ACCUMED INTERNATIONAL INC
S-2, 1996-07-26
IN VITRO & IN VIVO DIAGNOSTIC SUBSTANCES
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<PAGE>
     AS FILED WITH THE SECURITIES AND EXCHANGE COMMISSION ON JULY 26, 1996
 
                                                   SEC REGISTRATION NO. 333-
- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------
 
                       SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D.C. 20549
                           --------------------------
                                    FORM S-2
 
                             REGISTRATION STATEMENT
                        UNDER THE SECURITIES ACT OF 1933
                            ------------------------
                          ACCUMED INTERNATIONAL, INC.
             (Exact name of registrant as specified in its charter)
                         ------------------------------
 
<TABLE>
<S>                              <C>                            <C>
           DELAWARE                          2835                  36-4054899
 (State or other jurisdiction    (Primary Standard Industrial   (I.R.S. Employer
              of                 Classification Code Number)     Identification
incorporation or organization)                                        No.)
</TABLE>
 
                           --------------------------
                      900 NORTH FRANKLIN STREET, SUITE 401
                            CHICAGO, ILLINOIS 60610
                                 (312) 642-9200
   (Address and Telephone Number of Registrant's Principal Executive Offices)
                         ------------------------------
                               PETER P. GOMBRICH
                            CHIEF EXECUTIVE OFFICER
                          ACCUMED INTERNATIONAL, INC.
                      900 NORTH FRANKLIN STREET, SUITE 401
                            CHICAGO, ILLINOIS 60610
                                 (312) 642-9200
          (Name, Address, and Telephone Number, of Agent for Service)
                         ------------------------------
                                   COPIES TO:
 
<TABLE>
<S>                                                     <C>
                GILLES S. ATTIA, ESQ.
                 KEVIN A. COYLE, ESQ.                               CHARLES W. MULANEY, JR., ESQ.
                  GRAHAM & JAMES LLP                             SKADDEN, ARPS, SLATE, MEAGHER & FLOM
             400 CAPITOL MALL, SUITE 2400                         333 WEST WACKER DRIVE, SUITE 2100
             SACRAMENTO, CALIFORNIA 95814                              CHICAGO, ILLINOIS 60606
              FACSIMILE: (916) 441-6700                               FACSIMILE: (312) 407-0411
              TELEPHONE: (916) 558-6700                               TELEPHONE: (312) 407-0531
</TABLE>
 
    Approximate  date of commencement of proposed sale to the public: as soon as
practicable on or after the effective date of this Registration Statement.
 
    If any of the securities being registered on this form are to be offered  on
a  delayed or continuous basis pursuant to  Rule 415 under the Securities Act of
1933, check the following box. [  ]
 
    If  the  registrant  elects   to  deliver  its   latest  annual  report   to
security-holders,  or a complete and legible facsimile thereof, pursuant to Item
11(a)(1) of this form, check the following box. [  ]
 
    If this Form  is filed  to register  additional securities  for an  offering
pursuant to Rule 462(b) under the Securities Act, please check the following box
and  list  the  Securities  Act registration  statement  number  of  the earlier
effective registration statement for the same offering. [  ]
 
    If this Form  is a post-effective  amendment filed pursuant  to Rule  462(c)
under  the Securities Act, check  the following box and  list the Securities Act
registration statement number  of the earlier  effective registration  statement
for the same offering. [  ]  ________
 
    If  delivery of the prospectus is expected  to be made pursuant to Rule 434,
please check the following box. [  ]
                           --------------------------
 
                        CALCULATION OF REGISTRATION FEE
 
<TABLE>
<CAPTION>
                                                                  PROPOSED MAXIMUM        PROPOSED MAXIMUM
           TITLE OF SHARES                    AMOUNT TO            OFFERING PRICE             AGGREGATE            AMOUNT OF
           TO BE REGISTERED               BE REGISTERED (1)           PER SHARE            OFFERING PRICE       REGISTRATION FEE
<S>                                     <C>                    <C>                      <C>                    <C>
Common Stock, Par
 Value $0.01..........................    5,462,500 shares              $5.31                $29,005,875            $10,003
</TABLE>
 
(1) Includes 712,500 shares that the Underwriters have the option to purchase to
    cover over-allotments, if any.
 
(2)  Estimated  solely  for  the  purpose  of  calculating  the  amount  of  the
    registration  fee in accordance with Rule 457(c) under the Securities Act of
    1933, as amended, based on $5.31 per share, the average of the high and  low
    sales prices reported for the Common Stock on July 23, 1996.
                           --------------------------
 
    THE  REGISTRANT HEREBY  AMENDS THIS REGISTRATION  STATEMENT ON  SUCH DATE OR
DATES AS MAY BE NECESSARY TO DELAY ITS EFFECTIVE DATE UNTIL THE REGISTRANT SHALL
FILE A  FURTHER  AMENDMENT  WHICH  SPECIFICALLY  STATES  THAT  THE  REGISTRATION
STATEMENT  SHALL THEREAFTER BECOME EFFECTIVE IN  ACCORDANCE WITH SECTION 8(a) OF
THE SECURITIES ACT  OF 1933  OR UNTIL  THE REGISTRATION  STATEMENT SHALL  BECOME
EFFECTIVE  ON SUCH DATE AS THE COMMISSION, ACTING PURSUANT TO SAID SECTION 8(a),
MAY DETERMINE.
 
- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------
<PAGE>
INFORMATION   CONTAINED  HEREIN  IS  SUBJECT   TO  COMPLETION  OR  AMENDMENT.  A
REGISTRATION STATEMENT  RELATING TO  THESE SECURITIES  HAS BEEN  FILED WITH  THE
SECURITIES  AND EXCHANGE  COMMISSION. THESE SECURITIES  MAY NOT BE  SOLD NOR MAY
OFFERS TO BUY BE ACCEPTED PRIOR  TO THE TIME THE REGISTRATION STATEMENT  BECOMES
EFFECTIVE.  THIS  PROSPECTUS  SHALL  NOT  CONSTITUTE AN  OFFER  TO  SELL  OR THE
SOLICITATION OF AN OFFER TO BUY NOR SHALL THERE BE ANY SALE OF THESE  SECURITIES
IN  ANY STATE IN WHICH SUCH OFFER,  SOLICITATION OR SALE WOULD BE UNLAWFUL PRIOR
TO REGISTRATION OR QUALIFICATION UNDER THE SECURITIES LAWS OF ANY SUCH STATE.
<PAGE>
                  PRELIMINARY PROSPECTUS, DATED JULY 26, 1996
 
PROSPECTUS
 
                                4,750,000 SHARES
 
                                     [LOGO]
 
                                  COMMON STOCK
 
    Of the 4,750,000  shares of  Common Stock offered  hereby (the  "Offering"),
2,750,000 shares are being sold by AccuMed International, Inc. ("AccuMed" or the
"Company")  and 2,000,000 shares are being  sold by certain selling stockholders
of the Company (the "Selling Stockholders"). The Company will not receive any of
the  proceeds  from  the  sale  of  shares  of  Common  Stock  by  the   Selling
Stockholders. See "Principal and Selling Stockholders."
 
    The Common Stock is quoted on the Nasdaq Market under the symbol "ACMI." The
Company  has applied for  inclusion of the  Common Stock on  the Nasdaq National
Market under the symbol "ACMI." On July  23, 1996, the last reported sale  price
of  the Common Stock on the Nasdaq Market  was $5.38 per share. See "Price Range
of Common Stock."
 
    THE COMMON STOCK OFFERED  HEREBY INVOLVES A HIGH  DEGREE OF RISK. SEE  "RISK
FACTORS," BEGINNING ON PAGE 7.
THESE  SECURITIES HAVE NOT BEEN APPROVED OR DISAPPROVED BY THE SECURITIES AND
   EXCHANGE   COMMISSION   OR   ANY    STATE   SECURITIES   COMMISSION    NOR
      HAS THE SECURITIES AND EXCHANGE COMMISSION OR ANY STATE SECURITIES
        COMMISSION  PASSED UPON  THE ACCURACY  OR ADEQUACY  OF THIS
             PROSPECTUS. ANY  REPRESENTATION  TO            THE
                        CONTRARY IS A CRIMINAL OFFENSE.
 
<TABLE>
<CAPTION>
                                                     UNDERWRITING                       PROCEEDS TO
                                                     DISCOUNTS AND     PROCEEDS TO        SELLING
                                   PRICE TO PUBLIC  COMMISSIONS (1)    COMPANY (2)     STOCKHOLDERS
 Per Share.......................         $                $                $                $
<S>                                <C>              <C>              <C>              <C>
 Total(3)........................         $                $                $                $
</TABLE>
 
(1)  The  Company and  the  Selling Stockholders  have  agreed to  indemnify the
    Underwriters against certain  liabilities, including  liabilities under  the
    Securities Act of 1933, as amended. See "Underwriting."
 
(2)  Before deducting expenses of the Offering payable by the Company, estimated
    at $614,350.
 
(3) The Company has granted the Underwriters  a 30-day option to purchase up  to
    an  aggregate of 712,500 additional shares of Common Stock on the same terms
    and conditions set forth above, solely to cover over-allotments, if any.  If
    such  option is exercised  in full, the total  Price to Public, Underwriting
    Discounts and  Commissions, Proceeds  to Company,  and Proceeds  to  Selling
    Stockholders  will be $      , $     ,  $     and $      , respectively. See
    "Underwriting."
                           --------------------------
 
    The shares of Common Stock offered by the Underwriters are subject to  prior
sale,  receipt  and  acceptance  by  them  and  subject  to  the  right  of  the
Underwriters to  reject  any  order  in  whole or  in  part  and  certain  other
conditions.  It is  expected that delivery  of such  shares will be  made at the
offices of the agent of Vector  Securities International, Inc. in New York,  New
York on or about             , 1996.
 
                            ------------------------
 
Vector Securities International, Inc.  Tucker Anthony
                                                                Incorporated
 
          , 1996
<PAGE>
                               [GRAPHIC]
 
    The  graphic consists  of two  photographs. The  first photograph  is of the
TracCell-TM- 2000 automated specimen maping  workstation along with the  caption
"TracCell-TM-  automated specimen maping workstation (pictured right), currently
in development, will require FDA pre-marketing clearance."
 
    The second photograph is of the AcCell-TM- 2001 automated slide-handling and
microscopy  workstation  along  with  the  caption  "AcCell-TM-  2001  automated
slide-handling and microscopy workstation (pictured left)."
 
    The  following are  tradenames and  trademarks of  the Company  used in this
Prospectus: the "Alamar" logo and  name, alamarBlue-TM-, AccuMed, Inc.,  AccuMed
International,  Inc.,  the "AccuMed"  logo  and name,  AcCell-TM-, TracCell-TM-,
MacroVision-TM-,  Sensititre-Registered  Trademark-,  SensiTouch-TM-,  ARIS-TM-,
AutoReader-TM-, AutoInnoculator-TM-. This Prospectus also contains trademarks of
other companies.
                            ------------------------
 
               SPECIAL NOTE REGARDING FORWARD-LOOKING STATEMENTS
 
    Certain  statements under the captions "Prospectus Summary," "Risk Factors,"
"Use of Proceeds," "Management's Discussion and Analysis of Financial  Condition
and  Results  of Operations"  and "Business"  and  elsewhere in  this Prospectus
constitute "forward-looking  statements"  within  the  meaning  of  the  Private
Securities   Litigation   Reform  Act   of   1995  (the   "Reform   Act").  Such
forward-looking statements involve  known and unknown  risks, uncertainties  and
other factors which may cause the actual results, performance or achievements of
the  Company, or  industry results, to  be materially different  from any future
results,  performance   or   achievements   expressed   or   implied   by   such
forward-looking  statements.  Such  factors  include,  among  other  things, the
following: the Company's history of losses and uncertainty of profitability; the
uncertainty of  market  acceptance  of the  Company's  products;  the  Company's
limited   sales,  marketing  and  distribution   experience  and  dependence  on
distributors; the Company's highly competitive industry and rapid  technological
change  within  such  industry;  the  Company's  ability  to  obtain  rights  to
technology and  obtain and  enforce patents  and other  proprietary rights;  the
Company's  ability  to commercialize  and manufacture  products; the  results of
clinical studies; the results of
 
                                       2
<PAGE>
the Company's research  and development activities;  the business abilities  and
judgment  of the Company's  personnel; the availability  of qualified personnel;
changes in, or failure to comply with, governmental regulations; the ability  to
obtain  adequate financing in  the future; general  and business conditions; and
other factors referenced in this Prospectus. See "Risk Factors."
 
    IN CONNECTION WITH THE OFFERING,  THE UNDERWRITERS MAY OVER-ALLOT OR  EFFECT
TRANSACTIONS WHICH STABILIZE OR MAINTAIN THE MARKET PRICE OF THE COMMON STOCK OF
THE  COMPANY AT  A LEVEL ABOVE  THAT WHICH  MIGHT OTHERWISE PREVAIL  IN THE OPEN
MARKET. SUCH STABILIZING, IF COMMENCED, MAY BE DISCONTINUED AT ANY TIME.
 
                                       3
<PAGE>
                               PROSPECTUS SUMMARY
 
    THE  FOLLOWING SUMMARY  IS QUALIFIED  IN ITS  ENTIRETY BY  THE MORE DETAILED
INFORMATION AND  FINANCIAL STATEMENTS  APPEARING ELSEWHERE  IN THIS  PROSPECTUS,
INCLUDING  INFORMATION  UNDER "RISK  FACTORS."  EXCEPT AS  OTHERWISE  NOTED, ALL
INFORMATION IN THIS  PROSPECTUS, INCLUDING FINANCIAL  INFORMATION AND SHARE  AND
PER  SHARE DATA, ASSUMES NO EXERCISE OF THE UNDERWRITERS' OVER-ALLOTMENT OPTION.
SEE "UNDERWRITING." SPECIAL NOTE: CERTAIN STATEMENTS SET FORTH BELOW  CONSTITUTE
"FORWARD-LOOKING  STATEMENTS" WITHIN THE MEANING OF THE REFORM ACT. SEE "SPECIAL
NOTE REGARDING  FORWARD-LOOKING STATEMENTS"  ON PAGE  2 FOR  ADDITIONAL  FACTORS
RELATING TO SUCH STATEMENTS.
 
                                  THE COMPANY
 
    AccuMed  designs, manufactures and markets diagnostic screening products for
clinical diagnostic  laboratories  serving the  cytopathology  and  microbiology
markets.  The Company's  primary focus  is on  the development  of cytopathology
products that support the review and analysis of Pap smears in order to  improve
the  quality  of cell  analysis and  increase accuracy  and productivity  in the
laboratory. The Company  commenced sales of  its initial cytopathology  product,
the  AcCell-TM- Series 2000 automated slide handling and microscopy workstation,
at the end  of the first  quarter of 1996.  The Company is  currently testing  a
prototype   specimen   mapping   workstation,  the   TracCell-TM-   2000,  which
automatically pre-screens Pap smear slides to identify and create a computerized
map of empty space and certain non-clinically relevant portions of the  specimen
to  permit a more efficient  analysis of the test  slide. The Company expects to
file a  510(k) pre-market  notification with  the United  States Food  and  Drug
Administration (the "FDA") for the TracCell 2000 by the end of 1996. The Company
has  recently  entered into  an agreement  with  Olympus America  Inc. ("Olympus
America"), a  leading  supplier  of microscopes  to  the  cytopathology  market,
pursuant  to which Olympus America has exclusive third party distribution rights
to the AcCell Series 2000 and TracCell 2000 in North, Central and South America.
 
    An estimated  440,000 new  cases of  cervical cancer  are reported  annually
worldwide.  The American Cancer Society estimates  that, in the United States in
1996, 15,700 women  will be diagnosed  with invasive cervical  cancer and  4,900
women  will die of cervical cancer. However, virtually all cervical cancer cases
can  be  effectively  treated  with  timely  intervention  if  detected   early.
Furthermore,  in 1996, an estimated 65,000 American women will be diagnosed with
cervical carcinoma IN SITU, a precancerous condition. The Pap smear is currently
the most widely-used screening test for  early detection of cervical cancer  and
related  precancerous conditions. It is estimated  that in 1996 over 150 million
Pap smear tests  will be screened  worldwide, including over  50 million in  the
United  States. According to the American Cancer Society, widespread and regular
use of the Pap smear  as a screening test is  believed to have contributed to  a
greater than 70% decrease in mortality from cervical cancer in the United States
in the past 45 years.
 
    Initial  Pap smear testing  is performed by  specially trained professionals
known as cytotechnologists, who use a  microscope to screen and interpret up  to
100  slides per  day. In general,  this process  is complex and  tedious, and is
prone to error. Over 90% of  specimens reviewed are negative. Even  non-negative
specimens  may contain only 20 to 30 abnormal cells out of a total of as many as
50,000 to 300,000 cells on the  slide. As a result, slide interpretation  errors
can  be caused by fatigue of the  cytotechnologist and the habituation effect of
constantly viewing predominantly negative specimens. According to the JOURNAL OF
THE AMERICAN  MEDICAL ASSOCIATION,  clinical laboratories  generally  experience
false negative Pap smear diagnosis rates of 5% to 30%. In addition, conventional
Pap  smear  testing is  subject to  administrative  errors and  exposes clinical
laboratories to the risk of litigation and consequent liability.
 
    The Company's cytopathology products are intended to provide  cost-effective
solutions  to many  of the  problems of  conventional Pap  smear testing without
significantly modifying  existing  laboratory practices.  The  Company's  Accell
Series  2000 workstations  consist of  an interactive  computer-controlled slide
handling  and  precision  microscopy  workstation  that  is  supported  with   a
comprehensive  data  management  system.  The  TracCell  2000,  currently  under
development, is  designed  to  automatically  pre-screen  Pap  smear  slides  to
identify and create a computerized map of empty space and certain non-clinically
relevant  material. Tests  conducted by  the Company  suggest that  the TracCell
2000, by  locating and  mapping  such empty  space and  non-clinically  relevant
material, can eliminate 15% to 50% of the
 
                                       3
<PAGE>
slide  area required to be reviewed  by a cytotechnologist. The Company believes
that the Accell Series 2000 and the  TracCell 2000 have the potential to  reduce
cytotechnologist  fatigue and  habituation, reduce  the time  needed to evaluate
specimens, and allow the cytotechnologist to focus on more thoroughly evaluating
potential abnormalities. The  Company is also  developing software and  hardware
for  a  second generation,  fully automated,  high  volume mapping  product, the
TracCell 3000, and  is developing a  series of related  educational and  testing
products.  There can be no assurance that any such products will be successfully
developed or marketed.
 
    The Company  also develops,  manufactures and  markets IN  VITRO  diagnostic
microbiology products for the clinical laboratory, veterinary and pharmaceutical
markets. The Company offers the microbiology laboratory a variety of FDA-cleared
products,  under the tradename Sensititre-Registered Trademark-, for the minimum
inhibitory concentration  and  identification  ("MIC/ID")  testing  of  bacteria
suspected  of causing  infections and for  measuring the  susceptibility of such
bacteria  to  different  types  and  concentrations  of  antibiotics.  AccuMed's
microbiology  products include  disposable test  kits and  a range  of automated
instruments. The Company also  markets alamarBlue-TM-, a proprietary,  non-toxic
indicator reagent that measures cell growth for IN VITRO testing. The Company is
developing an automated instrument designed to read the results of a Kirby-Bauer
method  susceptibility test and,  pursuant to an  agreement with RADCO Ventures,
Inc. ("RADCO"), a joint-venture formed by the Company and certain investors,  is
developing  a  diagnostic  microbiology  test  panel  and  an  automated reading
instrument. There  can  be  no assurance  that  any  of such  products  will  be
successfully developed or marketed.
 
    AccuMed's objective is to establish the AcCell Series 2000 and TracCell 2000
as the leading microscopy workstations for the primary screening and analysis of
cytology  specimens while  developing other  new cytopathology  and microbiology
products. The key elements of  the Company's strategy include: (i)  establishing
the  AcCell  Series 2000  and, if  cleared for  marketing by  the FDA  and other
applicable regulatory agencies,  the TracCell  2000 in the  worldwide Pap  smear
testing  market  through distribution  agreements  and strategic  alliances with
major market participants, (ii) exploiting other applications for the  Company's
cytopathology  technology such as histology and pathology laboratory work, (iii)
continuing to  acquire, develop  and enhance  technologies that  complement  the
Company's   existing  technology   base  and  (iv)   integrating  the  Company's
proprietary microbiology technologies into new products.
 
    On July 3, 1996, the  Company entered into a letter  of intent to acquire  a
two-thirds  equity  interest in  Oncometrics  Imaging Corp.  ("Oncometrics") for
aggregate consideration of $4.0 million in cash (the "Oncometrics Acquisition").
Of such  consideration,  $2.0  million  would be  paid  to  Oncometrics'  parent
company,   Xillix  Technologies  Corp.  ("Xillix"),  for  currently  outstanding
Oncometrics stock and $2.0 million would be paid to Oncometrics for newly issued
Oncometrics stock. Oncometrics is developing an automated instrument designed to
capture and analyze images from microscope  slides that have been stained  using
Oncometrics'   proprietary  staining  method.   Prototypes  of  the  Oncometrics
instrument have been developed which  are capable of isolating small  variations
in  cell nucleus  DNA, which can  assist the cytotechnologist  in detecting lung
cancer in  an  early  stage  of  development.  The  Company  believes  that  the
Oncometrics  technology may potentially have applications in the early detection
of cervical  cancer as  well. The  Company is  also negotiating  to acquire  the
outstanding  shares of common  stock of RADCO and  approximately $1.2 million in
aggregate principal amount  of certain  promissory notes  sold by  RADCO to  its
initial  investors for an aggregate purchase price of approximately $1.4 million
in cash (the "RADCO Acquisition"). Such acquisitions are contingent upon,  among
other   things,  consummation  of  the  Offering  and  execution  of  definitive
agreements. See  "Use  of Proceeds,"  "Business  -- Cytopathology  --  Potential
Acquisition  of  Interest  in  Oncometrics" and  "--  Microbiology  -- Potential
Acquisition of RADCO."
 
                                   BACKGROUND
 
    The Company  was incorporated  in California  in June  1988 under  the  name
Alamar  Biosciences, Inc. Prior to December 29, 1995, the Company was engaged in
developing,  manufacturing  and   marketing  microbiology  products,   including
alamarBlue   and   certain  diagnostic   test  kits   under  the   name  Alamar.
 
                                       4
<PAGE>
AccuMed, Inc., an  Illinois corporation,  was formed  in February  1994 and  was
engaged  in researching and developing cytopathology products. Effective January
1995, AccuMed, Inc. acquired the Sensititre microbiology business by  purchasing
certain  assets of  a division of  Radiometer America, Inc.  and purchasing from
Radiometer (UK) Limited  all of  the shares  of Sensititre  Limited, an  English
registry  company  (renamed  AccuMed  International  Limited,  "Sensititre," and
collectively, such businesses are referred  to as "AccuMed, Inc."). On  December
29,  1995, AccuMed, Inc.  merged with and  into the Company  (the "Merger"). The
Company then changed  its name  to AccuMed  International, Inc.,  reincorporated
under Delaware law and changed its fiscal year end from September 30 to December
31. The Company has recently discontinued the manufacture of Alamar microbiology
products, except for alamarBlue.
 
    The  Company's principal executive offices are located at 900 North Franklin
Street, Suite 401, Chicago,  Illinois 60610, and its  telephone number is  (312)
642-9200.
 
                                       5
<PAGE>
                                  THE OFFERING
 
<TABLE>
<CAPTION>
Common Stock offered by:
<S>                                                <C>
  The Company....................................  2,750,000 shares
  The Selling Stockholders.......................  2,000,000 shares
Common Stock to be outstanding after the           21,973,333 shares (1)
 Offering........................................
Use of proceeds by the Company...................  To fund product research and development; scale-up
                                                   of manufacturing; the Oncometrics Acquisition; the
                                                   RADCO Acquisition; and working capital and general
                                                   corporate   purposes,   including   reduction   in
                                                   accounts payable. See "Use of Proceeds."
Nasdaq Market symbol.............................  ACMI
Proposed Nasdaq National Market symbol...........  ACMI
</TABLE>
 
                      SUMMARY CONSOLIDATED FINANCIAL DATA
                     (IN THOUSANDS, EXCEPT PER SHARE DATA)
 
<TABLE>
<CAPTION>
                                                                             THREE MONTH
                                                          FISCAL              TRANSITION
                                                        YEAR ENDED           PERIOD ENDED              THREE MONTHS ENDED
                                                    SEPTEMBER 30, 1995    DECEMBER 31, 1995              MARCH 31, 1996
                                                    -------------------   ------------------   -----------------------------------
                                                       PRO FORMA (2)        PRO FORMA (2)           ACTUAL         PRO FORMA (2)
                                                    -------------------   ------------------       --------       ----------------
<S>                                                 <C>                   <C>                  <C>                <C>
STATEMENT OF OPERATIONS DATA:
  Sales...........................................        $ 4,144              $ 1,184            $       1,188      $ 1,190
  Operating loss..................................         (7,056)              (7,060)(3)               (4,789)(3)     (5,010)(3)
  Net loss........................................         (6,740)              (7,077)                  (2,649)      (2,795)
  Net loss per common share.......................          (0.69)               (0.60)                  )(0.17        (0.18)
  Weighted average common shares outstanding......          9,832               11,743                   15,797       15,797
</TABLE>
 
<TABLE>
<CAPTION>
                                                                         DECEMBER 31,           MARCH 31, 1996
                                                                             1995       ------------------------------
                                                                         -------------                    PRO FORMA
                                                                            ACTUAL         ACTUAL      AS ADJUSTED (4)
                                                                         -------------  -------------  ---------------
<S>                                                                      <C>            <C>            <C>
BALANCE SHEET DATA:
  Working capital (deficit)............................................    $  (2,459)     $    (184)      $  11,128
  Total assets.........................................................        5,974          9,316          24,242
  Long-term liabilities, net of current portion (5)....................           90             68             295
  Total stockholders' equity...........................................          729          5,029          18,915
</TABLE>
 
- ------------------------------
 
(1) Based upon shares outstanding at July 19, 1996, of which 940,955 shares  are
    subject to forfeiture if certain specified earnings per share or stock price
    performance  thresholds are not met during  1997. Excludes: (i) an aggregate
    of  6,007,805  shares  reserved  for  issuance  upon  exercise  of  warrants
    outstanding  at July 19, 1996  (of which 480,402 shares  will be issued upon
    exercise prior to  consummation of the  Offering and sold  in the  Offering)
    with a weighted average exercise price of $3.21 per share; (ii) an aggregate
    of 1,789,638 shares reserved for issuance upon the exercise of stock options
    outstanding  at July 19, 1996  (of which 124,395 shares  will be issued upon
    exercise prior to  consummation of the  Offering and sold  in the  Offering)
    with  a weighted  average exercise  price of $2.62  per share;  and (iii) an
    aggregate of 476,631 shares reserved  for issuance upon exercise of  options
    available  for  future grant  under the  Company's  stock option  plans. See
    "Management's Discussion and Analysis of Financial Condition and Results  of
    Operations,"  "Management --  Stock Option  Plans" and  Note 16  of Notes to
    Consolidated Financial Statements.
 
(2) Includes the  operating results of  AccuMed, Inc. and  Oncometrics on a  pro
    forma  basis  assuming  that  the  Merger  and  the  Oncometrics Acquisition
    occurred on  October 1,  1994. See  "The Company"  and Pro  Forma  Condensed
    Combining Financial Statements.
 
(3) Includes $4.0 million and $3.5 million for the three month transition period
    ended December 31, 1995 and three months ended March 31, 1996, respectively,
    recorded  as a non-cash charge against  operations relating to the write-off
    of in-process  research  and development  acquired  in connection  with  the
    Merger. See "Management's Discussion and Analysis of Financial Condition and
    Results of Operations."
 
(4)  Includes the net  assets of Oncometrics and  RADCO assuming the Oncometrics
    Acquisition and the RADCO Acquisition  occurred on March 31, 1996.  Adjusted
    to  reflect the receipt and application of the net proceeds from the sale of
    2,750,000 shares of Common Stock offered by the Company hereby at an assumed
    offering price  of $5.38  per share,  and  the receipt  of proceeds  to  the
    Company  of  approximately  $754,000  in  connection  with  the  exercise of
    outstanding stock options and warrants  to purchase an aggregate of  604,797
    shares  of Common Stock  to be sold  by certain Selling  Stockholders in the
    Offering. See "Use  of Proceeds," "Principal  and Selling Stockholders"  and
    "Description of Capital Stock."
 
(5)  Long-term liabilities consists of capital lease obligations. See Note 13 of
    Notes to Consolidated Financial Statements.
 
                                       6
<PAGE>
                                  RISK FACTORS
 
    AN  INVESTMENT IN THE SHARES OF COMMON  STOCK OFFERED HEREBY INVOLVES A HIGH
DEGREE OF RISK.  PROSPECTIVE INVESTORS SHOULD  CAREFULLY CONSIDER THE  FOLLOWING
RISK  FACTORS, IN ADDITION TO THE  OTHER INFORMATION IN THIS PROSPECTUS. SPECIAL
NOTE: CERTAIN STATEMENTS SET FORTH BELOW CONSTITUTE "FORWARD-LOOKING STATEMENTS"
WITHIN  THE   MEANING  OF   THE  REFORM   ACT.  SEE   "SPECIAL  NOTE   REGARDING
FORWARD-LOOKING  STATEMENTS" ON PAGE  2 FOR ADDITIONAL  FACTORS RELATING TO SUCH
STATEMENTS.
 
    LIMITED  RELEVANT   OPERATING   HISTORY;   SIGNIFICANT   OPERATING   LOSSES;
ACCUMULATED   DEFICIT;  SUBSTANTIAL  COSTS  OF  INTEGRATION  AND  CONSOLIDATION;
UNCERTAINTY OF PROFITABILITY.   The Company  was formed in  1988 under the  name
Alamar  Biosciences, Inc. and was engaged  primarily in research and development
of microbiology  products  based on  the  alamarBlue technology.  Prior  to  the
Merger,  the Company never realized any significant revenues from product sales.
AccuMed, Inc. was incorporated  in February 1994 and  in February 1995  acquired
the  Sensititre microbiology business. Until such acquisition, AccuMed, Inc. had
no revenues  and  operations consisted  of  a limited  amount  of  cytopathology
research  and development. Accordingly,  although the Sensititre  business had a
significant operating  history and  revenues  from sales,  AccuMed, Inc.,  as  a
separate  entity, had very  limited operating history prior  to the Merger. Upon
consummation of the Merger, the operations of the Company and AccuMed, Inc. were
combined, and  the Company  began  to develop,  manufacture  and sell  both  the
alamarBlue  and  the  Sensititre  microbiology products  and  recently  began to
commercialize certain AccuMed  cytopathology products. Thus,  the Company has  a
limited relevant operating history upon which an evaluation of its prospects can
be  made. Such prospects must be considered  in light of the risks, expenses and
difficulties  frequently  encountered  in  establishing  a  new  business  in  a
continually  evolving industry with an increasing  number of market entrants and
intense competition as well as the risks, expenses and difficulties  encountered
in  the shift  from development  to commercialization  of new  products based on
innovative technology.
 
    The Company has  incurred significant  net operating losses  in each  fiscal
quarter  since its inception. For the fiscal  years ended September 30, 1994 and
1995, and for the transition period ended December 31, 1995 and the three months
ended March 31,  1996, the  Company's operating losses  were approximately  $3.1
million,  $3.8 million, $5.7 million and  $2.6 million, respectively. Losses for
the fiscal years ended September 30, 1994 and 1995 and for the transition period
ended December 31, 1995 relate solely  to the Company's operations prior to  the
Merger.  As  of  March 31,  1996,  the  Company had  an  accumulated  deficit of
approximately $25.4 million. Losses are expected to continue for the foreseeable
future until such time, if ever, as  the Company is able to attain sales  levels
sufficient to support its operations. There can be no assurance that the Company
will  be  able  to  implement  successfully  its  operating  strategy,  generate
increased revenues or ever achieve profitable operations. See "-- Uncertainty of
Market Acceptance and Initial Investment in Cytopathology Products."
 
    UNCERTAINTY OF  MARKET ACCEPTANCE  AND INITIAL  INVESTMENT IN  CYTOPATHOLOGY
PRODUCTS.   The  Company has  generated limited  revenues from  the sale  of its
cytopathology products to date. The Company's success, growth and  profitability
will  depend primarily on  market acceptance of  the AcCell Series  2000 and the
TracCell 2000,  if  cleared  for  marketing by  the  FDA  and  other  applicable
regulatory  agencies, for  use in connection  with cervical  cancer screening by
cytopathology laboratories.  Market  acceptance  will depend  on  the  Company's
ability to demonstrate to such laboratories that the limitations associated with
conventional  Pap smear screening and analysis can be cost effectively addressed
by its products. There can be no assurance that the Company can demonstrate that
the high initial cost of equipping existing laboratories with the AcCell  Series
2000  and TracCell 2000, if cleared for marketing, will be offset by a reduction
in  costs  associated  with  increased  efficiency  and  decreased   malpractice
liability  risks resulting from more  accurate diagnosis, better data management
capability and  better documentation  of slide  review procedures.  The  Company
believes  that many clinical  laboratories offer Pap smear  tests at lower gross
margins than other tests  in order to receive  orders for other, higher  margin,
laboratory  tests.  As  a  result, clinical  laboratories  may  be  reluctant or
unwilling to accept the additional costs related to installing and utilizing the
AcCell Series 2000  and the  TracCell 2000.  Furthermore, clinical  laboratories
have  recently been presented with a variety  of new products claimed to improve
the cervical cancer
 
                                       7
<PAGE>
screening  process  either  through  changing  the  slide  preparation   method,
automating   the  re-examination   or  rescreening   of  conventional  specimens
previously diagnosed as negative or rescreening such specimens using reagents to
detect certain RNA/DNA hybrid cells claimed to indicate the presence of cervical
cancer. This  proliferation  of competing  claims,  products and  approaches  to
cervical  cancer screening  may cause market  confusion which could  result in a
laboratory maintaining  its  current  equipment  and  practices  or  delaying  a
decision  of whether to purchase the  Company's products or a competing product.
See "-- Technological Change and Competition."
 
    LIMITED NUMBER  OF  CUSTOMERS.    Due  in part  to  a  recent  trend  toward
consolidation  of clinical laboratories, the Company  expects that the number of
potential domestic customers for its  cytopathology products will decrease.  Due
to  the relative  size of  the largest  U.S. laboratories,  it is  likely that a
significant portion of the sales of the AcCell Series 2000 and TracCell 2000, if
cleared for marketing, will be concentrated  among a relatively small number  of
customers.  In order to promote acceptance in  the market, the Company will need
to foster an  awareness of and  acceptance by these  potential customers of  the
AcCell  Series 2000 and  the TracCell 2000  and of the  benefits of such systems
over current methods. The  Company's dependence on  sales to large  laboratories
may  strengthen the purchasing leverage of  these potential customers. There can
be no assurance that the Company will be successful in selling its products,  or
that  any such sales will  result in sufficient revenue  to allow the Company to
become profitable.
 
    DELAYED OR  UNSUCCESSFUL  PRODUCT DEVELOPMENT.    The Company's  growth  and
profitability  will depend, in part, upon its ability to complete development of
and successfully  introduce  new  products, including  the  TracCell  2000.  The
Company   will  likely  be  required  to  undertake  time-consuming  and  costly
development activities and seek regulatory approval for new products. There  can
be  no assurance  that the Company  will not experience  difficulties that could
delay or prevent the successful  development, introduction and marketing of  new
products,  that regulatory  clearance or approval  of these or  any new products
will be  granted on  a timely  basis, if  ever, or  that the  new products  will
adequately  meet the  requirements of  the applicable  market or  achieve market
acceptance. The completion of the development  of any of the Company's  products
under  development  remains  subject  to  all  the  risks  associated  with  the
commercialization of new  products based on  innovative technologies,  including
unanticipated  technical or  other problems, manufacturing  difficulties and the
possible insufficiency  of  the  funds  allocated for  the  completion  of  such
development,  which  could  result in  a  change  in the  design,  delay  in the
development or the abandonment of such  products. Consequently, there can be  no
assurance  that  any  of  the  Company's  products  under  development  will  be
successfully developed or manufactured or,  if developed and manufactured,  that
such  products  will meet  price or  performance objectives,  be developed  on a
timely basis or prove to be as effective as competing products. The inability to
successfully  complete  development   of  a   product  or   application,  or   a
determination  by the Company, for financial, technical or other reasons, not to
complete development of any product or application, particularly in instances in
which the  Company  has made  significant  capital expenditures,  could  have  a
material  adverse  affect on  the  Company's business,  financial  condition and
results of  operations and  could cause  the Company  to reassess  its  business
strategy.  Such  reassessment could  lead to  changes  in the  Company's overall
business plan, including the  relative emphasis on current,  as well as  future,
products.   See  "--  Government  Regulation,"  "Business  --  Cytopathology  --
Cytopathology Products" and "-- Microbiology -- Microbiology Products."
 
    LIMITED SALES, MARKETING  AND DISTRIBUTION EXPERIENCE;  DEPENDENCE ON  THIRD
PARTY  DISTRIBUTORS.  In order for the  Company to increase revenues and achieve
profitability, the  Company's products,  particularly its  current and  proposed
cytopathology  products, must achieve a significant degree of market acceptance.
The Company has only limited experience marketing and selling its  cytopathology
products. The Company intends to distribute its cytopathology products primarily
through  a limited number of distributors. The Company has only recently entered
into its only  current distribution  arrangement, which is  an exclusive,  three
year  distribution agreement for North, Central  and South America (the "Olympus
Territory") with Olympus  America. The Company  will be required  to enter  into
additional  distribution arrangements in order  to achieve broad distribution of
its cytopathology products. There
 
                                       8
<PAGE>
can be no assurance that the Company  will be able to maintain the  distribution
arrangement  with Olympus America or that the Company will be able to enter into
and maintain arrangements with additional  distributors on acceptable terms,  or
on  a  timely  basis,  if at  all.  The  Company will  be  dependent  upon these
distributors to assist it in promoting  market acceptance of and demand for  its
products.  In addition, because the Company intends  to rely on a limited number
of distributors, sales  to these  distributors could account  for a  significant
portion  of  the  Company's  revenues.  There can  be  no  assurance  that these
distributors will devote the resources necessary to provide effective sales  and
marketing  support to the  Company. In addition,  the Company's distributors may
give higher priority  to the products  of other medical  suppliers or their  own
products,  thus reducing their efforts to sell the Company's products. If any of
the Company's distributors  become unwilling  or unable to  promote, market  and
sell  its products, the  Company's business, financial  condition and results of
operations would be materially adversely  affected. Further, Olympus America  is
the  exclusive  distributor  of  the AcCell  Series  2000  and,  if successfully
developed and cleared for marketing, the TracCell 2000 in the Olympus Territory,
and other distributors may also have exclusive distribution arrangements. To the
extent any exclusive distributor  fails to adequately  promote, market and  sell
the  Company's products,  the Company  may not be  able to  secure a replacement
distributor until after  the term of  the distribution contract  is complete  or
unless such contract can otherwise be terminated.
 
    TECHNOLOGICAL  CHANGE  AND COMPETITION.   The  Company's AcCell  Series 2000
currently faces, and the  TracCell 2000, if  successfully developed and  cleared
for  marketing,  will face  competition from  companies  that may  be developing
competing systems. The Company believes that many of the Company's existing  and
potential competitors possess substantially greater financial, marketing, sales,
distribution  and technical resources  than the Company,  and more experience in
research and development, clinical trials, regulatory matters, manufacturing and
marketing. The Company is aware of  two companies that currently market  imaging
systems  to re-examine or rescreen  conventional Pap smears previously diagnosed
as negative  as  well as  two  companies that  are  developing devices  for  the
preparation and analysis of Pap smear slides. The Company is aware that at least
one  such company has submitted an imaging system  for use as a primary means of
screening Pap smear slides under a pre-market approval (a "PMA") application  to
the  FDA under the United  States Food, Drug and  Cosmetic Act (the "FD&C Act").
Another company markets a manual rescreening test claimed to detect the presence
of cervical cancer using reagents to detect certain RNA/DNA hybrid cells. If any
company currently  marketing  rescreening  products receives  FDA  clearance  or
approval for use of its product as a primary screening system to replace or work
in  conjunction with  conventional Pap  smear testing  or if  automated analysis
systems are  developed  and  receive  FDA clearance  or  approval,  the  use  of
conventional  Pap smear tests could be  substantially affected and the Company's
business, financial  condition and  results of  operations could  be  materially
adversely affected.
 
    The   market  for  the   Company's  current  and,   if  developed,  proposed
microbiology products  is  highly competitive,  and  the Company  competes  with
numerous  well-established foreign and domestic companies, most of which possess
substantially greater  financial,  technical,  marketing,  personnel  and  other
resources  than the Company and have  established reputations for success in the
development, sale and  service of  manual and/or automated  IN VITRO  diagnostic
testing  products. A significant  portion of the  MIC/ ID testing  market in the
United States is controlled  by two companies,  MicroScan, Inc., a  wholly-owned
subsidiary  of Dade International,  Inc. ("MicroScan"), and  bioMerieux Vitek, a
division  of   bioMerieux,  a   French  company   ("bioMerieux  Vitek").   Difco
Laboratories,  Inc. ("Difco") has been issued  a U.S. patent covering technology
related to the alamarBlue  technology covered in one  of the Company's  patents.
There  can be no assurance that Difco, which has substantially greater resources
and experience in  research, development, manufacturing  and marketing than  the
Company,  will not  use its  patented technology  to develop  products that will
compete directly with the Company's microbiology products.
 
    The  medical  diagnostics  industry   is  characterized  by  rapid   product
development  and technological  advances. There can  be no  assurance that other
technologies or products that are functionally  similar to those of the  Company
are  not currently available or under  development, or that other companies with
expertise and resources  that would  encourage them  to attempt  to develop  and
market competitive
 
                                       9
<PAGE>
products  will not develop new products  directly competitive with the Company's
products. The Company's products could  be rendered obsolete or uneconomical  by
the  introduction  and market  acceptance  of competing  products, technological
advances of  the  Company's  current  or  potential  competitors,  or  by  other
approaches.  There can be no assurance that  the Company will be able to compete
successfully  against  current  or  future  competitors  or  that   competition,
including  the development and commercialization of new products and technology,
will not have  a material adverse  effect on the  Company's business,  financial
condition and results of operations. See "Business -- Competition."
 
    GOVERNMENT  REGULATION.  The Company's  products and manufacturing processes
are regulated by state  and federal agencies, including  the FDA and  comparable
agencies  in  certain  states  and  other  countries.  United  States regulatory
requirements promulgated under the FD&C Act  provide that many of the  Company's
products  may not be shipped in  interstate commerce without prior authorization
from the FDA. Such authorization is based on a review of a product's safety  and
effectiveness  for its intended  uses. Medical devices may  be authorized by the
FDA for marketing  either pursuant  to a pre-market  notification under  Section
510(k)  of the FD&C Act  (a "510(k) Notification") or a  PMA under the FD&C Act.
The process  of  obtaining  clearances  or approvals  from  the  FDA  and  other
applicable  regulatory agencies can be  expensive, uncertain and time consuming,
frequently requiring several years from  the commencement of clinical trials  to
the receipt of regulatory approval.
 
    A  510(k) Notification,  among other things,  requires an  applicant to show
that its  products  are  "substantially  equivalent"  in  terms  of  safety  and
effectiveness  to existing products that are currently permitted to be marketed.
An applicant  is permitted  to begin  marketing a  product as  to which  it  has
submitted a 510(k) Notification at such time as the FDA issues a written finding
of  substantial equivalence. Requests  for additional information  may delay the
market introduction  of  an  applicant's  products  and,  in  practice,  initial
approval  of  products can  take substantially  longer  than the  FDA pre-market
notification review period of 90 days.
 
    A PMA consists  of the submission  to the FDA  of information sufficient  to
establish  independently that  a device is  safe and effective  for its intended
use.  A  PMA  application  must  be  supported  by  extensive  data,   including
preclinical  and clinical trial  data, as well as  extensive literature to prove
the safety and effectiveness of the device.  By statute, the FDA is required  to
respond  to a PMA within 180 days from  the date of its submission; however, the
approval process usually takes substantially longer, often three or more  years.
During the review period, the FDA may conduct extensive reviews of the Company's
facilities,   deliver   multiple   requests  for   additional   information  and
clarifications and convene advisory panels to assist in its determination.
 
    FDA  clearances  and   approvals,  if  granted,   may  include   significant
limitations  on  the intended  uses for  which  a product  may be  marketed. FDA
enforcement policy  strictly  prohibits the  promotion  of cleared  or  approved
medical  devices  for non-approved  or  "off-label" uses.  In  addition, product
clearances or approvals may be withdrawn  for failure to comply with  regulatory
standards or the occurrence of unforeseen problems following initial marketing.
 
    Marketing  of the AcCell Series  2000 in the United  States does not require
FDA clearance or approval. Marketing of the TracCell 2000 in the United  States,
however,   will  require  pre-marketing  clearance   by  the  FDA.  The  Company
anticipates that such clearance  will be sought through  submission of a  510(k)
Notification rather than a PMA. The Company is currently conducting the required
testing  of the TracCell 2000  and expects to submit  a 510(k) Notification with
respect to the TracCell 2000 by the end of 1996. There can be no assurance  that
the  Company will successfully complete the necessary testing on a timely basis,
if ever, that the TracCell 2000 510(k) Notification will be submitted to the FDA
by the end of 1996, if  ever, or that the FDA  will clear the TracCell 2000  for
marketing  in the United States on a timely  basis, if ever. It is also possible
that the FDA could require a PMA  submission for the TracCell 2000, which  would
result  in significant delays in  bringing the TracCell 2000  to the U.S. market
and could have a  material adverse effect on  the Company's business,  financial
condition and results of operations.
 
    Marketing of the Company's MIC/ID microbiology products in the United States
requires  FDA clearance through the 510(k) Notification process. With respect to
the Company's MIC/ID testing
 
                                       10
<PAGE>
products, 510(k) Notifications must  be filed and cleared  with respect to  each
antibiotic   used.  The  Company  may  submit  applications  to  add  individual
antibiotics to those previously cleared  as the market warrants. However,  there
can  be  no assurance  that  clearances will  continue  to be  obtained  or that
obtained clearances  will  not be  withdrawn.  Marketing of  alamarBlue  to  the
industrial and research markets does not require FDA clearance or approval.
 
    Marketing  in the United States of  the Company's products under development
may require additional FDA clearances  or approvals. For example, the  Company's
proposed  next-generation  specimen  mapping  product,  the  TracCell  3000,  if
developed, may not be sold in the United States unless and until the Company has
obtained FDA clearance or  approval, either through a  510(k) Notification or  a
PMA.  In  addition,  marketing  of the  Company's  proposed  Kirby-Bauer reading
instrument (the  "KB  Reader")  and other  proposed  microbiology  products,  if
developed, are likely to require FDA clearance through 510(k) Notifications. The
Company  is currently researching  and developing such products  and has not yet
begun clinical trials. There can be no assurance that any such products will  be
developed  or, if developed, that such products  will be cleared or approved for
marketing or, if such  clearance or approval  is received, that  it will not  be
withdrawn.  See "Business  -- Cytopathology  -- Cytopathology  Products" and "--
Microbiology -- Microbiology Products."
 
    Sales of medical devices  outside the United States  are subject to  foreign
regulatory  requirements that vary from country to country. The time required to
obtain approval by a foreign country may be longer or shorter than that required
for FDA clearance or approval, and the requirements may differ. Export sales  of
certain  devices  that have  not received  FDA  marketing clearance  or approval
generally are subject to both FDA export permit requirements and, in some cases,
general U.S. export regulations.  In order to obtain  an FDA export permit,  the
Company  may be required to provide the  FDA with documentation from the medical
device regulatory authority of the country in which the purchaser is located. No
assurance can be given  that foreign regulatory approvals  will be granted on  a
timely  basis,  if  ever. The  Company  intends  to seek  qualification  for its
international  manufacturing  operations   under  the  International   Standards
Organization ("ISO") 9001 Series of Standards, and to seek the "CE" mark for the
AcCell Series 2000 and proposed products. The CE mark is recognized by countries
that  are members of the European Union  and the European Free Trade Association
and, effective in 1998, will  be required to be  affixed to all medical  devices
sold  in the European Union. The AcCell  Series 2000 is expected to be certified
as complying with CE mark requirements upon completion of this process; however,
no assurance can  be given  that the  Company will obtain  the CE  mark for  the
AcCell  Series 2000 or any  proposed products or satisfy  ISO 9001 standards, or
that any product that the Company  may develop or commercialize will obtain  the
CE  mark or will obtain any other required regulatory clearance or approval on a
timely basis, if ever.
 
    The Company  is  subject to  certain  FDA registration,  record-keeping  and
reporting  requirements, and  certain of the  Company's manufacturing facilities
are obligated to follow FDA  Good Manufacturing Practice ("GMP") guidelines  and
are   subject  to  periodic  FDA   inspection.  The  Company's  facilities  that
manufacture FDA-cleared products  currently meet applicable  GMP guidelines  and
FDA regulations. There can be no assurance, however, that the facilities used to
manufacture the Company's products will continue to meet applicable GMP or other
FDA guidelines.
 
    Federal, state and foreign regulations regarding the manufacture and sale of
healthcare  products and  diagnostic devices are  subject to  future change. The
Company cannot predict what material impact, if any, such changes might have  on
its business. Future changes in regulations or enforcement policies could impose
more  stringent  requirements  on  the  Company,  compliance  with  which  could
adversely  affect  the  Company's  business.  Such  changes  may  relax  certain
requirements, which could prove beneficial to the Company's competitors and thus
adversely affect the Company's business. In addition, regulations of the FDA and
state and foreign laws and regulations, including GMP guidelines, depend heavily
on  administrative interpretations,  and there can  be no  assurance that future
interpretations made  by the  FDA,  or other  regulatory bodies,  with  possible
retroactive effect, will not adversely affect the Company. See "-- Technological
Change and Competition."
 
                                       11
<PAGE>
    In  addition to the  regulations directly pertaining to  the Company and its
products, many of the Company's existing and potential customers are subject  to
extensive  regulation  and  governmental oversight.  Regulatory  changes  in the
healthcare  industry  that  adversely  affect  the  business  of  the  Company's
customers  could  have  a material  adverse  effect on  the  Company's business,
financial condition  and  results of  operations.  See "Business  --  Government
Regulation."
 
    DEPENDENCE  ON KEY  EMPLOYEES.  The  Company believes that  its success will
depend to a significant extent upon the  efforts and abilities of a small  group
of  executive, scientific and marketing personnel, and in particular on Peter P.
Gombrich, the  Company's Chairman  of  the Board,  Chief Executive  Officer  and
President.  The loss of the services of one or more of these key personnel could
have a material adverse  effect on the  Company's business, financial  condition
and results of operations. In addition, the Company's future success will depend
upon  its ability  to continue  to attract  and retain  qualified scientific and
management personnel who are in great demand. There can be no assurance that the
Company will be successful in attracting and retaining such personnel.
 
    PROTECTION OF INTELLECTUAL PROPERTY.  The Company relies on a combination of
patents, licensing  arrangements, trade  names,  trademarks, trade  secrets  and
confidentiality  agreements  to protect  its  intellectual property  rights. The
Company has  filed or  been  assigned eight  U.S. patent  applications  covering
certain  aspects  of  its  cytopathology  products.  The  Company  holds certain
licenses on several  U.S. and  foreign patents and  other intellectual  property
rights  regarding aspects of  the technology embodied  in the Sensititre product
line and is  the licensee  of certain  automated cell  analysis technology.  The
Company  holds a  U.S. patent  and has received  a notice  of intent  to grant a
related European patent with respect to a portion of the alamarBlue microbiology
technology.
 
    None of the Company's patent applications has been granted as of the date of
this Prospectus, and there can be no assurance that any such patent  application
will result in an issued patent. The Company may, in the future, file additional
patent applications; however, there can be no assurance that the Company will be
successful in obtaining approval of any future patent applications it files with
respect  to  its technologies.  In addition,  since  patent applications  in the
United  States  are  maintained  in  secrecy  until  patents  issue,  and  since
publications  of discoveries in the scientific  or patent literature tend to lag
behind actual discoveries by several months, the Company cannot be certain  that
the  Company or other relevant patent application filer was the first creator of
inventions covered by pending patent applications or that such persons were  the
first to file patent applications for such inventions.
 
    There   can  be  no  assurance   that  the  aforementioned  patents,  patent
applications and licenses  will adequately  protect the  Company from  potential
infringement  by third parties.  Such patents, patent  applications and licenses
may cover only portions of the Company's technologies. Other portions may be  in
the  public domain or protectable only under trade secret laws. The Company has,
in the  past,  been required  to  undertake  costly litigation  to  enforce  its
intellectual property rights and, although the Company is not currently aware of
any  potential infringement, there can be no assurance that the Company will not
be required to take action to enforce its rights in the future.
 
    The Company  has filed  two U.S.  trademark applications,  and is  currently
preparing  three more  trademark applications for  filing. The  Company may file
additional U.S. and foreign  trademark applications in  the future. However,  no
trademark  registrations have yet been granted to  the Company, and there can be
no assurance that any such registrations will be granted. In addition, there can
be no assurance that third parties have not or will not adopt or register  marks
that are the same or substantially similar to those of the Company, or that such
third  parties will not  be entitled to use  such marks to  the exclusion of the
Company. Selecting  new  trademarks to  resolve  such situations  could  involve
significant  costs, including the  loss of goodwill already  gained by the marks
previously used.
 
    The Company also relies for protection of its intellectual property on trade
secret law and nondisclosure and confidentiality agreements with its  employees,
consultants,  distributors, researchers and advisors.  There can be no assurance
that   such   agreements   will   provide   meaningful   protection   for    the
 
                                       12
<PAGE>
Company's trade secrets or proprietary know-how in the event of any unauthorized
use  or disclosure of  such trade secrets  or know-how. In  addition, others may
obtain access to, or independently develop, technologies or know-how similar  to
that of the Company.
 
    The  Company's success will also depend on its ability to avoid infringement
of patent or other proprietary rights of  others. The Company is not aware  that
it  is  infringing  any  such rights  of  a  third  party, nor  is  it  aware of
proprietary rights of others for which it  will be required to obtain a  license
in  order to develop its  products. However, there can  be no assurance that the
Company is not infringing proprietary rights of others, or that the Company will
be able to  obtain any technology  licenses it  may require in  the future.  See
"Business -- Intellectual Property."
 
    POTENTIAL  FLUCTUATIONS IN  FUTURE QUARTERLY  RESULTS.   The Company expects
that its operating results will fluctuate significantly from quarter to  quarter
in  the future and will depend on various factors, many of which are outside the
Company's control. These factors include the success of the marketing efforts of
the Company  and its  distribution partners,  the likelihood,  timing and  costs
associated  with  obtaining  necessary regulatory  clearances  or  approval, the
timing and  level  of  expenditures  associated  with  expansion  of  sales  and
marketing  activities  and overall  operations,  the Company's  ability  to cost
effectively expand manufacturing capacity  and maintain consistently  acceptable
yields,  the timing of establishment  of strategic distribution arrangements and
the success  of the  activities conducted  under such  arrangements, changes  in
demand  for the Company's products, order cancellations, competition, changes in
government regulation and other factors,  the timing of significant orders  from
and  shipments to customers, and general  economic conditions. These factors are
difficult to forecast, and these or other factors could have a material  adverse
effect on the Company's business, financial condition and results of operations.
 
    Fluctuations  in  quarterly demand  for  products may  adversely  affect the
continuity of the  Company's manufacturing operations,  increase uncertainty  in
operational  planning,  disrupt  cash  flow  from  operations  and  increase the
volatility of the Company's stock price. The Company's expenditures are based in
part on the Company's expectations  as to future revenue  levels and to a  large
extent  are fixed in the  short term. If revenues  do not meet expectations, the
Company's business,  financial  condition and  results  of operations  could  be
materially  adversely  affected.  The  Company believes  that  period  to period
comparisons of its operating results  are not necessarily meaningful and  should
not  be relied  upon as indications  of future  performance. As a  result of the
foregoing factors,  it is  likely  that in  some  future quarter  the  Company's
revenue  or operating  results will be  below the expectations  of public market
analysts and investors. In such event,  the price of the Company's Common  Stock
could be materially adversely affected.
 
    Additionally,  if specified  earnings per  share or  stock price performance
thresholds are met during 1997, contingencies will be satisfied with respect  to
940,955  shares of Common Stock and warrants to purchase 63,472 shares of Common
Stock issued in connection with  the merger of AccuMed,  Inc. with and into  the
Company  (the "Merger")  and an amount  equal to  the fair market  value of such
securities at the date on which such contingencies are satisfied is expected  to
be  recorded as goodwill  and amortized over  ten years. Under  the terms of the
Agreement  and   Plan  of   Reorganization   (the  "Merger   Agreement"),   such
contingencies  will  be satisfied  if,  during 1997,  (i)  earnings, on  a fully
diluted basis, exceed $0.03, per share of  Common Stock or (ii) the fair  market
value  of the Common Stock equals or exceeds  $2.50 per share for a period of 45
consecutive trading days. Furthermore, the Company has entered into a letter  of
intent  to acquire a two-thirds equity interest in Oncometrics for approximately
$4.0 million in cash. It is expected  that the allocation of the purchase  price
will  include  approximately $1.6  million of  acquired in-process  research and
development  and  approximately  $1.1  million  of  purchased  technology.   The
purchased  technology is expected to be  amortized over the expected useful life
of such technology,  currently anticipated to  be ten years,  with the  acquired
in-process  research  and  development expensed  in  the  Company's consolidated
statement of operations as a non-cash charge against operations in the period of
acquisition. The Company  is negotiating  to acquire  the remaining  outstanding
shares  of  Common  Stock  of  RADCO for  approximately  $1.4  million  in cash.
Approximately $630,000 of  the purchase  price is  expected to  be allocated  to
acquired in-process research and development and charged
 
                                       13
<PAGE>
against  operations in the Company's consolidated statement of operations in the
period of acquisition. In addition, if the Company determines in accordance with
its existing accounting policy that the undiscounted future operating cash flows
from its operations  are insufficient  to support  the aggregate  amount of  its
unamortized  goodwill, the  Company will  be required  to reflect  an impairment
charge in the amount  of unrecoverable goodwill  against then current  earnings.
See  "Management's Discussion and Analysis of Financial Condition and Results of
Operations" and Pro Forma Condensed Combining Financial Statements.
 
    SIGNIFICANT CAPITAL REQUIREMENTS;  DEPENDENCE ON PROCEEDS  OF THE  OFFERING;
POSSIBLE NEED FOR ADDITIONAL CAPITAL.  The Company intends to expend substantial
funds   for  research   and  product  development,   scale-up  of  cytopathology
manufacturing capacity, reduction  of accounts  payable, possible  acquisitions,
and  other working capital and general  corporate purposes. Although the Company
believes that the net proceeds of the Offering, together with interest  thereon,
existing  cash balances  and internally  generated funds  will be  sufficient to
finance the  Company's projected  operations through  at least  the next  twelve
months, there can be no assurance to that effect. The Company's future liquidity
and  capital requirements will depend upon numerous factors, including the costs
and timing of expansion of manufacturing capacity, the costs, timing and success
of the Company's product development efforts, the costs and timing of  potential
acquisitions,  the extent to which the  Company's existing and new products gain
market acceptance, competing technological and market developments, the progress
of commercialization  efforts by  the Company  and its  distributors, the  costs
involved in preparing, filing, prosecuting, maintaining, enforcing and defending
patent  claims and other  intellectual property rights,  developments related to
regulatory  and  third  party  reimbursement  matters  and  Clinical  Laboratory
Improvement  Amendments  of  1988  ("CLIA"), and  other  factors.  If additional
financing is needed,  the Company  may seek  to raise  additional funds  through
public or private financings, collaborative relationships or other arrangements.
The  Company currently has no commitments  with respect to sources of additional
financing, and there  can be no  assurance that any  such financing sources,  if
needed,  would  be available  to  the Company  or  that adequate  funds  for the
Company's operations, whether  from the Company's  revenues, financial  markets,
collaborative  or  other  arrangements  with corporate  partners  or  from other
sources, will be available when needed or on terms satisfactory to the  Company.
The  failure of the Company to  obtain adequate additional financing may require
the Company to  delay, curtail or  scale back some  or all of  its research  and
development  programs,  sales and  marketing efforts,  manufacturing operations,
clinical studies  and  regulatory  activities and,  potentially,  to  cease  its
operations.  Any additional equity financing may involve substantial dilution to
the Company's then-existing stockholders. See "Use of Proceeds."
 
    NEED TO  MANAGE EXPANDING  OPERATIONS.   If  the  Company is  successful  in
achieving   market  acceptance  for  its  current  products  or  products  under
development, the Company will be required to expand its operations, particularly
in the  areas of  sales and  marketing and  manufacturing. Such  expansion  will
likely result in new and increased responsibilities for management personnel and
place  significant strain upon the Company's management, operating and financial
systems and resources. To accommodate  any such growth and compete  effectively,
the Company may be required to implement and/or improve its information systems,
procedures  and controls,  and to  expand, train,  motivate and  manage its work
force. The Company's future success will  depend to a significant extent on  the
ability  of its current and future  management personnel to operate effectively,
both independently and as a group. There can be no assurance that the  Company's
personnel,  systems, procedures  and controls  will be  adequate to  support the
Company's future operations. Any failure to implement and improve the  Company's
operational,  financial and management systems or  to expand, train, motivate or
manage employees as  required by future  growth, if any,  could have a  material
adverse  effect on  the Company's business,  financial condition  and results of
operations.
 
    RISK OF LITIGATION;  RISK OF  PRODUCT RECALLS;  POTENTIAL UNAVAILABILITY  OF
INSURANCE.   Commercial screening of Pap  smear tests have been characterized by
significant malpractice  litigation. The  Company faces  a risk  of exposure  to
product liability, errors and omissions or other claims if the use of its AcCell
Series  2000 or any  future potential products, including  the TracCell 2000, if
approved for marketing, is
 
                                       14
<PAGE>
alleged to have contributed to or resulted in a false negative diagnosis.  While
neither  the AcCell  Series 2000  nor the  TracCell 2000  purports to  offer any
clinical diagnosis,  there can  be  no assurance  that  the Company  will  avoid
significant  litigation. The Company also faces  the possibility that defects in
designs or manufacture of its products could result in product recall.
 
    The  Company  currently  maintains  a  product  liability  insurance  policy
providing  maximum coverage  of $10 million  and per occurrence  coverage of $10
million. The  medical  device industry  in  general has  experienced  increasing
difficulty  in obtaining and maintaining  reasonable product liability coverage,
and substantial increases in insurance premium costs in many cases have rendered
coverage economically impractical. There can be no assurance that the  Company's
existing  product  liability  insurance  will  be  adequate  or  continue  to be
available, or that additional product  liability insurance will be available  to
the  Company  when needed  or at  a  reasonable cost.  An inability  to maintain
insurance at acceptable  costs or  otherwise protect  against potential  product
liability  could  prevent  or  inhibit the  continued  commercialization  of the
Company's products. In addition, a product liability claim in excess of relevant
insurance coverage or a product recall  could have a material adverse effect  on
the Company's business, financial condition and results of operations.
 
    ENVIRONMENTAL  REGULATION.   The Company is  subject to a  variety of local,
state, federal  and  foreign government  regulations  relating to  the  storage,
discharge,  handling, emission,  generation, manufacture and  disposal of toxic,
infectious and  other hazardous  substances used  to manufacture  the  Company's
products.  The failure to comply with current or future regulations could result
in the  imposition  of substantial  fines  against the  Company,  suspension  of
production,   alteration  of   its  manufacturing  processes   or  cessation  of
operations. There can be no assurance that  the Company will not be required  to
incur  significant costs  to comply  with any such  laws and  regulations in the
future, or that such laws or regulations will not have a material adverse effect
on the Company's business,  financial condition and  results of operations.  Any
failure  by the Company to control the  use, disposal, removal or storage of, or
to adequately restrict the discharge of, or assist in the cleanup of,  hazardous
chemicals or hazardous, infectious or toxic substances could subject the Company
to  significant liabilities, including joint and several liability under certain
statutes. The  imposition of  such  liabilities could  have a  material  adverse
effect on the Company's business, financial condition and results of operations.
 
    UNCERTAINTY OF PROFITABLE CYTOPATHOLOGY MANUFACTURING.  The Company has only
recently  developed the AcCell Series 2000 and marketing and sales of the AcCell
Series 2000 have only recently begun.  The Company is also currently  developing
the  manufacturing processes  for the TracCell  2000. There can  be no assurance
that the Company will be able to  sell sufficient numbers of systems or  develop
volume  manufacturing processes that will lead to the cost-effective manufacture
of the AcCell  Series 2000  or the  TracCell 2000.  The Company  also faces  the
possibility  that defects in designs or manufacture of its products could result
in product recall. See "Business -- Manufacturing."
 
    DEPENDENCE ON SUPPLIERS.  Certain key  components and raw materials used  in
the  manufacturing of the Company's products  are currently obtained from single
vendors. Although  the  Company  believes  that  alternative  sources  for  such
components  and  raw  materials  are available,  any  supply  interruption  in a
single-sourced component or raw material would have a material adverse effect on
the Company's ability to manufacture products until a new source of supply  were
qualified.  There can be  no assurance that  the Company would  be successful in
qualifying additional sources on a timely basis, if ever. Failure to do so would
have a material adverse  effect on the  Company's business, financial  condition
and  results of operations.  In addition, an  uncorrected impurity or supplier's
variation in a raw material, either unknown to the Company or incompatible  with
the Company's manufacturing process, could have a material adverse effect on the
Company's  ability  to manufacture  certain of  its  products. See  "Business --
Manufacturing."
 
    IMPACT OF MEDICARE, MEDICAID  AND OTHER THIRD PARTY  REIMBURSEMENT.  In  the
United  States, some Pap smear tests and  MIC/ID tests are currently paid for by
the patient directly, and the level of reimbursement by third party payors  that
do provide reimbursement varies considerably. Third party
 
                                       15
<PAGE>
payors  (Medicare/Medicaid,  private  health  insurance,  health  administration
authorities in foreign countries and other organizations) may affect the demand,
pricing or relative  attractiveness of  the Company's products  and services  by
regulating  the  frequency and  maximum amount  of  reimbursement for  Pap smear
testing and  MIC/ID testing  provided by  such payors  or by  not providing  any
reimbursement  at all. Restrictions  on reimbursement for  Pap smear testing and
MIC/ID testing may limit the price that the Company can charge for its  products
or  reduce  the demand  for them.  In  addition, if  the level  of reimbursement
provided by Medicare and Medicaid is significantly below the amount laboratories
and hospitals charge patients to perform  Pap smear testing and MIC/ID  testing,
respectively,  the size of the potential market  available to the Company may be
reduced. There can be no assurance that the level of reimbursement for Pap smear
testing and MIC/ID testing will achieve,  or be maintained at, levels  necessary
to permit the Company to generate substantial revenues or be profitable.
 
    In  the international market,  reimbursement by private  third party medical
insurance providers, including governmental insurers and providers, varies  from
country  to  country. In  certain countries,  the  Company's ability  to achieve
significant market penetration may depend  upon the availability of third  party
or governmental reimbursement.
 
    UNCERTAINTY AND POSSIBLE NEGATIVE EFFECTS OF HEALTH CARE REFORM.  The health
care  industry  is  undergoing  fundamental  changes  that  are  the  result  of
political,  economic   and  regulatory   influences.  In   the  United   States,
comprehensive programs have been proposed that seek to control the escalation of
health care expenditures within the economy. Reforms that have been, and may be,
considered  include controls on health care  spending through limitations on the
increase  in  private  health  insurance  premiums  and  Medicare  and  Medicaid
spending,   the  creation  of  large   insurance  purchasing  groups  and  other
fundamental changes  to the  health  care delivery  system. Health  care  reform
could,  for example, result in  a reduction in the  recommended frequency of Pap
smear testing  or limitations  on reimbursement  which would  likely reduce  the
demand for the Company's cytopathology products. Demand for the Company's MIC/ID
products  could be similarly affected. The Company anticipates that Congress and
state legislatures will continue to review and assess cost containment measures,
alternative health care delivery systems and methods of payment, and that public
debate of these issues will likely continue. Due to uncertainties regarding  the
outcome   of   health  care   reform   initiatives  and   their   enactment  and
implementation, the  Company cannot  predict what  reforms will  be proposed  or
adopted  or the  effect that such  proposals or  their adoption may  have on the
Company. There can be no assurance that future health care legislation or  other
changes  in the  administration or interpretation  of government  health care or
third party reimbursement programs  will not have a  material adverse effect  on
the Company's business, financial condition and results of operations.
 
    INTERNATIONAL  SALES AND OPERATIONS  RISKS.  The  Company sells microbiology
products and  intends to  sell  its cytopathology  and  any future  products  to
customers   both  domestically  and  internationally.  International  sales  and
operations may be limited or disrupted by the imposition of government controls,
export license requirements, political instability, trade restrictions,  changes
in  tariffs or difficulties  in staffing and  managing international operations.
Foreign regulatory  agencies often  establish product  standards different  from
those  in  the United  States  and any  inability  to obtain  foreign regulatory
approvals on  a  timely  basis could  have  a  material adverse  effect  on  the
Company's   international  business  operations.   Additionally,  the  Company's
business, financial  condition  and  results  of  operations  may  be  adversely
affected  by  increases in  duty rates  and  difficulties in  obtaining required
licenses and permits. There can be no assurance that the Company will be able to
successfully commercialize its products, or any future products, in any  foreign
market.
 
    POSSIBLE  VOLATILITY OF STOCK PRICE.  The  market price of the shares of the
Company's Common Stock,  like that  of the common  stock of  many other  medical
products  and high technology companies, has in  the past been, and is likely in
the future to continue to be,  highly volatile. Factors such as fluctuations  in
the  Company's operating results, announcements  of technological innovations or
new commercial products  by the Company  or competitors, government  regulation,
changes  in  the current  structure  of the  health  care financing  and payment
systems, developments  in  or disputes  regarding  patent or  other  proprietary
rights,  economic and other  external factors and  general market conditions may
have a
 
                                       16
<PAGE>
significant effect on the market price of the Common Stock. Moreover, the  stock
market  has from time to time  experienced extreme price and volume fluctuations
which have particularly affected the market prices for medical products and high
technology companies  and  which have  often  been unrelated  to  the  operating
performance  of  such companies.  These broad  market  fluctuations, as  well as
general economic,  political and  market conditions,  may adversely  affect  the
market  price of the Company's  Common Stock. In the  past, following periods of
volatility in the  market price of  a company's common  stock, securities  class
action  litigations have occurred  against the issuing company.  There can be no
assurance that such litigation will not occur in the future with respect to  the
Company.  Such litigation  could result  in substantial  costs and  diversion of
management's attention and resources, which could have a material adverse effect
on the Company's business,  financial condition and  results of operations.  Any
adverse  determination  in such  litigation could  also  subject the  Company to
significant liabilities.
 
    LACK OF DIVIDENDS.  The  Company has never paid  cash or other dividends  on
its Common Stock and does not anticipate paying any cash dividends on its Common
Stock in the foreseeable future. See "Dividend Policy."
 
    AUTHORIZATION   AND   POTENTIAL  ISSUANCE   OF  PREFERRED   STOCK;  DELAWARE
ANTI-TAKEOVER LAW.   The Company's Certificate  of Incorporation authorizes  the
issuance  of preferred stock  with such designations,  rights and preferences as
may be determined from time to time by the Board of Directors. Accordingly,  the
Board  of  Directors  is  empowered,  without  stockholder  approval,  to  issue
preferred stock with dividend, liquidation,  conversion, voting or other  rights
which  could adversely affect the voting power or other rights of the holders of
the Company's Common Stock.  Although the Company does  not currently intend  to
issue  any shares of its preferred stock,  in the event of issuance, such shares
could be utilized,  under certain  circumstances, as a  method of  discouraging,
delaying  or preventing  a change  in control  of the  Company. There  can be no
assurance that the Company will  not, under certain circumstances, issue  shares
of  its preferred stock. Furthermore, the Company  may in the future adopt other
measures that may have the effect of delaying, deferring or preventing a  change
in  control of the Company. Certain of  such measures may be adopted without any
further vote or action by the stockholders, although the Company has no  present
plans  to adopt any such measures. The  Company is also afforded the protections
of Section 203  of the Delaware  General Corporation Law,  which could delay  or
prevent  a change in control  of the Company, impede  a merger, consolidation or
other business  combination  involving the  Company  or discourage  a  potential
acquiror from making a tender offer or otherwise attempting to obtain control of
the  Company.  See  "Description  of  Capital  Stock  --  Preferred  Stock"  and
"Description of Capital Stock -- Delaware Anti-Takeover Law.
 
    IMMEDIATE   AND    SUBSTANTIAL    DILUTION;   OUTSTANDING    WARRANTS    AND
OPTIONS.   Because the offering price will be substantially higher than the book
value per share of the Common Stock, purchasers of shares of Common Stock in the
Offering will incur immediate and  substantial dilution. In addition,  investors
purchasing  shares in the Offering will  incur additional dilution to the extent
outstanding stock options and warrants are exercised. See "Dilution."
 
    SHARES ELIGIBLE FOR  FUTURE SALE.   Sales of substantial  amounts of  Common
Stock  in the public market after the Offering, or the possibility of such sales
occurring, could adversely affect prevailing market prices for the Common  Stock
or  the future ability  of the Company  to raise capital  through an offering of
equity securities.  Upon  completion of  the  Offering, the  Company  will  have
outstanding 21,973,333 shares of Common Stock (based on shares outstanding as of
July  19,  1996 and  assuming no  exercise  of the  Underwriters' over-allotment
option). In  addition  to the  4,750,000  shares to  be  sold in  the  Offering,
8,611,616  shares have  been sold  or are  available for  immediate sale  in the
public market pursuant to effective  registration statements or exemptions  from
registration  under  the Securities  Act of  1933,  as amended  (the "Securities
Act"), subject  in  some  cases  to  certain  restrictions  on  shares  held  by
"affiliates"  of the  Company, as  that term  is defined  in Rule  144 under the
Securities Act. An additional 2,074,868 shares of Common Stock that were  issued
in  connection with the Merger will become  available for sale on June 30, 1997,
upon the expiration of certain restrictions  placed on such shares and  assuming
the Company meets certain earnings per share or stock price targets with respect
to 429,938 of such shares currently subject to forfeiture. Pursuant to the terms
of a development agreement between the Company
 
                                       17
<PAGE>
and  a stockholder,  116,000 shares  of Common  Stock are  being held  in escrow
pending the achievement  by such  stockholder of certain  performance goals  and
would  be immediately available for sale upon  the achievement of such goals. An
additional 25,000  shares are  restricted securities  that can  be sold  in  the
public  market only if they  are registered or if  they qualify for an exemption
from registration under the Securities  Act. Holders of the remaining  6,395,849
shares,  including the Selling  Stockholders and all  of the Company's executive
officers and directors, have agreed to enter into so-called "lock-up" agreements
with Vector Securities International, Inc.  and Tucker Anthony Incorporated,  as
representatives  (the "Representatives") of the Underwriters. In accordance with
such lock-up agreements, an aggregate of 1,162,917 shares will become  available
for  sale  in  the public  market  commencing 91  days  after the  date  of this
Prospectus, 1,162,913 shares will become available for sale in the public market
commencing 181 days after the date of this Prospectus and 4,070,019 shares  will
become  available for sale  in the public  market commencing 271  days after the
date of this Prospectus, subject in some cases to certain restrictions on  sales
by  affiliates and assuming that the Company meets certain earnings per share or
stock price targets with respect to 511,017 of such shares currently subject  to
forfeiture.  The Representatives may,  in their sole discretion  and at any time
without notice, release all or any portion of the shares subject to such lock-up
agreements. Any shares  that are so  released may  be eligible for  sale in  the
public  market immediately thereafter, subject  in certain cases to restrictions
on shares held  by affiliates. The  Company has  also agreed that  it will  not,
without  the  prior  written  consent of  the  Representatives,  offer,  sell or
otherwise dispose of any shares of Common Stock, options or warrants to  acquire
shares of Common Stock or securities exchangeable for or convertible into shares
of  Common Stock for a period of one  year following the date of this Prospectus
other than  pursuant to  existing stock  option plans  or upon  the exercise  of
outstanding  warrants.  The Company  has  registered the  issuance  of 1,823,040
shares  of  Common  Stock  issuable  upon  the  exercise  of  options  currently
outstanding  or available to  be granted pursuant to  the Company's stock option
plans. Such shares  are available  for immediate sale  in the  open market  upon
exercise  of the  options, subject  in certain  circumstances to  limitations on
resale by affiliates of  the Company. Holders of  approximately 707,000 of  such
options  have  agreed to  execute  lock-up agreements  with  the Representatives
restricting the sale of such shares in the public market for a period of 90 days
with respect to 169,000 shares, 180 days with respect to 169,000 shares and  270
days  with  respect to  369,000 shares.  The  Company has  currently outstanding
warrants to purchase 6,007,805 shares of  Common Stock. Of such shares,  480,402
shares  are being sold  in the Offering and  approximately 4,814,628 shares have
been registered  for  sale  under  the Securities  Act  and  are  available  for
immediate  sale in the public  market upon exercise of  the warrants, subject in
some  cases  to  certain  restrictions  on  sales  by  affiliates.  Holders   of
approximately  2,712,000  of  such  warrants  have  agreed  to  execute  lock-up
agreements with the  Representatives restricting the  sale of shares  underlying
such  warrants in  the public  market for a  period of  90 days  with respect to
904,000 shares,  180 days  with respect  to  904,000 shares  and 270  days  with
respect   to   904,000  shares.   See   "Description  of   Capital   Stock"  and
"Underwriting."
 
                                       18
<PAGE>
                                  THE COMPANY
 
    The Company  was incorporated  in California  in June  1988 under  the  name
Alamar  Biosciences,  Inc.  From  its  inception,  the  Company  was  engaged in
developing,  manufacturing  and   marketing  microbiology  products   including,
alamarBlue  and diagnostic  test kits under  the name Alamar.  AccuMed, Inc. was
incorporated in Illinois in November  1994 to acquire products and  technologies
in  the fields  of cytology and  microbiology. Effective  January 1995, AccuMed,
Inc. acquired  Sensititre  as a  wholly-owned  subsidiary and  acquired  certain
assets   relating  to  Sensititre  products  in   the  United  States  from  the
microbiology division of  Radiometer America, Inc.  Sensititre has been  renamed
AccuMed  International Limited and is currently a wholly-owned subsidiary of the
Company. In April 1995,  the Company and AccuMed,  Inc. entered into the  Merger
Agreement  providing for the  merger of AccuMed, Inc.  into the Company. Pending
consummation of the Merger, the Company's facilities in California were  closed,
its  manufacturing, sales, marketing and research and development functions were
conducted under contract by AccuMed, Inc.  and its executive offices were  moved
to  Chicago, Illinois. The Merger was consummated on December 29, 1995, at which
time the  surviving company  was  renamed AccuMed  International, Inc.  and  was
reincorporated  under Delaware law.  The Company commenced  sales of its initial
cytopathology product, the AcCell Series 2000,  at the end of the first  quarter
of   1996.  The  Company  has  recently  discontinued  manufacturing  of  Alamar
microbiology products, except  for alamarBlue. The  Company is headquartered  in
Chicago,  Illinois  with  additional  facilities  in  Westlake,  Ohio  and  East
Grinstead, Sussex, England.
 
                                       19
<PAGE>
                                USE OF PROCEEDS
 
    The  net proceeds to  the Company from  the sale of  the 2,750,000 shares of
Common Stock offered  by the Company  hereby are estimated  to be $13.1  million
($16.7 million if the Underwriters' over-allotment option is exercised in full),
based  on  an assumed  offering price  of  $5.38 per  share and  after deducting
estimated  underwriting  discounts  and   commissions  and  estimated   offering
expenses.  The Company will also receive $754,000 in proceeds in connection with
the exercise of options and warrants  to acquire on aggregate of 604,797  shares
of Common Stock.
 
    Management  anticipates that up to $4.0 million of the net proceeds from the
Offering will be  used for  the research,  development, testing  and pursuit  of
regulatory   approval  for  new  cytopathology  product  offerings,  and  up  to
approximately $2.0 million will be used to scale-up manufacturing for the AcCell
Series 2000  and, if  cleared  for marketing,  the  TracCell 2000.  The  Company
intends  to use $4.0 million  of the net proceeds from  the Offering to fund the
proposed Oncometrics  Acquisition  and approximately  $1.4  million of  the  net
proceeds to fund the proposed RADCO Acquisition. The balance of the net proceeds
will be used for working capital and other general corporate purposes, including
up  to  $1.0 million  to  reduce accounts  payable.  A portion  of  the proceeds
allocated for working  capital and  general corporate  purposes may  be used  to
acquire  complementary businesses, products or  technologies, although there are
no current  agreements,  arrangements  or understandings  with  respect  to  any
material  acquisitions, other than as described in this Prospectus. Pending such
uses, the Company intends to invest such funds in short-term,  interest-bearing,
investment grade obligations.
 
    The  amounts  actually expended  for  each purpose  may  vary significantly,
depending on numerous  factors, including the  cost and timing  of expansion  of
manufacturing  capacity, the costs, timing and  success of the Company's product
development efforts, the costs and timing of potential acquisitions, the  extent
to  which  the  Company's  existing and  new  products  gain  market acceptance,
competing   technological   and   market    developments,   the   progress    of
commercialization  efforts  of  the  Company  and  its  distributors,  the costs
involved in preparing, filing, prosecuting, maintaining, enforcing and defending
patent claims and other intellectual  property rights, developments relating  to
regulatory and third party reimbursement matters and CLIA and other matters. The
Company  will not receive any  proceeds from the sale  of shares of Common Stock
offered by the Selling Stockholders.  See "Management's Discussion and  Analysis
of Financial Condition and Results of Operations," "Business -- Cytopathology --
Potential Acquisition of Interest in Oncometrics," "-- Microbiology -- Potential
Acquisition of RADCO" and "Principal and Selling Stockholders."
 
                                       20
<PAGE>
                          PRICE RANGE OF COMMON STOCK
 
    The  Company's Common Stock is quoted on  the Nasdaq Market under the symbol
"ACMI." The Company has applied for inclusion of the Common Stock on the  Nasdaq
National  Market under the  symbol "ACMI." On  July 23, 1996,  the last reported
sale price of the  Common Stock on  the Nasdaq Market was  $5.38 per share.  The
table  below sets forth,  for the periods  indicated, the range  of high and low
sales prices for the Common  Stock on the Nasdaq Market.  At July 23, 1996,  the
Company had approximately 260 stockholders of record.
 
<TABLE>
<CAPTION>
                                                                             HIGH        LOW
                                                                           ---------  ---------
<S>                                                                        <C>        <C>
1994 FISCAL YEAR
  First Quarter..........................................................  $    4.13  $    2.13
  Second Quarter.........................................................       3.00       1.75
  Third Quarter..........................................................       2.75       1.00
  Fourth Quarter.........................................................       2.63       1.25
 
1995 FISCAL YEAR
  First Quarter..........................................................  $    1.75  $    0.31
  Second Quarter.........................................................       1.75       0.50
  Third Quarter..........................................................       1.50       0.81
  Fourth Quarter.........................................................       1.50       0.75
 
TRANSITION PERIOD (1)
  October 1, 1995 through December 31, 1995..............................  $    1.69  $    1.00
 
1996 FISCAL YEAR (1)
  First Quarter..........................................................  $    6.25  $    1.06
  Second Quarter.........................................................       9.38       4.88
  Third Quarter (through July 23, 1996)..................................       7.00       5.13
</TABLE>
 
- --------------------------
(1)  On December 31, 1995, the Company changed its fiscal year from September 30
    to December 31.
 
                                DIVIDEND POLICY
 
    The Company has not paid any cash or other dividends on its Common Stock  to
date.  The  Company currently  intends  to retain  future  earnings, if  any, to
finance the  growth and  development of  its business  and does  not  anticipate
paying any cash dividends on its Common Stock in the foreseeable future.
 
                                       21
<PAGE>
                                 CAPITALIZATION
 
    The following table sets forth the short-term debt and capitalization of the
Company  (i) at  March 31,  1996, and (ii)  giving pro  forma effect  to (a) the
Oncometrics Acquisition for $4.0 million in cash, (b) the RADCO Acquisition  for
$1.4  million in  cash, (c)  the sale  of the  2,750,000 shares  of Common Stock
offered by the Company hereby at an  assumed offering price of $5.38 per  share,
after  deducting  estimated  underwriting  discounts  and  commissions  and  the
estimated expenses  of the  Offering, and  (d)  the receipt  by the  Company  of
$754,000  in connection with the exercise of options and warrants to purchase an
aggregate of  604,797 shares  of Common  Stock  to be  sold by  certain  Selling
Stockholders  in the Offering. This table should be read in conjunction with the
Consolidated Financial Statements  of the Company,  including the related  Notes
thereto  and the Pro  Forma Condensed Combining  Financial Statements, appearing
elsewhere in  this Prospectus.  See  also "Use  of  Proceeds" and  "Business  --
Cytopathology   --  Potential  Acquisition  of  Interest  in  Oncometrics,"  "--
Microbiology --  Potential  Acquisition of  RADCO"  and "Principal  and  Selling
Stockholders."
 
<TABLE>
<CAPTION>
                                                                                              MARCH 31, 1996
                                                                                          -----------------------
                                                                                                     PRO FORMA AS
                                                                                           ACTUAL      ADJUSTED
                                                                                          ---------  ------------
                                                                                              (IN THOUSANDS)
<S>                                                                                       <C>        <C>
Short-term debt, including current portion of long-term liabilities (1).................  $   1,039   $    1,046
Long-term liabilities, net of current portion (2).......................................         68          295
                                                                                          ---------  ------------
Minority interest.......................................................................         --          677
                                                                                          ---------  ------------
    Total debt..........................................................................      1,107        1,341
                                                                                          ---------  ------------
Stockholders' equity:
  Preferred Stock, $.01 par value: 5,000,000 shares authorized; no shares issued and
   outstanding (actual and pro forma as adjusted).......................................         --           --
  Common Stock, $.01 par value: 30,000,000 shares authorized; 16,605,034 shares issued
   and outstanding, actual; 19,959,831 shares issued and outstanding, pro forma as
   adjusted (3).........................................................................        166          199(4)
  Additional paid-in capital............................................................     30,273       44,126(4)
  Accumulated deficit...................................................................    (25,410)     (25,410)
                                                                                          ---------
    Total stockholders' equity..........................................................      5,029       18,915
                                                                                          ---------  ------------
      Total capitalization..............................................................  $   6,136   $   20,933
                                                                                          ---------  ------------
                                                                                          ---------  ------------
</TABLE>
 
- ------------------------
 
(1)  Includes notes payable and capital lease obligations due within one year.
 
(2) Includes long-term portion of capital lease obligations.
 
(3)  Based on the  number of shares outstanding  as of March  31, 1996, of which
    940,955 shares are subject to forefeiture if certain specified earnings  per
    share  or  stock  price  performance thresholds  are  not  met  during 1997.
    Excludes: (i) an aggregate  of 6,149,305 shares  reserved for issuance  upon
    exercise  of warrants outstanding at July  19, 1996 (of which 480,402 shares
    will be issued upon exercise prior  to the consummation of the Offering  and
    sold  in the Offering)  at exercise prices  ranging from $0.25  to $5.00 per
    share, with a weighted  average exercise price of  $3.21 per share; (ii)  an
    aggregate  of 1,812,918  shares reserved for  issuance upon  the exercise of
    stock options outstanding at July 19, 1996 (of which 124,395 shares will  be
    issued  upon exercise prior to consummation of  the Offering and sold in the
    Offering) at exercise prices ranging from  $0.63 to $8.38 per share, with  a
    weighted  average exercise price of $2.62  per share; and (iii) an aggregate
    of 476,631 shares reserved for  issuance upon exercise of options  available
    at  July 19, 1996 for  future grant under the  Company's stock option plans.
    See "Management -- Stock Option Plans" and Note 11 of Notes to  Consolidated
    Financial Statements.
 
(4)  Includes receipt of $754,000 in connection with the exercise of options and
    warrants to purchase an  aggregate of 604,797 shares  of Common Stock to  be
    sold by certain Selling Stockholders in the Offering.
 
                                       22
<PAGE>
                                    DILUTION
 
    The  pro forma net tangible book value of  the Company at March 31, 1996 was
negative approximately $2.8 million  or $(0.17) per share  of Common Stock.  Pro
forma  net tangible book value per share  represents the amount of the Company's
total pro forma  tangible net worth  (pro forma tangible  assets less total  pro
forma  liabilities), after giving effect to  the Oncometrics Acquisition and the
RADCO Acquisition, divided by 16,605,034, the  number of shares of Common  Stock
outstanding  at March 31, 1996. Without taking into account any other changes in
pro forma net  tangible book  value after  March 31,  1996, other  than to  give
effect  to the receipt  and application of  the estimated net  proceeds from the
sale of  the 2,750,000  shares of  Common Stock  offered by  the Company  at  an
assumed  offering price of $5.38  per share and the  issuance of an aggregate of
604,797 shares of Common Stock, upon exercise of warrants and options by certain
Selling Stockholders, to be sold in the Offering and the receipt by the  Company
of  $754,000 in connection therewith,  the pro forma net  tangible book value of
the Company as of March 31, 1996 would have been approximately $11.0 million  or
$0.56  per share of Common  Stock. This represents an  immediate increase in pro
forma net tangible book value of $0.73 per share to existing stockholders and an
immediate dilution in pro forma  net tangible book value  of $4.82 per share  to
new investors purchasing shares in the Offering. The following table illustrates
this per share dilution to new investors in the Offering:
 
<TABLE>
<CAPTION>
Assumed offering price per share....................................             $    5.38
<S>                                                                   <C>        <C>
  Pro forma net tangible book value per share at March 31, 1996.....  $   (0.17)
  Increase per share attributable to new investors..................       0.73
                                                                      ---------
Pro forma net tangible book value per share after the Offering......                  0.56
                                                                                 ---------
Dilution per share to new investors.................................             $    4.82
                                                                                 ---------
                                                                                 ---------
</TABLE>
 
    Excludes:  (i) an aggregate  of 6,007,805 shares  reserved for issuance upon
exercise of warrants outstanding at July 19, 1996 (of which 480,402 shares  will
be  issued upon exercise prior  to consummation of the  Offering and sold in the
Offering) at  exercise prices  ranging from  $0.25 to  $5.00 per  share, with  a
weighted  average  exercise  price of  $3.21  per  share; (ii)  an  aggregate of
1,812,918 shares  reserved  for issuance  upon  the exercise  of  stock  options
outstanding  at  July 19,  1996 (of  which  124,395 shares  will be  issued upon
exercise prior to  consummation of  the Offering and  sold in  the Offering)  at
exercise  prices ranging from $0.63 to $8.38  per share, with a weighted average
exercise price of  $2.62 per  share; and (iii)  an aggregate  of 476,631  shares
reserved  for issuance  upon exercise of  options available for  future grant at
July 19, 1996 under the Company's  stock option plans. See "Management --  Stock
Option Plans" and Note 11 of Notes to Consolidated Financial Statements.
 
                                       23
<PAGE>
                      SELECTED CONSOLIDATED FINANCIAL DATA
 
    The following Selected Consolidated Financial Data for the fiscal year ended
September  30, 1995 and for the three month transition period ended December 31,
1995 have been derived from the audited consolidated financial statements of the
Company as adjusted, where  indicated, to reflect  the Merger. The  Consolidated
Financial  Statements for  the fiscal  year ended  September 30,  1995 have been
audited by Coopers & Lybrand, L.L.P., independent certified public  accountants.
The  Consolidated  Financial Statements  for the  three month  transition period
ended December 31, 1995 have been audited by KPMG Peat Marwick LLP,  independent
certified  public accountants.  The information  presented for  the three months
ended March  31,  1996  is unaudited,  but,  in  the opinion  of  the  Company's
management,   all  adjustments  (consisting  of  normal  recurring  adjustments)
necessary for a fair presentation of  the information for such period have  been
made.  Results for interim periods are not necessarily indicative of the results
that may  be  expected for  the  full year.  The  following should  be  read  in
conjunction  with "Management's  Discussion and Analysis  of Financial Condition
and Results  of  Operations,"  and the  Consolidated  Financial  Statements  and
related Notes thereto and the Pro Forma Condensed Combining Financial Statements
included elsewhere in this Prospectus.
 
<TABLE>
<CAPTION>
                                                                                 THREE MONTH
                                                                                  TRANSITION
                                                          FISCAL YEAR ENDED      PERIOD ENDED          THREE MONTHS ENDED
                                                          SEPTEMBER 30, 1995  DECEMBER 31, 1995          MARCH 31, 1996
                                                          ------------------  ------------------  ----------------------------
                                                            PRO FORMA (1)       PRO FORMA (1)        ACTUAL      PRO FORMA (1)
                                                          ------------------  ------------------  -------------  -------------
                                                                         (IN THOUSANDS, EXCEPT PER SHARE DATA)
<S>                                                       <C>                 <C>                 <C>            <C>
STATEMENT OF OPERATIONS DATA:
  Sales.................................................      $    4,144          $    1,184        $   1,188      $   1,190
  Cost of sales.........................................          (3,674)             (1,183)            (595)          (597)
                                                                 -------             -------      -------------  -------------
  Gross profit (loss)...................................             470                   1             (593)           593
  Operating expenses....................................           7,526               7,058(2)         5,382(2)       5,603
                                                                 -------             -------      -------------  -------------
  Operating loss........................................          (7,056)             (7,060)          (4,789)        (5,010)
  Other income (expense)................................            (113)                (81)           2,141          2,141
  Provision for income taxes............................              (1)                 (1)              (1)            (1)
  Minority interest.....................................             430                  65           --                 75
  Net loss..............................................      $   (6,740)         $   (7,077)       $  (2,649)     $  (2,795)
                                                                 -------             -------      -------------  -------------
                                                                 -------             -------      -------------  -------------
  Net loss per common share.............................      $    (0.69)         $    (0.60)       $   (0.17)     $   (0.18)
                                                                 -------             -------      -------------  -------------
                                                                 -------             -------      -------------  -------------
  Weighted average common shares outstanding............           9,832               11,743           15,797         15,797
                                                                  -------             -------     -------------  -------------
                                                                  -------             -------     -------------  -------------
</TABLE>
 
<TABLE>
<CAPTION>
                                                                                                         MARCH 31, 1996
                                                                              DECEMBER 31, 1995   ----------------------------
                                                                              ------------------                  PRO FORMA
                                                                                    ACTUAL          ACTUAL     AS ADJUSTED (3)
                                                                              ------------------  -----------  ---------------
                                                                                               (IN THOUSANDS)
<S>                                                                           <C>                 <C>          <C>
BALANCE SHEET DATA:
  Working capital (deficit).................................................      $   (2,459)      $    (184)     $  11,128
  Total assets..............................................................           5,974           9,316         24,242
  Long-term liabilities, net of current portion (4).........................              90              68            295
  Total stockholders' equity................................................             729           5,029         18,915
</TABLE>
 
- --------------------------
(1)  Includes the operating  results of AccuMed,  Inc. and Oncometrics  on a pro
    forma basis assuming the Merger and the Oncometrics Acquisition occurred  on
    October  1,  1994.  See  "The Company"  and  Pro  Forma  Condensed Combining
    Financial Statements.
(2) Includes $4.0 million and $3.5 million for the three month transition period
    ended December  31,  1995  and  the  three  months  ended  March  31,  1996,
    respectively,  recorded as a non-cash  charge against operations relating to
    the write-off of in-process research and development acquired in  connection
    with the Merger.
(3)  Includes  the  net  assets  of  Oncometrics  and  RADCO  assuming  that the
    Oncometrics Acquisition  and the  RADCO Acquisition  occurred on  March  31,
    1996,  adjusted to reflect receipt and  application of the net proceeds from
    the sale of  the 2,750,000  shares of Common  Stock offered  by the  Company
    hereby  at an assumed offering  price of $5.38 per  share and the receipt of
 
                                       24
<PAGE>
    the proceeds to the Company of  $754,000 in connection with the exercise  of
    outstanding  stock options  and warrants, prior  to the  consummation of the
    Offering, to purchase an  aggregate of 604,797 shares  of Common Stock.  See
    "Use of Proceeds" and "Description of Capital Stock."
(4)  Long-term liabilities consists of capital lease obligations. See Note 13 to
    Notes to Consolidated Financial Statements.
 
                                       25
<PAGE>
                      MANAGEMENT'S DISCUSSION AND ANALYSIS
                OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS
 
    THIS   PROSPECTUS   CONTAINS,   IN  ADDITION   TO   HISTORICAL  INFORMATION,
FORWARD-LOOKING STATEMENTS THAT INVOLVE  RISKS AND UNCERTAINTIES. THE  COMPANY'S
ACTUAL  RESULTS COULD  DIFFER SIGNIFICANTLY  FROM THE  RESULTS DISCUSSED  IN THE
FORWARD-LOOKING STATEMENTS.  FACTORS  THAT COULD  CAUSE  OR CONTRIBUTE  TO  SUCH
DIFFERENCES INCLUDE THE FACTORS DISCUSSED BELOW AS WELL AS THE FACTORS DISCUSSED
IN  "RISK  FACTORS"  AND ELSEWHERE  IN  THIS PROSPECTUS.  SPECIAL  NOTE: CERTAIN
STATEMENTS SET FORTH  BELOW CONSTITUTE "FORWARD-LOOKING  STATEMENTS" WITHIN  THE
MEANING   OF  THE  REFORM  ACT.  SEE  "SPECIAL  NOTE  REGARDING  FORWARD-LOOKING
STATEMENTS" ON PAGE 2 FOR ADDITIONAL FACTORS RELATING TO SUCH STATEMENTS.
 
OVERVIEW
 
    Effective December 29,  1995, AccuMed,  Inc. was  merged with  and into  the
Company.  The  results of  operations  reflected in  the  Company's consolidated
statement of  operations  for the  quarter  ended  March 31,  1996  include  the
operations  of the  two merged  businesses, whereas  results of  operations from
prior periods  and  years  reflect  the  operations  and  sales  of  the  Alamar
microbiology  product line  only. The  historical results  of operations  of the
Company presented herein  are not  necessarily indicative of  future results  of
operations of the Company. See "The Company."
 
    The  Merger has been accounted for as  a purchase, which resulted in certain
charges. The value of the securities not subject to contingencies issued by  the
Company  upon  consummation  of the  Merger  exceeded  the value  of  the assets
acquired by $6.6 million. At December 31, 1995, $4.0 million of such amount  was
allocated  to  acquired  in-process  research and  development  and  written off
immediately as a non-cash charge against operations. The remaining $2.6  million
was  booked  as  purchased technology  and  is  being amortized  over  ten years
beginning December 31,  1995. Certain of  the securities issued  by the  Company
upon consummation of the Merger were subject to forfeiture if specified earnings
per  share or stock price  performance goals were not  met following the Merger.
During the quarter ended March 31,  1996, the contingencies were satisfied  with
respect  to a portion of such securities having a then current fair market value
of $5.4 million.  Of such  amount, $3.5 million  was allocated  to acquired  in-
process  research  and development  and written  off  immediately as  a non-cash
charge against operations. The  remaining $1.9 million  was booked as  purchased
technology  and is being amortized  over ten years beginning  March 31, 1996. If
specified contingencies applicable  to the  remaining 940,955  shares of  Common
Stock and warrants to purchase up to 63,473 shares of Common Stock issued in the
Merger  are met during  1997, an amount equal  to the fair  market value of such
securities at the  time such  contingencies are  satisfied will  be recorded  as
goodwill.  It is anticipated that such goodwill will be amortized over ten years
and that the Company will continue to assess the recoverability of such asset as
prescribed by the Company's  current accounting policies.  See "Risk Factors  --
Potential  Fluctuations  in Future  Quarterly Reports"  and Note  1 to  Notes to
Consolidated Financial Statements.
 
    Pending consummation  of the  Merger, the  Company took  various actions  to
streamline  and relocate its operations. The Company's manufacturing facility in
Sacramento, California was closed in August 1995, and all obligations under  its
lease  were satisfied during the  second quarter of 1996.  During the summer and
fall of 1995, the Company terminated the employment of all its employees,  other
than  two officers.  From July  1, 1995  until consummation  of the  Merger, the
Company's  manufacturing,  marketing,  sales,  distribution  and  research   and
development  functions were  performed by  AccuMed, Inc.  under contracts. After
consummation of  the  Merger,  the Company  resumed  research  and  development,
manufacturing and marketing and sales activities, and hired a significant number
of employees.
 
    At  March 31, 1996, the Company had an accumulated deficit of $25.4 million.
On December 31, 1995, the Company changed its fiscal year end from September  30
to December 31.
 
RESULTS OF OPERATIONS
 
  THREE MONTHS ENDED MARCH 31, 1996 AND 1995
 
    Revenues  from sales for the quarter ended  March 31, 1996 increased to $1.2
million compared to $172,000 for the quarter ended March 31, 1995, primarily due
to the inclusion  of sales of  the Sensititre product  line as a  result of  the
acquisition  of  the  Sensititre  business  at the  end  of  1995.  Other income
 
                                       25
<PAGE>
increased by $2.4  million in the  1996 quarter principally  due to payments  of
$3.5 million from Becton, Dickinson and Company ("Becton") pursuant to a license
agreement. At December 31, 1995, $1.4 million of such payments had been recorded
as deferred revenues pending the resolution of subsequently resolved litigation.
Offsetting  such income was $954,000 of expense during the 1996 quarter recorded
as a non-cash charge representing the  fair market value of warrants issued.  Of
such  amount, (i) $852,000 is attributable  to warrants to purchase an aggregate
of 687,500 shares  of Common Stock,  with a weighted  average exercise price  of
$3.73   per  share,  issued   to  investors  in   connection  with  the  initial
capitalization of  RADCO,  and (ii)  $102,000  is attributable  to  warrants  to
purchase an aggregate of 100,000 shares of Common Stock, at an exercise price of
$1.25  per share, issued in  consideration of a loan  to the Company of $250,000
from the warrantholder.
 
    Cost of sales increased from $219,000 in the 1995 quarter to $595,000 in the
1996 quarter due  to the additional  cost of sales  of the microbiology  product
line  and  initial cytopathology  instrument  sales. General  and administrative
expenses increased from  $275,000 in the  1995 quarter to  $914,000 in the  1996
quarter,  primarily due to (i) recognition  of a non-cash charge attributable to
the issuance of warrants  to purchase an aggregate  of 100,000 shares of  Common
Stock  at an exercise price  of $2.125 per share  as compensation for consulting
services, (ii) costs of consolidating staff and relocating operations, and (iii)
increased  investor  relations  efforts.   Research  and  development   expenses
increased  from $69,000 in the 1995 quarter to $4.0 million in the 1996 quarter.
The increase in the 1996 quarter was primarily due to a non-cash charge  against
operations of $3.5 million representing the write-off of in-process research and
development  acquired in connection with the  Merger, and resumption of research
and development activities  following the Merger.  Sales and marketing  expenses
increased  from $28,000 in the 1995 quarter to $393,000 in the 1996 quarter, due
to reinstatement  of  domestic  sales  and  marketing  efforts  which  had  been
suspended during the prior quarter.
 
    Net  loss increased from $431,000  for the 1995 quarter  to $2.6 million for
the  1996  quarter,  primarily  attributable  to  the  non-cash  charge  against
operations  relating to the write-off of in-process research and development and
the fair value of warrants  issued, as described above.  The net loss per  share
for  the 1996  quarter was  $0.17 compared  to $0.09  for the  1995 quarter. The
increased net loss was somewhat diluted  by an increase in the weighted  average
shares outstanding.
 
    The  Company's accounts  payable were $2.5  million in the  1996 quarter, an
increase of $500,000 from the 1995 quarter  due primarily to an increase in  raw
materials and inventories acquired to support sales of the AcCell Series 2000.
 
  THREE MONTHS ENDED DECEMBER 31, 1995 AND 1994
 
    The  three months ended  December 31, 1995  represents the transition period
resulting from the change in the Company's fiscal year end from September 30  to
December  31.  While  revenues  remained  virtually  unchanged,  cost  of  sales
increased from $227,000  in the 1994  quarter to $339,000  in the 1995  quarter.
General  and administrative costs  increased substantially from  $384,000 in the
1994 quarter to $1.4  million in the  1995 quarter, primarily  due to (i)  legal
expenses   related  to  subsequently  resolved   litigation,  (ii)  expenses  of
relocating the Company's operations, and (iii) payments to AccuMed, Inc. for its
services pursuant to  manufacturing, distribution and  research and  development
agreements pending consummation of the Merger. Research and development expenses
increased from $151,000 in the 1994 quarter to $4.0 million in the 1995 quarter,
due  to a  non-cash charge  against operations  relating almost  entirely to the
write-off of in-process research and development acquired in connection with the
Merger. Sales and marketing expenses decreased from $171,000 in the 1994 quarter
to $7,000  in the  1995 quarter,  as  the sales  and marketing  activities  were
performed  by  AccuMed, Inc.  prior  to the  Merger  pursuant to  a distribution
agreement.
 
    The net loss increased  from $846,000 for the  1994 quarter to $5.7  million
for  the 1995  quarter. The increase  resulted primarily from  a non-cash charge
against  operations  relating  to  the  write-off  of  in-process  research  and
development acquired in connection with the Merger, and increased administrative
expense. The net loss per share for the 1995 quarter was $0.49 compared to $0.17
for the 1994 quarter.
 
                                       26
<PAGE>
  FISCAL YEARS ENDED SEPTEMBER 30, 1995, 1994 AND 1993
 
    Revenues  for the fiscal years ended September  30, 1995, 1994 and 1993 were
$515,000, $1.2  million  and $419,000,  respectively.  Revenues in  fiscal  1994
included  approximately  $473,000  of  international  instrument  shipments  and
$92,000 of contract  research, both of  which were absent  from the fiscal  1995
year  and account for the decrease in  revenues from fiscal 1994 to fiscal 1995.
During fiscal 1994, the Company had additional products available for sale  that
were in development during fiscal 1993. Cost of sales increased from $911,000 in
fiscal  1993  to $1.5  million in  fiscal  1994 and  decreased slightly  to $1.4
million in fiscal 1995. General  and administrative expenses increased  slightly
from  $1.1 million in fiscal 1993 to  $1.2 million in fiscal 1994, and increased
substantially to $2.1 million in fiscal  1995. The increase from fiscal 1994  to
fiscal  1995 was primarily due  to legal and accounting  expenses related to the
Merger and subsequently resolved  litigation. Research and development  expenses
decreased  from  $683,000 in  fiscal  1993 to  $580,000  in fiscal  1994  and to
$387,000 in fiscal 1995. Sales and marketing expenses decreased from $960,000 in
fiscal 1994 to $309,000 in  fiscal 1995, due to  suspension of virtually all  of
the Company's domestic sales and marketing efforts beginning in November 1994.
 
    The net loss for fiscal 1995 increased to $3.8 million from $3.1 million for
fiscal  1994  primarily  due  to  increased  legal  and  administrative expenses
associated with subsequently resolved litigation.  The net loss for fiscal  1994
was  virtually unchanged from fiscal  1993. The net loss  per share decreased to
$0.59 for fiscal 1995 from $0.65 for fiscal 1994 and from $1.00 for fiscal 1993,
primarily due to increases in the weighted average shares outstanding offset  in
part by a lower net loss in fiscal 1994 compared to fiscal 1995.
 
LIQUIDITY AND CAPITAL RESOURCES
 
    The  Company has been  substantially dependent on  the private placements of
its debt and equity securities and  the proceeds of its initial public  offering
of  securities consummated in  October 1992 to fund  its cash requirements. From
the initial  public offering  through March  31, 1996,  the Company  has  raised
approximately  $21.0 million in  aggregate net proceeds  from the initial public
offering  and  such  private  placements.  The  Company's  most  recent  private
placements  were closed in  May and June  1996, resulting in  the issuance of an
aggregate of 255,000 shares  of Common Stock for  net proceeds of  approximately
$1.4 million. During the second quarter of 1996, the Company expected to receive
$2.0  million in cash consideration for a debenture that was to have been issued
effective April 30, 1996; however, such consideration was not received and  such
debenture  was  not  issued. During  the  second  quarter of  1996,  the Company
received an aggregate of $477,000 upon the exercise of certain stock options and
an aggregate of $441,000 upon the exercise of certain warrants.
 
    In connection with the Company's initial public offering and certain private
placements, the Company issued  warrants to purchase  an aggregate of  2,702,905
shares  of Common  Stock (the "Redeemable  Warrants"). If the  closing price per
share of Common  Stock exceeds  $7.50 (subject to  adjustment) per  share for  a
minimum  of 20  consecutive trading  days, the Company  would have  the right to
redeem the Redeemable Warrants, upon  notice of not less  than 60 days given  to
holders  within three  days following  any such 20  day period,  at a redemption
price of  $0.25 per  underlying  share. The  exercise  price of  the  Redeemable
Warrants,  which expire October 1,  1997, is $5.00 per  share. If all Redeemable
Warrants were exercised, of which there  can be no assurance, the Company  would
receive  approximately  $13.5  million in  gross  proceeds. If  the  Offering is
completed, the  Company has  agreed  with the  Underwriters  not to  redeem  the
Redeemable  Warrants, without  the Representatives'  consent, prior  to one year
following the date of this Prospectus.
 
    Pursuant to  the License  Agreement  entered into  between the  Company  and
Becton  in October 1995 (the "License  Agreement"), Becton has a semi-exclusive,
worldwide license to the Company's alamarBlue technology for a specific field of
use. Becton was obligated to pay $3.5 million in cash for use of the technology,
of which $1.5  million was received  during 1995 and  $2.0 million was  received
during  the first quarter of  1996. Of such amount,  $500,000 will be creditable
against future royalty payments, if any.
 
                                       27
<PAGE>
Becton is  obligated to  pay the  Company  royalties on  net sales  of  products
incorporating  the technology licensed  under the License  Agreeement during its
five-year term. As of the date of  this Prospectus, there have been no sales  of
products incorporating such technology.
 
    At June 30, 1996, the Company had $2.1 million of accounts payable, of which
$1.7  million was past the respective original due dates. In late 1995 and early
1996, the  Company reached  agreements with  certain vendors  providing for  the
extended  repayment of amounts owed by the  Company to such vendors. At June 30,
1996, pursuant to  such agreements, approximately  $522,000 remained payable  by
the  Company  to  such vendors  in  scheduled monthly  installments  through the
remainder of 1996. Other  amounts owed to various  vendors and suppliers may  be
subject to late charges of up to 1.5% per month. The Company intends to apply up
to  $1.0 million  of the  net proceeds  of the  Offering to  the repayment  of a
portion of the accounts payable not subject to extended repayment agreements.
 
    The Company intends  to expend  substantial funds for  research and  product
development,   possible  acquisitions,   scale-up  of   manufacturing  capacity,
reduction of accounts payable  and other working  capital and general  corporate
purposes.  Although the Company believes that  the net proceeds of the Offering,
together with interest thereon, existing cash balances and internally  generated
funds  will be sufficient to finance  the Company's projected operations through
at least the next twelve months, there  can be no assurance to that effect.  The
Company's  future liquidity and  capital requirements will  depend upon numerous
factors, including the costs and timing of expansion of manufacturing  capacity,
the  costs, timing and success of the Company's product development efforts, the
costs and timing of  potential acquisitions, the extent  to which the  Company's
existing  and new products  gain market acceptance,  competing technological and
market developments, the  progress of commercialization  efforts of the  Company
and  its  distributors, the  costs involved  in preparing,  filing, prosecuting,
maintaining, enforcing  and  defending  patent  claims  and  other  intellectual
property   rights,   developments  related   to   regulatory  and   third  party
reimbursement matters and CLIA,  and other factors.  If additional financing  is
needed, the Company may seek to raise additional funds through public or private
financings, collaborative relationships or other arrangements.
 
    The  Company  currently  has  no  commitments  with  respect  to  sources of
additional financing, and  there can  be no  assurance that  any such  financing
sources, if needed, would be available to the Company or that adequate funds for
the  Company's  operations,  whether  from  the  Company's  revenues,  financial
markets, collaborative or  other arrangements  with corporate  partners or  from
other  sources, will be  available when needed  or on terms  satisfactory to the
Company. The failure of the Company to obtain adequate additional financing  may
require  the Company to delay, curtail or scale back some or all of its research
and development programs, sales and marketing efforts, manufacturing operations,
clinical studies  and  regulatory  activities and,  potentially,  to  cease  its
operations.  Any additional equity financing may involve substantial dilution to
the Company's  then-existing stockholders.  See "Use  of Proceeds"  and the  Pro
Forma  Condensed Combining  Financial Statements and  the Consolidated Financial
Statements and Notes thereto included elsewhere in this Prospectus.
 
POTENTIAL IMPACT OF ACQUISITION OF INTEREST IN ONCOMETRICS
 
    The  Company  intends  to  acquire  a  two-thirds  equity  interest,  on   a
fully-diluted  basis, in  Oncometrics for  aggregate cash  consideration of $4.0
million. Of  such  consideration, $2.0  million  would  be paid  to  Xillix  for
currently  outstanding  Oncometrics stock,  and $2.0  million  would be  paid to
Oncometrics for  newly issued  Oncometrics stock.  It is  anticipated that  such
transaction  would be  accounted for  under the  purchase method  of accounting,
resulting in  approximately $1.6  million of  acquired in-process  research  and
development  and  approximately $1.1  million  of purchased  technology. Amounts
recorded as acquired in-process research and development would be written off as
a charge to earnings in the period of acquisition. Amounts recorded as purchased
technology would be amortized over the expected useful life of such  technology,
currently anticipated to be ten years. Furthermore, at May 31, 1996, Oncometrics
had  approximately  $234,000  in  long-term,  third  party  debt,  including the
 
                                       28
<PAGE>
current portion  of  long-term debt,  which  the  Company would  assume  if  the
Oncometrtics  Acquisition is consummated. See "Use of Proceeds" and "Business --
Cytopathology -- Potential Acquisition of Interest in Oncometrics" and Pro Forma
Condensed Combining Financial Statements.
 
POTENTIAL IMPACT OF ACQUISITION OF RADCO
 
    The  Company  is  negotiating   to  acquire  common   stock  of  RADCO   and
approximately  $1.2 million in aggregate  principal amount of certain promissory
notes issued by RADCO in connection with the initial capitalization of RADCO for
an aggregate  purchase  price of  approximately  $1.4  million in  cash.  It  is
anticipated  that such  transaction would  be accounted  for under  the purchase
method of accounting, resulting in approximately $630,000 of acquired in-process
research and development. Such amount is expected to be written-off as a  charge
to  earnings in the period  of the RADCO Acquisition.  See "Use of Proceeds" and
"Business --  Microbiology --  Potential  Acquisition of  RADCO" and  Pro  Forma
Condensed Combining Financial Statements.
 
                                       29
<PAGE>
                                    BUSINESS
 
    AccuMed  designs, manufactures and markets diagnostic screening products for
clinical diagnostic  laboratories  serving the  cytopathology  and  microbiology
markets.  The Company's primary focus is on development and commercialization of
cytopathology products that support the review  and analysis of Pap smear  tests
in  order to  improve the  quality of  cell analysis  and increase  accuracy and
productivity in  the laboratory.  The  Company commenced  sales of  its  initial
cytopathology  product,  the AcCell  Series  2000 automated  slide  handling and
microscopy workstation, at the end of the first quarter of 1996. The Company  is
currently  testing a prototype specimen  mapping workstation, the TracCell 2000,
which automatically  pre-screens Pap  smears to  locate and  eliminate from  the
scope  of review empty space and certain non-clinically relevant portions of the
specimen. The Company expects to file a 510(k) Notification with the FDA for the
TracCell 2000 by  the end  of 1996.  The Company  has recently  entered into  an
agreement  with  Olympus  America,  a leading  supplier  of  microscopes  to the
cytopathology market,  pursuant to  which Olympus  America has  exclusive  third
party  distribution  rights  to  the AcCell  Series  2000  and,  if successfully
developed and cleared  for marketing  by the  FDA and  other applicable  foreign
regulatory authorities, TracCell 2000 in the Olympus Territory.
 
    The  Company  also develops,  manufactures and  markets IN  VITRO diagnostic
tests for the  clinical laboratory, veterinary  and pharmaceutical markets.  The
Company  offers the microbiology  laboratory a variety  of FDA-cleared products,
under the tradename Sensititre, for the MIC/ID testing of bacteria suspected  of
causing  infections and  for measuring  the susceptibility  of such  bacteria to
different  types  and  concentrations  of  antibiotics.  AccuMed's  microbiology
products  include disposable test kits and a range of automated instruments. The
Company also markets alamarBlue, a proprietary, non-toxic indicator reagent that
measures cell  growth  for  IN  VITRO testing.  The  Company  is  developing  an
automated  instrument  designed  to read  the  results of  a  Kirby-Bauer method
susceptibility test and, pursuant  to an agreement with  RADCO, is developing  a
microbiology  diagnostic panel and an automated reading instrument. There can be
no assurance that any of such products will be successfully developed.
 
    AccuMed's objective is to establish the AcCell Series 2000 and TracCell 2000
as the leading microscopy workstations for the primary screening and analysis of
cytology specimens while developing  new cytopathology and microbiology  product
offerings.  The key elements of the Company's strategy include: (i) establishing
the AcCell Series 2000 and, if cleared  for marketing, the TracCell 2000 in  the
worldwide Pap smear testing market through distribution agreements and strategic
alliances with major market participants, (ii) exploiting other applications for
the   Company's  cytopathology  technology  such   as  histology  and  pathology
laboratory work, (iii) continuing to  acquire, develop and enhance  technologies
that  complement the Company's existing technology base and (iv) integrating the
Company's proprietary microbiology technologies into new products.
 
CYTOPATHOLOGY
 
  CERVICAL CANCER SCREENING
 
    An estimated  440,000 new  cases of  cervical cancer  are reported  annually
worldwide.  The American  Cancer Society estimates  that, in 1996  in the United
States, 15,700 women will be diagnosed  with invasive cervical cancer and  4,900
women  will die of cervical cancer. However, virtually all cervical cancer cases
can  be  effectively  treated  with  timely  intervention  if  detected   early.
Furthermore,  in 1996, an estimated 65,000 American women will be diagnosed with
cervical carcinoma IN SITU, a precancerous condition. The treatment of  cervical
cancer  after it  reaches the invasive  stage, however, may  require surgery and
chemotherapy or radiation treatments, which are difficult, expensive and may  be
unsuccessful.  Cervical cancer is preceded  by curable precancerous lesions that
progress without symptoms  over a period  of years until  they become  invasive,
penetrating  the  cervical  epithelium  (cellular  covering)  and  entering  the
bloodstream or  lymph system.  In order  to detect  these precancerous  lesions,
gynecologists   in  the  United  States  typically  recommend  annual  screening
examinations for all women over the age  of 18. The Pap smear test is  currently
the  most widely-used screening test for  early detection of cervical cancer and
related precancerous conditions. Pap smear  tests are generally performed by  an
estimated  4,500 clinical laboratories in  the United States, including hospital
laboratories, commercial laboratories, reference
 
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<PAGE>
laboratories and gynecologists'  office laboratories.  It is  estimated that  in
1996, over 150 million Pap smear specimens will be screened worldwide, including
over  50 million in the United States. According to the American Cancer Society,
widespread and regular use of the Pap  smear as a screening test is believed  to
have  contributed  to a  greater than  70% decrease  in mortality  from cervical
cancer in the United States in the past 45 years.
 
  PAP SMEAR TESTS
 
    The conventional Pap smear testing process  begins with the collection of  a
cervical  specimen  during  a  gynecological  examination.  The  physician  then
manually smears  the specimen  onto  a clean  microscope  slide, which  is  then
submitted   to   the  clinical   laboratory  for   cytopathological  microscopic
examination, along with patient data such  as medical history, day in  menstrual
cycle,  family history  and known  risk factors.  Gathering and  collating these
patient data, which are critical  to the proper evaluation  of a specimen, is  a
time-consuming  and labor-intensive process  at both the  physician's office and
the laboratory. The laboratory administrative personnel who gather such data are
also responsible for manually recording the  results of the Pap smear tests  and
ensuring  that both  the slide  and paperwork  provided to  the cytotechnologist
relate to the same patient.
 
    At the laboratory, a cytotechnologist,  a medical professional with  special
training  in  the examination  and interpretation  of  human cells,  conducts an
initial microscopic review  of a  prepared slide.  The cytotechnologist  screens
each  slide with a  microscope to differentiate diseased  or abnormal cells from
healthy cells based on numerous physical characteristics, including size,  shape
and structural details of the cells and nuclei. Other factors considered are the
texture of the specimen, the structure of cell grouping, background of the smear
and  the patient  medical data supplied  by the  referring physician. Typically,
each Pap  smear specimen  is then  classified in  accordance with  The  Bethesda
System  for Reporting Cervical/Vaginal  Cytologic Diagnoses into  one of several
categories ranging from normal (negative) to cancerous. Any specimen  classified
as  other than negative  is generally referred to  a senior cytotechnologist and
then a  pathologist for  further review  and final  diagnosis. A  woman with  an
abnormal  Pap smear  test may  have a  repeat Pap  smear test  or undergo costly
colposcopy and biopsy procedures.
 
    Cytotechnologists  are  regulated  under   CLIA,  which  requires   cytology
laboratories  to  perform proficiency  testing  and quality  control  by testing
cytotechnologists to assure a minimum  competence level. Pap smear screening  is
exceedingly  complex and tedious work. Cytotechnologists are required by CLIA to
screen 100% of  each Pap smear  slide, which  when done correctly  takes six  to
eight  minutes of microscope  viewing per slide. Over  90% of specimens reviewed
are negative. Even  non-negative specimens may  contain only 20  or 30  abnormal
cells  out of a total of  as many as 50,000 to 300,000  cells on the slide. As a
result,  slide  interpretation  errors   can  be  caused   by  fatigue  of   the
cytotechnologist  and the habituation effect of constantly viewing predominately
negative  specimens.  To   potentially  reduce  the   effects  of  fatigue   and
habituation,  CLIA limits to 100 the number of slides that a cytotechnologist is
permitted to screen  in a  day, and many  states and  foreign countries  require
fewer  screenings per day. Although CLIA permits a cytotechnologist to review up
to 100 slides  per day, management  estimates that, as  a practical matter,  the
manual  review process  requiring 100%  slide review  limits the  ability of the
cytotechnologist to reviewing an average of 60 slides per day.
 
    In  conducting  the  conventional  Pap  smear  test,  cytotechnologists  are
required  to locate  and review  information from  the patient's  file, load and
position the  slide  on  the  microscope stage,  manually  move  the  slide  and
continually  focus the microscope  on as many  as 400 fields  of view per slide.
They then place  a mark on  selected abnormal  cells on the  slide and  manually
record  the diagnosis. CLIA requires that  at least 10% of specimens, classified
as negative  be  rescreened for  quality  control. Rescreening  is  accomplished
either  by the  methods described above  or by rescreening  instruments. See "--
Competition."
 
  CONVENTIONAL PAP SMEAR TEST LIMITATIONS
 
    The conventional  Pap smear  testing  process has  significant  limitations,
primarily  relating  to  how  individual  cytotechnologists  and  administrative
personnel analyze slides, diagnose, record the results of
 
                                       31
<PAGE>
such analysis, document the  screening process and  gather and collate  relevant
patient data. Any breakdown in this process could result in slide interpretation
errors,  administrative errors and  increased potential for litigation/liability
risks.
 
    SLIDE INTERPRETATION ERRORS.   The process of  screening and interpreting  a
Pap  smear  test is  complex  and tedious,  and  is prone  to  error due  to the
difficulty of properly locating, evaluating and categorizing subtle changes in a
very small number of cells among a vastly larger cell population as well as  the
fact  that  most  of  the  specimens reviewed  are  classified  as  negative. In
addition, cytotechnologists are  usually encouraged by  laboratory economics  to
review  as many slides as possible within the current CLIA constraint of 100 per
day. As a result, slide interpretation errors can be caused by  cytotechnologist
fatigue  and the habituation effect of constantly viewing predominantly negative
specimens. A false  negative diagnosis may  allow the disease  to progress to  a
later  stage  of development  before being  detected,  thereby requiring  a more
expensive and invasive  course of  treatment and diminishing  the likelihood  of
successful   treatment.  According  to  the  JOURNAL  OF  THE  AMERICAN  MEDICAL
ASSOCIATION, clinical laboratories generally experience false negative rates  of
5% to 30%.
 
    ADMINISTRATIVE  ERRORS.  Gathering  accurate patient data  and ensuring that
the data are  correctly matched  with the patient's  slides provide  significant
administrative   challenges.   Laboratories   employ   full-time  administrative
personnel to assemble patient data, enter patient data on a physical report  and
collate  that  data  with  the  corresponding  slide.  However,  the  volume  of
information  that  must  be  processed  and  organized  manually  can  lead   to
mismatching errors which, in turn, may lead to diagnostic errors.
 
    LITIGATION/LIABILITY  RISKS.  Failure by a laboratory to properly diagnose a
Pap smear specimen can result in significant legal liability. Because there  are
no  current means to  objectively demonstrate what  procedures were conducted by
the cytotechnologist or  that 100%  of the  slide was  reviewed, suits  claiming
negligent  misdiagnosis are  difficult to defend  and may  result in unwarranted
liability.
 
  CYTOPATHOLOGY PRODUCTS
 
    AccuMed's primary focus is on the development and marketing of cytopathology
products that support the review and analysis of cervical Pap smears,  including
slide  management  and  mapping  and  critical  data  management  functions. The
Company's products are designed  to automate multiple aspects  of the Pap  smear
screening process without significantly modifying existing laboratory practices.
The  Company's  current  cytopathology  products  are  the  AcCell  Series  2000
workstations. The Company has developed and is currently testing a prototype  of
the  TracCell 2000 slide mapping workstation. The Company is developing software
and hardware  for a  second generation,  fully automated,  high volume,  mapping
product,  the TracCell  3000, to augment  its workstation  product offering. The
Company is also developing a series of educational and testing products.
 
    THE ACCELL SERIES 2000.  The AcCell Series 2000 workstations consist of  the
AcCell   2000   and   AcCell   2001.  The   AcCell   2000   is   an  interactive
computer-controlled slide handling and precision microscopy workstation that  is
supported  with  comprehensive  data  management  capabilities.  The workstation
consists of a high quality precision microscope (supplied by the Company or  the
customer),   a  computer-controlled  moveable  stage,   a  bar  code  reader,  a
proprietary  slide  marking  mechanism  (the  "dotter"),  an  optional  personal
computer  for the data management system  and a stage-control mouse developed by
the Company. The  system operates in  a Microsoft Windows-Registered  Trademark-
environment  using the Company's proprietary  software. The AcCell 2001 contains
all the features of the AcCell 2000  in addition to an automated cassette  slide
loading  and unloading system  which handles up  to 30 slides  per cassette. The
AcCell 2001 is designed to be used in conjunction with a TracCell 2000.
 
    The AcCell Series 2000 can be linked to the gynecologist's office and to the
laboratory's internal  information  system  in  order  to  provide  computerized
support,  from the  time of  entering patient  information when  the specimen is
taken through the  time of  generating reports  at the  laboratory and  doctor's
office and finally to billing of the patient or payor. After specimen collection
by  the  gynecologist,  using  software  provided  by  the  Company  through the
laboratory either on a network or on a disk, the
 
                                       32
<PAGE>
gynecologist's staff  enters the  patient's relevant  medical history  into  the
system and generates a bar code that is placed on the slide and the hard copy of
the  work order  sent with the  slide to  the laboratory. The  bar code contains
basic patient  information such  as  the patient's  name  and date  of  specimen
collection.  The slides  and patient data,  either in electronic  format or hard
copy, are then transferred from the gynecologist to the clinical laboratory  for
review.
 
    At  the laboratory, the slide is assigned by the laboratory administrator to
the cytotechnologist  for  review.  The  slide is  placed,  either  manually  or
automatically,  on the AcCell stage and is read by the bar code reader to ensure
that  proper   patient  data   is  displayed   on  the   computer  monitor   for
cytotechnologist  review.  The  slide  is  then  automatically  moved  under the
microscope, and the  microscope is  power-focused by  the cytotechnologist.  The
AcCell  Series  2000 automatically  moves the  stage under  the microscope  in a
pattern  and   at  a   speed  selected   by  the   cytotechnologist,  that   the
cytotechnologist  can override  at any  time. As  the slide  is moved  under the
microscope, the  cytotechnologist records  into the  system's memory  the  exact
coordinates  of abnormal cells by clicking  a button on the stage-control mouse.
At the  conclusion of  the  review, selected  abnormal cells  are  automatically
marked  by the dotter with a small physical dot on the slide so that they may be
relocated easily for further manual review. The AcCell Series 2000 will record a
complete analysis only after 100% of the slide has been scanned or a  sufficient
number of abnormal cells have been located to designate the slide as potentially
positive.  Typically, review of a single slide takes five to seven minutes using
the AcCell Series 2000.
 
    After completing  review  of the  slide,  the cytotechnologist  selects  the
appropriate  diagnosis  from a  table in  the data  management system.  The data
management system records all aspects of  the Pap smear screening and saves  the
information  for  future review.  The  AcCell Series  2000  generates management
reports, records  the exact  location  of marked  cells  for a  given  specimen,
digitally  stores  relevant  information  and  provides  full  documentation for
laboratory quality control and regulatory compliance. The Company believes  that
by providing a variety of automated features and a comprehensive data management
system,  the AcCell Series  2000 has the  potential to reduce  the risk of human
slide reading and administrative error.
 
    To extend  the functionality  of  the AcCell  Series 2000,  numerous  system
configuration  options are available, and multiple workstations can be networked
together  within  a  laboratory.   The  MacroVision-TM-,  a  proprietary   image
enhancement  system, can be attached to the  AcCell platform in order to allow a
cytotechnologist to view  on a  monitor the  specimen being  reviewed under  the
microscope.  The  Company  is  currently  developing  proprietary  telepathology
software which, if developed, would enable the AcCell workstation to be operated
remotely using the Company's MacroVision product.
 
    Although the  Pap  smear test  is  the  largest volume  cytology  test,  the
cytopathology  laboratory routinely conducts  other tests based  on samples from
numerous organs and areas of the body, all of which require precision microscopy
and careful management of data to be effectively implemented. Although, to date,
the Company has not developed any  products for these applications, the  Company
believes  that its AcCell technology  may be adapted for  use in connection with
the analysis of these tests in a manner similar to that of Pap smear tests.
 
    THE TRACCELL 2000.   The Company has developed  a prototype of the  TracCell
2000  pre-screening, mapping and slide handling product designed to identify and
create a computerized  map of  empty space and  certain non-clinically  relevant
areas  on the slide and thereby reduce the amount of matter on the specimen that
must be reviewed by the cytotechnologist  using the AcCell Series 2000. Much  of
the  material contained in  a Pap smear  specimen is not  clinically relevant to
cervical cancer screening. In addition to human cells, a typical Pap smear slide
contains a certain amount of vacant space, blood, mucus and other non-clinically
relevant material. Currently,  the cytotechnologist  is required  to review  all
portions  of  the  slide, including  those  portions  that are  not  relevant to
diagnosis, because there  is no basis  upon which to  distinguish such  material
until it is reviewed under the microscope.
 
    The TracCell 2000 is designed to first evaluate whether a sample is properly
stained  and  has  sufficient  material  to  be  statistically  significant. The
TracCell 2000 then automatically  pre-screens the slide to  locate and create  a
computerized map of empty space and certain non-clinically relevant material. In
 
                                       33
<PAGE>
tests  conducted by the Company, it has been demonstrated that the TracCell 2000
can eliminate from 15% to 50% of the slide area to be reviewed. As a result, the
Company believes that  the TracCell 2000  has the potential  to reduce the  time
needed  to evaluate  specimens and allow  the cytotechnologist to  focus on more
thoroughly evaluating potential abnormalities. See "Risk Factors --  Uncertainty
of  Market Acceptance and Initial Investment  in Cytopathology Products" and "--
Government Regulation."
 
    The TracCell 2000 is designed to be used before the slide is reviewed  using
the AcCell 2001. A single TracCell 2000 is designed to support up to five AcCell
2001  instruments based on normal laboratory  usage. The TracCell 2000 creates a
pre-screening pattern for the slide based on the computerized map, which is used
by the AcCell  2001 to automatically  move the  slide to the  relevant area  and
automatically  focus the microscope during the cytotechnologist's review. If the
cytotechnologist wants to alter the prescreened sequence, he or she can override
the system for a  particular slide. Regardless  of whether the  cytotechnologist
chooses  to  override  the  prescribed  sequence,  the  system  is  designed  to
facilitate and  document  100%  review  of the  slide.  The  TracCell  2000,  if
successfully developed and cleared for marketing, will be marketed with software
for  which the laboratory will  pay a software license fee  each time a slide is
reviewed.
 
    The Company  is  currently  testing  the TracCell  2000  with  the  goal  of
supporting  the filing of a 510(k) Notification by the end of 1996. There can be
no assurance that the  testing will be successfully  completed, that the  510(k)
Notification  will be submitted to the FDA on  a timely basis, if ever, that the
FDA or other applicable regulatory authorities  will clear the TracCell 2000  or
that  the  TracCell 2000  will be  successfully marketed.  See "Risk  Factors --
Uncertainty  of  Market  Acceptance  and  Initial  Investment  in  Cytopathology
Products" and "-- Government Regulation."
 
    THE  TRACCELL 3000.  The Company  is developing a second generation specimen
pre-screening and slide mapping product, the TracCell 3000, to further  automate
the  mapping  process.  The  TracCell  3000,  if  successfully  developed,  will
eliminate not only  empty space,  debris and  other material  eliminated by  the
TracCell  2000, but  will also eliminate  certain normal  cellular material. The
Company believes,  based  on preliminary  studies  it has  conducted,  that  the
technology  embodied in the TracCell 3000 may be capable of further reducing the
portion of the  specimen required to  be reviewed by  the cytotechnologist.  The
TracCell  3000 is being designed to  accommodate automated mapping of 500 slides
per eight hour period. Further testing and development and additional  resources
are   necessary  to  determine  whether  a  commercially  viable  TracCell  3000
instrument can be developed. Development of the TracCell 3000 is subject to  all
of the risks associated with the development of new products based on innovative
technologies  and  new  software,  including  unanticipated  technical  or other
problems  and  the  possible  insufficiency  of  the  funds  allocated  for  the
completion  of such development, which  could result in a  change in the design,
delay in  the development,  or abandonment  of such  products. There  can be  no
assurance that the Company will successfully develop the TracCell 3000, that the
TracCell  3000 will  be cleared or  approved for  marketing by the  FDA or other
applicable  regulatory  authorities,   or  that  the   TracCell  3000  will   be
successfully marketed. See "Risk Factors -- Uncertainty of Market Acceptance and
Initial Investment in Cytopathology Products" and "-- Government Regulation."
 
    CYTOPATHOLOGY  EDUCATIONAL AND TRAINING PRODUCTS.   The Company has recently
developed the  MacroVision  feature, a  specially  modified AcCell  product  for
on-screen specimen review. This system can also by used by teaching institutions
and  laboratories which  can provide effective  hands-on cytotechnology training
through a single microscope.  Cytotechnologists are required  by CLIA to  attain
and  maintain  minimum standards  of competence,  and cytology  laboratories are
charged with ensuring  that their  cytology professionals  meet such  competency
standards  through continuing training and testing. Current training and testing
involve the use of multiple microscopes or specialized microscopes equipped with
multiple eyepieces which are  difficult to use.  Using the MacroVision  feature,
the  teacher or trainer can  display the specimen being  reviewed on one or more
computer monitors. The monitor can be viewed directly by the students or can  be
linked  with other  computers and  monitors to  provide remote  or even off-site
viewing. For  testing  purposes,  AccuMed  is  also  developing  a  glass  slide
Proficiency  Testing Station that  provides automated scoring  of the screener's
locator and identification skills on user defined test slide sets.
 
                                       34
<PAGE>
    In  addition,  the  Company  is  developing  the  Relational   Cytopathology
Reference  Guide (the  "Reference Guide"),  a library  of electronically stored,
digitized cell images.  The Reference  Guide may be  used in  training to  allow
students to analyze typical and atypical specimens as slides are being reviewed.
In  the clinical laboratory, the Reference Guide  is being designed to provide a
reference database to  assist the  cytotechnologist and  cytopathologist in  Pap
smear  analysis.  The  Company also  intends  to develop  a  customized tutorial
program expected to  generate computer-controlled  interactive training  modules
for  specific  learning needs  of individual  screeners.  Each of  the Company's
educational products  is  being  designed  to  record  and  document  continuing
education activity to assist in compliance with CLIA requirements.
 
  POTENTIAL ACQUISITION OF INTEREST IN ONCOMETRICS
 
    On  July 3, 1996, the  Company entered into a letter  of intent to acquire a
two-thirds equity interest  in Oncometrics for  aggregate consideration of  $4.0
million in cash.
 
    Oncometrics  was formed  in 1995 as  a wholly-owned subsidiary  of Xillix to
complete the development of an automated  instrument designed to be used in  the
detection, diagnosis and prognosis of early-stage cancer by measuring the DNA in
cells  on  microscope  slides.  Oncometrics  is  developing  a  proprietary high
resolution image cytometer that uses a solid state microscope, a high resolution
digital camera,  proprietary image  analysis software  and high  speed  computer
processors  to capture and analyze cell images  from a microscope slide that has
been stained using Oncometrics' proprietary  staining method. Prototypes of  the
Oncometrics  instrument have been developed that  are capable of isolating small
variations in cell nucleus DNA, which assists the cytotechnologist in  detecting
lung  cancer in an  early stage of  development. Because the  presence of cancer
cells can cause changes in  the nuclear DNA of normal  cells, in some cases  the
Oncometrics  instrument  can detect  cancer even  in the  absence of  cells with
visibly detectable disease.
 
    Oncometrics has demonstrated the feasibility of its technology as it applies
to the detection of  early cancer in lung  mucus. Oncometrics believes that  its
technology may be potentially applied to other types of cancer, such as cervical
cancer.
 
    Oncometrics  is  currently testing  several  prototypes of  its  system with
scientists and  cancer research  institutions. There  can be  no assurance  that
Oncometrics  or the  Company will successfully  develop this system  for lung or
cervical cancer applications or, if developed, that this system will be approved
for marketing by the FDA or  other applicable regulatory authorities or that  it
will be successfully marketed.
 
    Of  the consideration,  $2.0 million would  be paid to  Xillix for currently
outstanding Oncometrics stock and $2.0 million  would be paid to Oncometrics  in
consideration  for newly  issued Oncometrics stock.  The Company  and Xillix are
expected to agree  to provide  operating funding to  Oncometrics on  a pro  rata
basis, of which the Company's portion is estimated to be $1.0 million during the
24  months following the date of this  Prospectus. If a definitive agreement can
be reached, the  Company expects to  use a portion  of the net  proceeds of  the
Offering  to fund the  Oncometrics Acquisition. Consummation  of the transaction
with Xillix  is subject  to various  conditions, including  consummation of  the
Offering,  execution of a  definitive agreement, and  satisfactory due diligence
review. There can be no assurance that the transaction will be consummated.  See
"Use of Proceeds."
 
  CYTOPATHOLOGY SALES AND MARKETING
 
    Pap  smear testing is  performed in approximately  4,500 laboratories in the
United  States.  The   Company  is  currently   marketing  AcCell  Series   2000
workstations  to the clinical laboratory market, primarily in the United States.
In order  to  expand its  markets,  the  Company is  implementing  a  dual-track
marketing  strategy  pursuant to  which it  intends  to enter  into distribution
arrangements with  major market  participants,  as well  as establish  a  direct
marketing  group  to  support  the  marketing  activities  of  its  distribution
partners. The Company  intends to tailor  its marketing strategy  by region  and
country as appropriate to address significant differences among such markets.
 
    The  AcCell Series 2000  is distributed in the  Olympus Territory by Olympus
America pursuant to an exclusive agreement entered into in May 1996. The Company
currently has a two-person direct cytopathology  sales force and is planning  to
add additional sales personnel to support distributors of its products.
 
                                       35
<PAGE>
    Olympus  America  is  a leading  supplier  of precision  microscopes  to the
cytology market in the United States  and throughout the Olympus Territory.  The
Olympus  Agreement grants to Olympus  America exclusive third party distribution
rights to the AcCell Series 2000 and the TracCell 2000, currently being  tested,
in  the Olympus Territory  through May 1999.  These products are  expected to be
incorporated with the Olympus microscope and marketed under and labeled with the
Olympus America and AcCell names. The  Olympus Agreement permits the Company  to
conduct  direct sales efforts in the United  States and direct or indirect sales
efforts throughout the world. Olympus America is required to purchase  specified
minimum  units of  the AcCell  Series 2000  in each  year of  the term, although
direct sales by the Company in the Olympus Territory can be used to satisfy  the
minimum  purchase obligation.  Olympus America has  a right of  first refusal to
distribute in the  Olympus Territory certain  additional cytopathology  products
that  may be developed by AccuMed. The Company's direct sales staff will work in
concert to train  the Olympus America  sales team and  support their efforts  at
industry  trade  shows  and conventions,  and  will be  compensated  directly by
Olympus  America  for  providing  training  and  installation  support  for  the
distributed products.
 
MICROBIOLOGY
 
    The Company develops, manufactures and markets IN VITRO diagnostic tests for
the  clinical  laboratory, veterinary  and  pharmaceutical markets.  The Company
offers the microbiology laboratory a variety of FDA-cleared products, under  the
tradename  Sensititre, for identifying bacteria  suspected of causing infections
and measuring  the  susceptibility  of  such bacteria  to  different  types  and
concentrations  of antibiotics. AccuMed's microbiology products include a series
of disposable test kits and a  range of automated instruments. The Company  also
markets  alamarBlue, a  proprietary, non-toxic  indicator reagent  that measures
cell growth  for  IN VITRO  testing.  The  Company is  developing  an  automated
instrument  designed to read the results  of a Kirby-Bauer method susceptibility
test. In conjunction  with RADCO, the  Company is also  developing a  diagnostic
microbiology  test panel  and an automated  reading instrument. There  can be no
assurance that any of  such products will be  successfully developed, that  such
products  will  be  cleared  or  approved for  marketing  by  the  FDA  or other
applicable regulatory authorities,  or that such  products will be  successfully
marketed.  See "Risk Factors -- Delayed or Unsuccessful Product Development" and
"-- Government Regulation."
 
  BACKGROUND
 
    MIC/ID testing  by  hospitals  and laboratories  assists  physicians,  other
health  care professionals and  veterinarians in determining  the most effective
course of treatment for bacterial infections. MIC/ID testing technology measures
the ability  of  organisms  or  cells to  grow  in  different  combinations  and
concentrations  of  an antibiotic  or other  introduced substance.  By measuring
growth, MIC/ID  testing  products  can,  for  example,  provide  physicians  and
veterinarians  guidance in determining  which antibiotics are  most effective in
treating a given case of bacterial infection.
 
    Current MIC/ID testing  technology consists  of a  variety of  methodologies
employing  a  plastic  panel  with  a  matrix  of  testing  microwells  and  the
Kirby-Bauer  disk  diffusion  method.  Panel  testing  technology  involves  the
placement  of a solution known as a "reagent" containing selected antibiotics in
a matrix of microwells  and adding to  each microwell a  broth which contains  a
sample  of the patient's blood or other  fluid in which bacteria may be present.
After  an  incubation  period,  the  effectiveness  of  the  antibiotic  can  be
determined  by observing  chemical changes  to the  solution. By  constructing a
matrix of testing wells with specific antibiotics in increasing  concentrations,
it is possible to determine not only the effectiveness of a given antibiotic but
also  the minimum  required dosage.  Kirby-Bauer testing  involves placing paper
disks impregnated with a selected  antibiotic in a culture containing  bacterium
and  observing, after the incubation period,  whether the bacterium continues to
grow in proximity to the  disk. The results of such  a test determine whether  a
given  antibiotic is effective against the bacterium but offer no information as
to the minimum dosage required.
 
  MICROBIOLOGY PRODUCTS
 
    SENSITITRE.  Sensititre, which  was acquired by the  Company in 1995,  first
began  offering MIC/ID testing products over 15 years ago. Sensititre was one of
the first companies to introduce a range of
 
                                       36
<PAGE>
systems for MIC/ID testing utilizing microwell panel technology. The  Sensititre
products  incorporate a range of  accessories including substrate strips, dosing
heads, broths,  and  test  panels for  both  susceptibility  and  identification
applications. The Sensititre panels have significant advantages over competitors
including  a  two-year  shelf  life  and  the  ability  to  be  stored  at  room
temperature.  The  Sensititre   product  line  also   includes  four   automated
instruments, each of which uses compatible technologies, and allows customers to
upgrade   without  replacing  the   entire  system.  The   AutoReader-TM-  is  a
microprocessor-based fluorimeter designed to  automatically and rapidly  measure
intensity levels of fluorescence from MIC/ID testing panels. ARIS-TM- is a fully
automated  panel handling, incubating and reading instrument that offers robotic
processing of testing plates.  SensiTouch-TM- is a device  that guides the  user
through  the  manual  reading  of  Sensititre  susceptibility  test  panels  and
transmits the  data  to a  host  computer.  The AutoInoculator-TM-  is  a  rapid
microprocessor-controlled   dispensing  instrument   designed  to  automatically
deliver the proper amount of the patient's specimen to a Sensititre test  panel.
The Company also offers the Sensititre Automated Microbiology System, which is a
sophisticated data management system that provides a wide range of data tracking
and reporting capabilities.
 
    ALAMARBLUE.  The Company manufactures and markets alamarBlue, a proprietary,
non-toxic,  water-soluble  indicator reagent  that measures  cell growth  for IN
VITRO testing.  alamarBlue has  applications  in biological  research,  bacteria
testing,   toxicity  testing  for  consumer  products,  and  pharmaceutical  and
therapeutic research. For example, companies that produce consumer products such
as soaps,  shampoos, lotions  or cosmetics  can conduct  IN VITRO  cell  culture
toxicity  tests  in lieu  of live  animal testing.  Until recently,  the Company
marketed a series  of MIC/ID panel  tests using alamarBlue  under the  tradename
Alamar.  The  Company has  determined that  continuing  to manufacture  and sell
Alamar MIC/ID products  it is  not desirable  and has  ceased manufacturing  and
marketing  these  products.  The  Company  may  resume  marketing  Alamar MIC/ID
products or may  license the manufacture  of Alamar MIC/ID  products to a  third
party in the future, although there can be no assurance to that effect.
 
    In  October 1995, the Company entered into the License Agreement with Becton
pursuant to  which  Becton  has  rights  in  and  to  the  Company's  alamarBlue
technology  and related trade secrets, know-how and patent rights (the "Licensed
Technology") for the  production and sale  of disposable anti-microbial  testing
panels. The worldwide license is exclusive to Becton for certain applications in
the microbiology market; however, the license permits the Company to continue to
practice  all rights in the Licensed Technology, subject to certain restrictions
on the Company's ability to sublicense  the Licensed Technology or to engage  in
significant  transactions  with  substantial competitors  of  Becton.  Becton is
obligated to pay  royalties on  net sales of  any product  which encompasses  or
incorporates  the  Licensed  Technology  for  five  years  following  the  first
commercial use of  the Licensed  Technology, subject to  certain conditions  and
restrictions,  and Becton has  paid the Company  a total of  $3.5 million, which
includes  $500,000  creditable  against  future  royalties.  To  the   Company's
knowledge,  as of the date  of this Prospectus, Becton  has not produced or sold
any products incorporating the Licensed Technology. See "Management's Discussion
and Analysis of Financial Condition and Results of Operations."
 
    KB READER.  In February 1996, the Company entered into a joint venture  with
Biokit, S.A., Barcelona, Spain, to develop a low cost KB Reader designed to read
automatically   the  results  of  a   Kirby-Bauer  method  susceptibility  test.
Currently, most  laboratories interpret  the results  of a  disk diffusion  test
visually  and  manually enter  the test  result. The  Company has  licensed from
Biokit, S.A. certain software algorithms that are intended to be integrated into
the hardware  being  developed by  the  Company.  The Company  has  developed  a
prototype KB Reader and expects to begin clinical trials by the end of 1996. The
Company  has an  exclusive worldwide  license to  manufacture and  market the KB
Reader, except  that  only  Biokit,  S.A.  can sell  the  KB  Reader  in  Italy.
Development  of the KB Reader is subject to all of the risks associated with the
development of new products based  on innovative technologies and new  software,
including   unanticipated  technical   or  other   problems  and   the  possible
insufficiency of the  funds allocated  for the completion  of such  development,
which  could result  in a  change in  the design,  delay in  the development, or
abandonment of such products. Consequently, there  can be no assurance that  the
 
                                       37
<PAGE>
KB Reader will be successfully developed, that the KB Reader will be cleared for
marketing  by the FDA or other applicable regulatory authorities or successfully
marketed. See "Risk Factors -- Delayed or Unsuccessful Product Development"  and
"-- Government Regulation."
 
  POTENTIAL ACQUISITION OF RADCO
 
    In  March  1996, the  Company  and certain  investors  formed RADCO  for the
purpose of  developing a  diagnostic microbiology  test panel  and an  automated
reading  instrument.  The RADCO  automated  product, if  developed,  would allow
AccuMed to provide a single product  to both low-end and high-end volume  users.
RADCO  was  initially  capitalized  through  the  private  placements  of  units
consisting of an aggregate of 400,000  shares of RADCO common stock (the  "RADCO
Stock"), 10% promissory notes in the aggregate principal amount of approximately
$1.2  million  (the "RADCO  Notes"), and  warrants to  purchase an  aggregate of
687,500 shares of AccuMed Common Stock with a weighted average exercise price of
$3.73 per share.  In consideration for  issuance of such  warrants, the  Company
received  10%  of the  outstanding RADCO  Stock. The  Company is  negotiating to
acquire the outstanding RADCO  Stock not owned by  it and the outstanding  RADCO
Notes  for an aggregate purchase price of approximately $1.4 million in cash. If
a definitive agreement can be reached, the  Company expects to use a portion  of
the  net proceeds of the Offering to fund the RADCO Acquisition. Consummation of
the transaction is subject to various conditions, including consummation of  the
Offering and execution of a definitive agreement. There can be no assurance that
the  transaction will be consummated. The  Company's research indicates that the
RADCO system may be feasible; however, development of the RADCO diagnostic  test
panel and automated reading instrument is subject to all of the risks associated
with  the development of  new products based on  innovative technologies and new
software, including unanticipated technical or  other problems and the  possible
insufficiency  of the  funds allocated for  the completion  of such development,
which could result  in a  change in  the design,  delay in  the development,  or
abandonment  of such products. Consequently, there  can be no assurance that the
RADCO  products  will  be  successfully  developed,  cleared  for  marketing  or
successfully  marketed.  See "Risk  Factors --  Delayed or  Unsuccessful Product
Development" and "-- Government Regulation."
 
  MICROBIOLOGY SALES AND MARKETING
 
    The Company's  Sensititre  products  are  marketed  in  the  pharmaceutical,
veterinary  laboratory and  clinical/hospital reference  laboratory markets. The
Company markets alamarBlue to industrial  and research customers, including  the
biotechnology  industry. The  Company markets  its microbiology  products in the
United States with  a seven-person  direct sales  staff and  in certain  foreign
countries  through  exclusive  diagnostic manufacturers  and  distributors. Most
sales to the  veterinary market are  through direct sales.  alamarBlue is  being
marketed  by  the  Company,  primarily  to  industrial  and  research customers,
directly through advertising and trade shows.
 
COMPETITION
 
    The Company believes that  the principal competitive  factors in the  market
for  both  cytopathology  and microbiology  products  include  functionality and
features of product, effectiveness of the product in standard medical  practice,
the  cost of  the product  to the  laboratory and  the demonstrated cost/benefit
justification for purchasing new products. The Company believes that it is  also
important  to provide products that enhance  and assist standard practice rather
than products that require completely  new practices. The Company believes  that
it  competes favorably with respect to these factors. In particular, the Company
has developed a model which is designed to demonstrate, on a test-by-test basis,
the potential increased profitability a  laboratory may experience by using  the
AcCell  Series  2000  and  TracCell  2000.  With  respect  to  its cytopathology
products, the Company also  competes by developing products  that in many  cases
are  designed  to work  with  products offered  by  competitors of  the Company.
Automated solutions, which are  by necessity limited to  an analysis of the  Pap
smear   specimen  against  a  pre-programmed   range  of  cells,  still  require
examination, interpretation and  diagnosis by a  cytotechnologist, which can  be
accomplished  using  the AcCell  Series  2000. The  AcCell  Series 2000  is also
compatible  with  other  Pap  smear   testing  techniques,  such  as   monolayer
preparation slides.
 
                                       38
<PAGE>
    The  Company's AcCell Series 2000 currently faces, and the TracCell 2000, if
successfully developed and  cleared for marketing,  will face, competition  from
companies  that  have  developed or  may  be developing  competing  systems. The
Company believes that many of  the Company's existing and potential  competitors
possess  substantially  greater  financial, marketing,  sales,  distribution and
technical resources  than  the Company,  and  more experience  in  research  and
development,  clinical trials, regulatory  matters, manufacturing and marketing.
The Company is aware of two  companies that currently market imaging systems  to
re-examine  or rescreen conventional Pap smear specimens previously diagnosed as
negative  as  well  as  two  companies  that  are  developing  devices  for  the
preparation and analysis of Pap smear slides. The Company is aware that at least
one  such company has submitted an imaging system  for use as a primary means of
screening Pap smear slides  under a PMA application.  Another company markets  a
manual  rescreening test claimed to detect the presence of cervical cancer using
reagents to  detect  certain RNA/DNA  hybrid  cells. If  any  company  currently
marketing rescreening products receives FDA clearance or approval for use of its
product  as a primary  screening system to  replace or work  in conjunction with
conventional Pap smear testing  or if automated  analysis systems are  developed
and  receive FDA clearance or approval, the  use of conventional Pap smear tests
could be substantially affected and the Company's business, financial  condition
and results of operations would be materially adversely affected.
 
    The   market  for  the   Company's  current  and,   if  developed,  proposed
microbiology products  is  highly competitive,  and  the Company  competes  with
numerous  well-established foreign and domestic companies, many of which possess
substantially greater  financial,  technical,  marketing,  personnel  and  other
resources  than the Company and have  established reputations for success in the
development, sale and  service of  manual and/or automated  IN VITRO  diagnostic
testing  products. A significant  portion of the  MIC/ ID testing  market in the
United States is controlled by  MicroScan and bioMerieux Vitek. These  companies
market a range of medically related products and have resources far greater than
those  of the Company. Difco  has been issued a  U.S. patent covering technology
related to the alamarBlue  technology covered in one  of the Company's  patents.
There  can be no assurance that Difco, which has substantially greater resources
and experience in  research, development, manufacturing  and marketing than  the
Company,  will not  use its  patented technology  to develop  products that will
compete directly with the Company's microbiology products.
 
    The  medical  diagnostic   industry  is  characterized   by  rapid   product
development  and technological advances. The  Company expects its competitors to
continue to  attempt to  improve the  design and  performance of  their  current
products  and  to  introduce  new systems  and  processes  with  improved price/
performance characteristics. There can be  no assurance that other  technologies
or  products  that are  functionally similar  to  those of  the Company  are not
currently available or under development, or that other companies with expertise
and resources  that  would encourage  them  to  attempt to  develop  and  market
competitive products will not develop new products directly competitive with the
Company's  products.  The  Company's  products  could  be  rendered  obsolete or
uneconomical by the  introduction and market  acceptance of competing  products,
technological  advances of the Company's current or potential competitors, or by
other approaches. There can  be no assurance  that the Company  will be able  to
compete  successfully against current or future competitors or that competition,
including the development and commercialization of new products and  technology,
will  not have  a material adverse  effect on the  Company's business, financial
condition and results or operations.
 
MANUFACTURING
 
    The Company assembles and  tests its cytopathology  products at its  Chicago
manufacturing  facility. The Company's microbiology products are manufactured at
the Company's  GMP-approved  manufacturing  facility  in  England.  The  Company
believes  that  it  has  sufficient manufacturing  capacity  to  meet production
requirements for the foreseeable future. Product components are purchased or are
custom fabricated by third party vendors. The Company has purchased and modified
the stage-control mouse  for use with  the AcCell Series  2000 but is  currently
developing  a proprietary  stage-control mouse  which it  expects to manufacture
along with the AcCell Series 2000.  The Company has only recently developed  and
begun  marketing  and  selling  the  AcCell Series  2000.  The  Company  is also
currently developing the
 
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<PAGE>
manufacturing processes for the  TracCell 2000. There can  be no assurance  that
the Company will be able to sell sufficient numbers of systems or develop volume
manufacturing  processes that will lead to the cost-effective manufacture of the
AcCell Series  2000  or TracCell  2000.  See  "Risk Factors  --  Uncertainty  of
Profitable Cytopathology Manufacturing."
 
    Certain  key components and  raw materials used in  the manufacturing of the
Company's products are currently provided by single-source vendors. Although the
Company believes that alternative sources for such components and raw  materials
are  available, any  supply interruption  in a  single-sourced component  or raw
material would  have a  material  adverse effect  on  the Company's  ability  to
manufacture  products until a new source of  supply were qualified. There can be
no assurance  that the  Company  would be  successful in  qualifying  additional
sources  on a timely basis, if ever,  which would have a material adverse effect
on the Company's  business, financial  condition and results  of operations.  In
addition,  an uncorrected  impurity or supplier's  variation in  a raw material,
either unknown to the Company  or incompatible with the Company's  manufacturing
process,  could  have a  material  adverse effect  on  the Company's  ability to
manufacture products. See "Risk Factors -- Dependence on Suppliers."
 
RESEARCH AND DEVELOPMENT
 
    The Company's research  and development efforts  are focused on  introducing
new  products  as well  as  enhancement of  its  existing products.  The Company
believes that  a commitment  to  research and  development  is critical  to  its
ability  to achieve its strategic plan.  During the fiscal years ended September
30, 1994 and 1995, the three month transition period ended December 31, 1995 and
the three months  ended March 31,  1996, the amounts  recorded for research  and
development   were   $580,000,  $387,000,   $4.0   million  and   $4.0  million,
respectively. Of  the amounts  recorded for  the three  month transition  period
ended  December 31, 1995 and the three months ended March 31, 1996, $4.0 million
and $3.5 million, respectively,  reflected certain significant non-cash  charges
against  operations  representing  the  write-off  of  in-process  research  and
development acquired in connection with the Merger. See "Management's Discussion
and Analysis of Financial Condition and Results of Operations."
 
INTELLECTUAL PROPERTY
 
    The Company  relies on  a combination  of patents,  licensing  arrangements,
trade names, trademarks, trade secrets and confidentiality agreements to protect
its intellectual property rights. As of the date of this Prospectus, the Company
has  filed or been  assigned eight U.S. patent  applications covering aspects of
its cytopathology products. The Company  holds certain licenses on several  U.S.
and  foreign patents and other intellectual property rights regarding aspects of
the technology embodied in  the Sensititre product line  and is the licensee  of
certain  automated cell analysis technology. The Company holds a U.S. patent and
has received a notice of intent to grant a related European patent with  respect
to a portion of the alamarBlue microbiology technology.
 
    None of the Company's patent applications has been granted as of the date of
this  Prospectus,  and  there  can  be no  assurance  that  any  of  such patent
applications will result in  an issued patent. The  Company may, in the  future,
file additional patent applications; however, there can be no assurance that the
Company   will  be  successful  in  obtaining  approval  of  any  future  patent
applications it  files with  respect  to its  technologies. In  addition,  since
patent applications in the United States are maintained in secrecy until patents
issue,  and  since  publications  of discoveries  in  the  scientific  or patent
literature tend to lag behind actual discoveries by several months, the  Company
cannot  be certain that it or the relevant patent filer was the first creator of
inventions covered by pending patent applications or that such persons were  the
first to file patent applications for such inventions.
 
    There   can  be  no  assurance   that  the  aforementioned  patents,  patent
applications and licenses  will adequately  protect the  Company from  potential
infringement  by third parties.  Such patents, patent  applications and licenses
may cover only portions of the Company's technologies. Other portions may be  in
the  public domain or protectable only under trade secret laws. The Company has,
in the past, been
 
                                       40
<PAGE>
required to undertake  costly litigation  to enforce  its intellectual  property
rights  and,  although  the Company  is  not  currently aware  of  any potential
infringment, there can be no assurance that the Company will not be required  to
take action to enforce its rights in the future.
 
    The Company also relies for protection of its intellectual property on trade
secret  law and nondisclosure and confidentiality agreements with its employees,
consultants, distributors, researchers and advisors.  There can be no  assurance
that  such agreements will provide meaningful protection for the Company's trade
secrets or  proprietary  know-how  in  the event  of  any  unauthorized  use  or
disclosure  of such  trade secrets or  know-how. In addition,  others may obtain
access to, or independently develop, technologies or know-how similar to that of
the Company.
 
    The Company's success will also depend on its ability to avoid  infringement
of  patent or other proprietary rights of  others. The Company is not aware that
it is  infringing  any  such rights  of  a  third  party, nor  is  it  aware  of
proprietary  rights of others for which it  will be required to obtain a license
in order to develop its  products. However, there can  be no assurance that  the
Company is not infringing proprietary rights of others, or that the Company will
be able to obtain any technology licenses it may require in the future.
 
GOVERNMENT REGULATION
 
    The  Company's products and  manufacturing processes are  regulated by state
and federal  agencies, including  the  FDA and  comparable agencies  in  certain
states  and other  countries. United States  regulatory requirements promulgated
under the  FD&C Act  provide that  many of  the Company's  products may  not  be
shipped  in interstate commerce  without prior authorization  from the FDA. Such
authorization is based on a review of the product's safety and effectiveness for
its intended uses. Medical devices may be authorized by the FDA for marketing in
the United States either pursuant to a 510(k) Notification or a PMA. The process
of obtaining FDA and  other required regulatory clearances  or approvals can  be
time-consuming, expensive and uncertain, frequently requiring several years from
the commencement of clinical trials to the receipt of regulatory approval.
 
    A  510(k) Notification,  among other things,  requires an  applicant to show
that its  products  are  "substantially  equivalent"  in  terms  of  safety  and
effectiveness  to existing products that are currently permitted to be marketed.
An applicant  is permitted  to begin  marketing a  product as  to which  it  has
submitted a 510(k) Notification at such time as the FDA issues a written finding
of  substantial equivalence. Requests  for additional information  may delay the
market introduction  of certain  of an  applicant's products  and, in  practice,
initial  approval of  products can take  substantially longer than  the FDA pre-
market notification review period of 90 days.
 
    A PMA consists  of the submission  to the FDA  of information sufficient  to
establish  independently that  a device is  safe and effective  for its intended
use.  A  PMA  application  must  be  supported  by  extensive  data,   including
preclinical  and clinical trial  data, as well as  extensive literature to prove
the safety and effectiveness of the device.  By statute, the FDA is required  to
respond  to a PMA within 180 days from  the date of its submission; however, the
approval process usually takes  substantially longer, often  as long as  several
years.  During the review period,  the FDA may conduct  extensive reviews of the
Company's facilities, deliver multiple  requests for additional information  and
clarifications and convene advisory panels to assist in its determination.
 
    FDA   clearances  and   approvals,  if  granted,   may  include  significant
limitations on  the intended  uses for  which  a product  may be  marketed.  FDA
enforcement  policy  strictly prohibits  the  promotion of  cleared  or approved
medical devices  for  non-approved or  "off-label"  uses. In  addition,  product
clearances  or approvals may be withdrawn  for failure to comply with regulatory
standards or the occurrence of unforeseen problems following initial marketing.
 
    Marketing of the AcCell  Series 2000 in the  United States does not  require
FDA  clearance or approval. Marketing of the TracCell 2000 in the United States,
however,  will  require  pre-marketing   clearance  or  approval.  The   Company
anticipates  seeking such  clearance through submission  to the FDA  of a 510(k)
Notification. The Company is  currently conducting the  required testing of  the
TracCell 2000 and expects
 
                                       41
<PAGE>
to  submit a 510(k) Notification with respect to the TracCell 2000 by the end of
1996. There can be no assurance that the Company will successfully complete  the
necessary  testing on  a timely  basis, if ever,  that the  TracCell 2000 510(k)
Notification will be submitted to the FDA by  the end of 1996, if ever, or  that
the  FDA will clear  the TracCell 2000 for  marketing in the  United States on a
timely basis.
 
    Marketing of the Company's MIC/ID microbiology products in the United States
requires FDA clearance through the 510(k) Notification process. With respect  to
the  Company's MIC/ID testing  products, 510(k) Notifications  must be filed and
cleared  with  respect  to  each   antibiotic  used.  The  Company  may   submit
applications  to add individual  antibiotics to those  previously cleared as the
market warrants.  However,  there  can  be no  assurance  that  clearances  will
continue  to  be obtained  or that  obtained clearances  will not  be withdrawn.
Marketing of alamarBlue to the industrial and research markets does not  require
FDA clearance or approval.
 
    Marketing  in the United States of the Company's proposed products currently
under development  may  require  additional FDA  clearances  or  approvals.  For
example,  the  Company's  proposed  automated  pre-screening,  specimen  mapping
workstation, the TracCell  3000, if  developed, may not  be sold  in the  United
States  unless and  until the  Company has  obtained FDA  clearance or approval,
either through a  510(k) Notification or  a PMA. In  addition, marketing of  the
Company's  proposed  KB  Reader  and other  proposed  microbiology  products, if
developed, are likely to require FDA clearance through 510(k) Notifications. The
Company is currently conducting  research and development  with respect to  such
products  and has not yet begun clinical  trials. There can be no assurance that
any such products will be developed  and, if developed, that such products  will
be  cleared  or approved  for marketing  or,  if such  clearance or  approval is
received, that  such  clearance or  approval  will  not be  withdrawn.  See  "--
Cytopathology  -- Cytopathology  Products" and "--  Microbiology -- Microbiology
Products."
 
    Sales of medical devices outside of the United States are subject to foreign
regulatory requirements that vary from country to country. The time required  to
obtain approval by a foreign country may be longer or shorter than that required
for  FDA  approval, and  the requirements  may differ.  Export sales  of certain
devices that have not received FDA marketing clearance generally are subject  to
both  FDA export  permit requirements  and, in  some cases,  general U.S. export
regulations. In order to obtain FDA  export permit, the Company may be  required
to  provide  the  FDA  with documentation  from  the  medical  device regulatory
authority of the country in which the purchaser is located. No assurance can  be
given that foreign regulatory approvals will be granted on a timely basis, or at
all.  The  Company  intends to  seek  ISO 9001  qualification,  an international
manufacturing quality standard, and to seek the "CE" mark for the AcCell  Series
2000  and proposed  products. The  CE mark is  recognized by  countries that are
members of  the European  Union and  the European  Free Trade  Association  and,
effective in 1998, will be required to be affixed to all medical devices sold in
the  European  Union. The  AcCell Series  2000  is expected  to be  certified as
complying with CE mark requirements upon completion of the CE mark qualification
process which is underway; however, no  assurance can be given that the  Company
will  obtain the  CE mark for  the AcCell  Series 2000 products  or any proposed
products or satisfy ISO  9001 standards, or that  any product which the  Company
may  develop or commercialize will  obtain the CE mark  or will obtain any other
required regulatory clearance or approval on a timely basis, if ever.
 
    The Company  is  subject to  certain  FDA registration,  record-keeping  and
reporting  requirements, and  certain of the  Company's manufacturing facilities
are obligated  to follow  FDA GMP  guidelines and  are subject  to periodic  FDA
inspection.  The  Company's  facilities  that  manufacture  FDA-cleared products
currently meet applicable GMP guidelines and other FDA guidelines. There can  be
no  assurance, however,  that the facilities  used to  manufacture the Company's
products will continue to meet applicable GMP or other FDA guidelines.
 
    Federal, state and foreign regulations regarding the manufacture and sale of
healthcare products and  diagnostic devices  are subject to  future change.  The
Company  cannot predict what material impact, if any, such changes might have on
its business. Future changes in regulations or enforcement policies could impose
more  stringent  requirements  on  the  Company,  compliance  with  which  could
adversely  affect  the  Company's  business.  Such  changes  may  relax  certain
requirements, which could prove
 
                                       42
<PAGE>
beneficial to the Company's competitors and thus adversely affect the  Company's
business.  In addition, regulations  of the FDA  and state and  foreign laws and
regulations,  including  GMP  guidelines,   depend  heavily  on   administrative
interpretations,  and there can be no assurance that future interpretations made
by the FDA, or other regulatory  bodies, with possible retroactive effect,  will
not  adversely affect the Company. See "Risk Factors -- Technological Change and
Competition."
 
    In addition to the  regulations directly pertaining to  the Company and  its
products,  many of the Company's existing and potential customers are subject to
extensive regulation  and  governmental  oversight. Regulatory  changes  in  the
healthcare  industry  that  adversely  affect  the  business  of  the  Company's
customers could  have  a material  adverse  effect on  the  Company's  business,
financial condition and results of operations.
 
    There  can be no assurance that the Company will be able to obtain necessary
regulatory approvals or clearances in the United States or internationally on  a
timely  basis,  if ever.  Delays  in receipt  of,  or failure  to  receive, such
approvals  or  clearances,  the  loss   of  previously  received  approvals   or
clearances, or failure to comply with existing or future regulatory requirements
would  have  a  material adverse  effect  on the  Company's  business, financial
condition and results of operations.
 
EMPLOYEES
 
    As of July 19, 1996,  the Company had a total  of 85 employees, of whom  two
are  part-time  employees,  in  the following  departments:  20  in  general and
administrative, 14  in  sales and  marketing,  32  in manufacturing  and  19  in
research and development. The Company considers its relations with its employees
to be good.
 
FACILITIES
 
    The  Company currently leases (i) a 5,088  square foot facility at 900 North
Franklin Street, Chicago, Illinois, pursuant  to a lease expiring September  30,
2004,  and (ii) an  additional 3,110 square  foot facility located  at 920 North
Franklin Street, Chicago, Illinois, pursuant  to a lease expiring September  30,
2004,  each subject to  renewal by the Company.  The Company's executive offices
were relocated  to  the  900  North  Franklin  Street  facility  in  July  1996.
Collectively, the Company's Chicago, Illinois facilities also house its research
and  development facilities, an engineering laboratory and cytopathology product
assembly facilities.
 
    The Company's also leases a 10,980  square foot facility in Westlake,  Ohio,
pursuant  to a five year lease expiring April  1, 2005 which is renewable by the
Company. Sensititre  leases an  18,000  square foot  microbiology  manufacturing
facility  in East Grinstead, West Sussex,  England, pursuant to a lease expiring
in 2009.
 
    The Company believes that its facilities are adequate for its proposed needs
though 1996 and  that additional suitable  space is likely  to be available,  if
required.
 
LEGAL PROCEEDINGS
 
    The  Company is not currently a party  to any material litigation and is not
aware of any  pending or threatened  litigation against the  Company that  could
have a material adverse effect upon the Company's business, operating results or
financial condition.
 
                                       43
<PAGE>
                                   MANAGEMENT
 
EXECUTIVE OFFICERS, KEY EMPLOYEES AND DIRECTORS
 
    The executive officers, key employees and directors of the Company and their
ages, are as follows:
 
<TABLE>
<CAPTION>
                    NAME                          AGE                               POSITION
- ---------------------------------------------  ---------  ------------------------------------------------------------
<S>                                            <C>        <C>
Peter P. Gombrich............................     58      Chairman of the Board, Chief Executive Officer and President
Norman J. Pressman, Ph.D.....................     47      Senior Vice President of AccuMed and President,
                                                           Cytopathology Division
Michael D. Burke.............................     45      Senior Vice President of AccuMed and President, Microbiology
                                                           Division
Mark L. Santor...............................     42      Chief Financial Officer
Richard A. Domanik, Ph.D.....................     49      Senior Vice President
Dawn H. Grohs................................     53      Senior Vice President, Cytopathology Division
John H. Abeles, M.D..........................     51      Director
Harold S. Blue...............................     35      Director
Jack H. Halperin, Esq. (1)...................     50      Director
Paul F. Lavallee (1).........................     56      Director
Joseph W. Plandowski.........................     55      Director
Leonard M. Schiller, Esq. (1)................     54      Director
</TABLE>
 
- ------------------------
(1)  Member of the Audit Committee and Compensation Committee.
 
EXECUTIVE OFFICERS
 
    PETER  P. GOMBRICH.   Mr. Gombrich served as  Acting Chief Executive Officer
and a  director  of  the Company  from  the  date of  execution  of  the  Merger
Agreement, April 21, 1995, until consummation of the Merger on December 29, 1995
(the "Merger Date"), at which time he became Chairman of the Board of Directors,
Chief  Executive Officer  and President. Mr.  Gombrich founded  AccuMed, Inc. in
February 1994, and,  from then  until the Merger  Date, Mr.  Gombrich served  as
Chairman,  President and Chief  Executive Officer of  AccuMed, Inc. Mr. Gombrich
was a consultant in  the cytology and microbiology  industries from August  1990
until  forming AccuMed, Inc., serving companies including Accuron Corporation, a
designer of automated Pap smear screening systems. From July 1985 until November
1990, Mr. Gombrich  was the President  and Chief Executive  Officer of  CliniCom
Incorporated,  a bedside clinical information  systems company which he founded.
From 1982 until 1985, Mr. Gombrich was Executive Vice President of the  ventures
group  of ADC  Telecommunications. From  January 1980  until February  1982, Mr.
Gombrich was President of  the pacemaker division of  St. Jude Medical, Inc.,  a
company  that he  co-founded in 1976  and of  which he served  as Executive Vice
President from July 1976 to January 1980. Mr. Gombrich has more than 27 years of
experience in  the  healthcare industry.  Mr.  Gombrich  has a  B.S.  degree  in
electrical engineering and a M.B.A. degree from the University of Denver.
 
                                       44
<PAGE>
    NORMAN  J. PRESSMAN, PH.D.  Dr. Pressman has been a Senior Vice President of
AccuMed and President of the  Company's Cytopathology Division since July  1996.
From  July  1993  until  joining  the  Company,  Dr.  Pressman  was  Manager for
Biotechnology Development,  Strategic  Business  Development  Group  of  Olympus
America,  the  exclusive distributor  of the  Company's  AcCell Series  2000 and
TracCell 2000 in  the Olympus Territory.  Between July and  September 1989,  Dr.
Pressman  was engaged  in the formation  of Cell Systems  International, Inc., a
consulting firm in biomedical specimen  collection, processing and analysis,  of
which  he served as President from September  1989 until July 1993. Dr. Pressman
was the lead research scientist in  the Cytometry and Histometry program of  the
Central Research and Development Department at E.I. du Pont de Nemours & Company
from  December 1986 until July 1989. From September 1976 until December 1986, he
was an  Assistant Professor  (Pathology and  Engineering) at  The Johns  Hopkins
University  School  of  Medicine  and  Head  of  the  Quantitative Cytopathology
Laboratories at The Johns Hopkins Medical Institutions. Dr. Pressman has a  B.S.
degree  in electrical  engineering from  Columbia University,  a M.S.  degree in
systems engineering and a Ph.D. in biomedical engineering from the University of
Pennsylvania.
 
    MICHAEL D. BURKE.  Mr. Burke has been a Senior Vice President of AccuMed and
President of the Company's Microbiology Division since the Merger Date. From May
1995 until the Merger Date, Mr. Burke was a Senior Vice President and  President
of  the Microbiology  Division of  AccuMed, Inc.  From April  1992 until joining
AccuMed, Inc., Mr. Burke was Vice President -- Sales and Distribution, and  from
November  1982 until  April 1992  was Vice  President --  Operations, for Picker
International, Inc., a diagnostic imaging  manufacturer and supplier. Mr.  Burke
has a B.A. degree in political science from Knox College.
 
    MARK L. SANTOR.   Mr. Santor has been Chief Financial Officer of the Company
since  June 1991 and Secretary  since November 1994. Mr.  Santor has also served
the Company as Vice President, Finance  and Operations from November 1992  until
June  1996, and as Assistant  Secretary from May 1994  until November 1994. From
July 1989  until joining  the  Company, Mr.  Santor  served as  Vice  President,
Finance  of Oncotech, Inc., a medical  diagnostic company. From November 1987 to
June 1989, he served  as Director of  Finance of M.P.D.I.,  Inc., a provider  of
magnetic  resonance image scanning  services and related  software products. Mr.
Santor has a M.S. degree in materials engineering from M.I.T. and a M.B.A degree
from the Wharton School of Business. Mr. Santor's employment with the Company is
scheduled to terminate on August 30, 1996.
 
KEY EMPLOYEES
 
    RICHARD A. DOMANIK,  PH.D.  Dr.  Domanik has been  Senior Vice President  of
Technology  of the Company since  May 1996 and was  Vice President of Technology
from the Merger Date until May 1996. From August 1994 until the Merger Date, Dr.
Domanik was Vice President of Engineering of AccuMed, Inc. From June 1979  until
joining  AccuMed,  Inc.,  Dr.  Domanik  served  Abbott  Laboratories  in several
positions relating to research and development of healthcare products, including
Laboratory Manager and Research and Development Manager. Dr. Domanik has a  B.S.
degree  in  chemistry  from  Ripon  College and  a  Ph.D.  in  biochemistry from
Northwestern University.
 
    DAWN H. GROHS.  Ms.  Grohs has been Senior  Vice President of the  Company's
Cytopathology  Division since May 1996 and served as Vice President -- Corporate
Development of the Company's Cytopathology  Division from the Merger Date  until
May  1996. From March 1994 until the Merger  Date, Ms. Grohs was a consultant to
AccuMed, Inc. From 1983 until  August 1995, Ms. Grohs  was President of The  Med
Companies, a healthcare business development management company. Ms. Grohs has a
M.S. degree in mathematics from Memphis State University.
 
DIRECTORS
 
    JOHN  H. ABELES, M.D.   Dr. Abeles has been a  director of the Company since
October 1988. Since March 1996, Dr. Abeles has been the President and a director
of Health Care Acquisition Corp.,  a special purpose acquisition company.  Since
1992,  Dr. Abeles has also been a general partner of Northlea Partners, Ltd., an
investment and venture capital partnership. Since 1980, Dr. Abeles has also been
the President of
 
                                       45
<PAGE>
MedVest, Inc., a  medical consulting  company. Dr. Abeles  has a  M.D. from  the
University  of Birmingham,  England. Dr.  Abeles is  a member  of the  boards of
directors of I-Flow Corporation, Oryx Technology Corp. and DUSA Pharmaceuticals,
Inc.
 
    HAROLD S. BLUE.   Mr. Blue  has been a  director of the  Company since  July
1996.  Since  February  1993, Mr.  Blue  has  been Chief  Executive  Officer and
Chairman of the  Board of  ProxyMed, Inc., a  healthcare information  technology
company.  From July 1992 until February 1995, Mr. Blue served as Chairman of the
Board and  Chief Executive  Officer of  Health Services  of Miami  Lakes,  Inc.,
Health  Services of  Pembroke Lakes,  Inc. and  Health Services  of North Miami,
Inc., each a  physician practice management  group. From June  1979 to  February
1992,  Mr. Blue was President and Chief Executive Officer of Budget Drugs, Inc.,
a retail discount pharmacy chain. From  September 1984 to August 1988, Mr.  Blue
was  Executive Vice President of Best  Generics Incorporated, a national generic
distribution company, which he co-founded.
 
    JACK H. HALPERIN,  ESQ.  Mr.  Halperin has  been a director  of the  Company
since June 1991 and served as Chairman of the Board of Directors from April 1995
until  the Merger Date. Mr.  Halperin is a corporate  attorney with expertise in
venture capital financing and has been practicing law independently since  1987.
Mr.  Halperin has a  B.A. degree in  english from Columbia  University and a law
degree from New York University School of Law. Mr. Halperin is also a member  of
the  boards  of  directors  of  Xytronyx,  Inc.,  I-Flow  Corporation  and Memry
Corporation.
 
    PAUL F. LAVALLEE.   Mr. Lavallee has  been a director  of the Company  since
December  1995. Since January 1996,  Mr. Lavallee has served  as a consultant to
Sigmedics, Inc.,  a  biomedical company.  From  1989 until  December  1995,  Mr.
Lavallee served as Chairman, President and Chief Executive Officer of Sigmedics,
Inc.  Mr. Lavallee has a B.S. degree in  biology from Bates College and a M.B.A.
degree from the University of Chicago.
 
    JOSEPH W. PLANDOWSKI.   Mr. Plandowski  has been a  director of the  Company
since  December 1995. He has been President  of The Lakewood Group, a healthcare
consulting firm, since  February 1995. From  May 1993 until  February 1995,  Mr.
Plandowski  was Vice President  -- Acquisitions of  National Health Laboratories
Inc., which owns  clinical and  anatomic laboratories  nationwide. From  October
1992  through May 1993, he  was Chief Operating Officer  of Nichols Institute, a
clinical reference  laboratory. From  February 1991  through October  1992,  Mr.
Plandowski  was President, Chief  Executive Officer and  a director of Genetrix,
Inc. Mr. Plandowski  has a B.S.  degree in mechanical  engineering and a  M.B.A.
degree from the State University of New York.
 
    LEONARD  M. SCHILLER, ESQ.  Mr. Schiller  has been a director of the Company
since April 1995. Since 1970, Mr. Schiller has been practicing real estate  law,
specializing  in contesting  real estate taxes  in the State  of Illinois. Since
1980, he has also been President  of The Dearborn Group, a residential  property
management  and real estate acquisition company.  Mr. Schiller has a B.A. degree
in liberal arts from the University of Iowa  and a law degree from the ITT  Kent
College Law School.
 
                                       46
<PAGE>
MEDICAL ADVISORY BOARD
 
    AccuMed's  Cytopathology Medical  Advisory Board is  composed of physicians,
scientists and  professors  who provide  advisory  consultation to  the  Company
regarding  technology application,  design, development,  marketing and customer
support issues relative to the Company's cytopathology products.
 
<TABLE>
<CAPTION>
BOARD MEMBER                                              POSITION
- --------------------------------------------------------  --------------------------------------------------------
<S>                                                       <C>
William J. Frable, M.D..................................  Director of the Division of Surgical & Cytopathology at
                                                          the Medical College of Virginia
Shirley E. Greening, M.S., J.D., CFIAC..................  Chairman and Professor of the Department of Laboratory
                                                          Sciences, Thomas Jefferson University
Heinz K. Grohs, M.D. ...................................  Chairman, Associate Director of Pathology and Chief of
                                                          Cytopathology, North Shore Medical Center, Salem,
                                                          Massachusetts
L. Patrick James, M.D...................................  Director of Laboratories, Health Midwest, Kansas City,
                                                          Missouri
Perry A. Lambird, M.D. .................................  President and Chief Executive Officer, PATHCOR, Oklahoma
                                                          City, Oklahoma
Bjorn Stenkvist, M.D., Ph.D. ...........................  Director of Clinical Cytology, Karolinska Institute and
                                                          Hospital, Stockholm, Sweden
David S. Weinberg, M.D., Ph.D...........................  Staff Pathologist, Department of Pathology, Brigham and
                                                          Women's Hospital, Boston, Massachusetts
</TABLE>
 
BOARD OF DIRECTORS
 
    Directors are  elected  at each  annual  meeting to  serve  one-year  terms.
Pursuant  to the Merger  Agreement, from the  Merger Date until  the next annual
meeting of  stockholders  of  the Company,  the  Board  of Directors  is  to  be
comprised  as follows: (i) Mr. Gombrich, as  Chairman of the Board of Directors,
(ii) two directors designated by AccuMed, Inc., (iii) three directors designated
by  Commonwealth  Associates  and  American  Equities  Overseas,  Inc.  ("AEO"),
jointly,  and (iv) one director selected mutually by the other six directors. In
accordance therewith,  (i)  Commonwealth  Associates  and  AEO  have  designated
Messrs. Schiller, Blue and Halperin (who is legal counsel to AEO), (ii) AccuMed,
Inc.  has designated  Messrs. Lavallee and  Plandowski, and (iii)  the other six
directors selected Dr. Abeles to serve on the Board of Directors.
 
COMMITTEES OF THE BOARD OF DIRECTORS.
 
    The Company has established Audit and Compensation Committees. Each of these
committees is responsible to the full Board of Directors, and its activities are
therefore subject to approval of the Board of Directors. The functions performed
by these committees are summarized below.
 
    The Audit  Committee is  responsible for  reviewing the  Company's  internal
accounting  controls, meeting and conferring with the Company's certified public
accountants, and reviewing the results of the accountants' auditing engagement.
 
    The Compensation Committee of the  Board of Directors is comprised  entirely
of  "disinterested"  directors  (within  the meaning  of  Rule  16b-3  under the
Securities  Exchange  Act  of  1934,  as  amended  (the  "Exchange  Act")).  The
Compensation  Committee  determines  base  compensation  and  discretionary cash
bonuses for the Company's senior executives. These determinations are subject to
the approval or ratification  of the full Board  of Directors. The  Compensation
Committee also determines the number and terms of stock options to be granted to
employees,  directors and  consultants of the  Company under  the Company' stock
option plans. See "-- Stock Option Plans."
 
                                       47
<PAGE>
DIRECTOR COMPENSATION
 
    Pursuant to the  Board of  Directors Compensation Plan  (the "Board  Plan"),
adopted  by  the  Board of  Directors  on  January 18,  1996,  each non-employee
director is entitled to the following  compensation for services as a  director:
(i)  an immediately  exercisable, nonqualified  stock option  to purchase 20,000
shares of Common Stock to be granted upon appointment to the Board of Directors,
and (ii)  an  immediately exercisable,  nonqualified  stock option  to  purchase
20,000  shares of Common  Stock to be granted  on the first  trading day of each
January thereafter during which  a non-employee director  continues to serve  on
the  Board of Directors. Such options are to be granted under the Company's 1995
Stock Option Plan or subsequent option plans. The exercise price per share shall
be the fair  market value  of a  share of  Common Stock  on the  date of  grant.
Directors  are reimbursed for reasonable expenses incurred in attending meetings
of the Board of Directors and committees thereof.
 
EXECUTIVE COMPENSATION
 
    SUMMARY  COMPENSATION  INFORMATION.     The  following   table  sets   forth
information  concerning compensation paid or accrued  for the fiscal years ended
September 30, 1993, 1994 and 1995 and the twelve months ended December 31,  1995
by the Company to or on behalf of the Chief Executive Officer and the only other
executive  officer of the  Company whose total  salary and bonus  for the fiscal
year ended  September  30,  1995 exceeded  $100,000  (collectively,  the  "Named
Executive Officers").
 
                          SUMMARY COMPENSATION TABLES
 
<TABLE>
<CAPTION>
                                                                                        FISCAL           ANNUAL
                                                                                      YEAR ENDED     COMPENSATION/
NAME AND PRINCIPAL POSITION                                                          SEPTEMBER 30,       SALARY
- ----------------------------------------------------------------------------------  ---------------  --------------
<S>                                                                                 <C>              <C>
Peter P. Gombrich ................................................................          1995       $   65,625
 Acting Chief Executive Officer (1)
Kenneth D. Miller ................................................................          1995          110,556
 former Chief Executive Officer (2)                                                         1994          114,000
                                                                                            1993          117,500
</TABLE>
 
- ------------------------------
(1)  Mr.  Gombrich became Acting Chief Executive Officer of the Company on April
     21, 1995 and  became Chairman of  the Board of  Directors, Chief  Executive
     Officer and President on December 29, 1995.
 
(2)  Mr.  Miller  served as  Chief Executive  Officer until  April 21,  1995. He
     served as Senior Vice President from April 21, 1995 until June 30, 1996.
 
<TABLE>
<CAPTION>
                                                                          TWELVE MONTHS ENDED
                                                                           DECEMBER 31, 1995
                                                     -------------------------------------------------------------
                                                                                                   LONG-TERM
                                                                                              COMPENSATION AWARDS
                                                                                             ---------------------
                                                      ANNUAL COMPENSATION/     ALL OTHER       SHARES UNDERLYING
NAME AND PRINCIPAL POSITION                                  SALARY           COMPENSATION    STOCK OPTIONS(#)(1)
- ---------------------------------------------------  ----------------------  --------------  ---------------------
<S>                                                  <C>                     <C>             <C>
Peter P. Gombrich .................................       $    103,125         $   --                 200,000
 Chief Executive Officer (2)
Kenneth D. Miller .................................            116,463             21,952              75,000
 former Chief Executive Officer (3)
</TABLE>
 
- ------------------------------
(1)  All such  options were  granted under  the  1995 Stock  Option Plan  at  an
     exercise  price of  $1.13 per  share, the last  reported sale  price of the
     Common Stock on the Nasdaq Market on the date of grant.
 
(2)  Mr. Gombrich became Acting Chief Executive Officer of the Company on  April
     21,  1995 and  became Chairman of  the Board of  Directors, Chief Executive
     Officer and President on December 29, 1995.
 
(3)  Mr. Miller  served as  Chief Executive  Officer until  April 21,  1995.  He
     served  as Senior Vice President  from April 21, 1995  until June 30, 1996.
     The amount listed under  the column "All  Other Compensation" represents  a
     relocation allowance.
 
     STOCK  OPTION GRANTS.  The  following table contains information concerning
grants of stock options to the Named Executive Officers during the twelve months
ended December 31, 1995. All such options were granted under the Company's  1995
Stock Option Plan.
 
                                       48
<PAGE>
         OPTION GRANTS DURING THE TWELVE MONTHS ENDED DECEMBER 31, 1995
 
<TABLE>
<CAPTION>
                                                                  INDIVIDUAL GRANTS
                                          -----------------------------------------------------------------
                                           NUMBER OF     % OF TOTAL SHARES
                                             SHARES         UNDERLYING
                                           UNDERLYING     OPTIONS GRANTED      EXERCISE
                                            OPTIONS        TO EMPLOYEES        PRICE PER
NAME                                      GRANTED (#)      IN YEAR. (1)      ($/SHARE) (2)  EXPIRATION DATE
- ----------------------------------------  ------------  -------------------  -------------  ---------------
<S>                                       <C>           <C>                  <C>            <C>
Peter P. Gombrich.......................      200,000            17.6%         $    1.13         12/29/05
Kenneth D. Miller (3)...................       75,000             6.6               1.13         12/29/05
</TABLE>
 
- ------------------------------
(1)  The  Company  granted to  employees  options  to purchase  an  aggregate of
    1,111,000 shares of Common Stock during the twelve months ended December 31,
    1995.
 
(2) All  such options  were  granted under  the 1995  Stock  Option Plan  at  an
    exercise  price of  $1.13 per  share, the  last reported  sale price  of the
    Common Stock on the Nasdaq Market on the date of grant.
 
(3) Mr. Miller was granted an option  to purchase 75,000 shares of Common  Stock
    on December 29, 1995. The option was immediately exercisable with respect to
    25,000  shares and was  to become exercisable with  respect to an additional
    25,000 shares on December 29, 1996 and with respect to the remaining  25,000
    shares  on December 29, 1997. Pursuant to the terms of the 1995 Stock Option
    Plan, the  remaining  options  to  purchase  50,000  shares  will  terminate
    automatically  on September  30, 1996  (unless previously  exercised), three
    months following the date on  which Mr. Miller's employment terminates.  See
    "-- Stock Option Plans."
 
                                       49
<PAGE>
     YEAR-END OPTION HOLDINGS.  The following table provides certain information
regarding  the unexercised  options held by  the Named Executive  Officers as of
December 31, 1995.  No options were  exercised by the  Named Executive  Officers
during the twelve months ended December 31, 1995.
 
                    UNEXERCISED OPTIONS AT DECEMBER 31, 1995
 
<TABLE>
<CAPTION>
                                                                             NUMBER OF SHARES
                                                                                UNDERLYING
                                                                           UNEXERCISED OPTIONS
                                                                           AT DECEMBER 31, 1995
                                                                                  (#)(1)
                                                                        --------------------------
NAME                                                                    EXERCISABLE  UNEXERCISABLE
- ----------------------------------------------------------------------  -----------  -------------
<S>                                                                     <C>          <C>
Peter P. Gombrich.....................................................      66,666       133,334
Kenneth D. Miller.....................................................     167,000        50,000
</TABLE>
 
- ------------------------------
     (1)None of such options was in the money at December 31, 1995, based on the
        last reported sale price of the Common Stock on December 29, 1995, which
        was the last trading day prior to December 31, 1995.
 
EMPLOYMENT, SEVERANCE AND SEPARATION AGREEMENTS
 
    GOMBRICH  EMPLOYMENT  AND SEVERANCE  AGREEMENT.   Pursuant to  an Employment
Agreement dated August 1, 1994 between Peter P. Gombrich and AccuMed, Inc. which
was assumed by the Company as a  result of the Merger (the "Gombrich  Employment
Agreement"),  Mr. Gombrich serves  as Chairman of the  Board of Directors, Chief
Executive Officer  and  President  of  the Company.  Pursuant  to  the  Gombrich
Employment   Agreement,  Mr.  Gombrich   is  entitled  to   receive  (i)  annual
compensation of $175,000 and (ii)  a minimum annual cash  bonus equal to 30%  of
base  salary for the relevant year, and  additional bonuses as determined by the
Board of Directors, at its discretion. If the Company terminates Mr.  Gombrich's
employment  without cause  or Mr.  Gombrich terminates  his employment  for good
reason or at any  time after 180 days  following the date on  which a Change  of
Control  (as defined below) occurs, Mr. Gombrich would be entitled to a lump-sum
severance payment equal to three times his annual salary. In addition, upon  the
occurrence  of a Change of Control, any stock options held by Mr. Gombrich would
immediately vest  and  be  fully  exercisable.  For  purposes  of  the  Gombrich
Employment  Agreement, a Change of Control shall  be deemed to occur if: (i) any
third party  directly or  indirectly acquires  20% or  more of  the  outstanding
Common   Stock,  (ii)  the  Company  engages   in  a  merger,  consolidation  or
reorganization that results in holders of Common Stock immediately prior to such
transaction holding less than  a majority of the  voting power of the  resulting
entity,  (iii) the Company sells all or  substantially all of its assets or (iv)
Mr. Gombrich's employment is terminated by the Company on a date within 90  days
prior to the date on which a Change of Control occurs.
 
    The  employment term  continues until August  1, 1999.  Thereafter, the term
will be automatically  extended for  additional one-year  periods unless  either
party  delivers notice of election not to extend the employment at least 60 days
prior to the end of the then current term.
 
    PRESSMAN EMPLOYMENT AGREEMENT.  Pursuant  to the Employment Agreement  dated
June  13, 1996 as  amended July 16,  1996, between the  Company and Dr. Pressman
(the "Pressman Employment  Agreement"), Dr.  Pressman will  serve as  President,
Cytopathology  Division and Corporate  Senior Vice President  of the Company for
five years beginning July 5, 1996. Dr. Pressman's annual salary is $157,500  and
he  is eligible to receive annually (i) cash bonuses of up to 30% of such annual
salary, and (ii)  incentive stock  options to purchase  up to  50,000 shares  of
Common  Stock  based  on  the  achievement of  mutually  agreed  upon  goals and
objectives. On July 8, 1996, Dr. Pressman  was granted an option to purchase  an
aggregate  of 250,000 shares of  Common Stock at an  exercise price of $6.25 per
share (the last reported sale price of the Common Stock on the Nasdaq Market  on
the  date on  which Dr.  Pressman's employment  commenced) which  is immediately
exercisable with  respect to  50,000  shares and  will become  exercisable  with
respect  to  50,000  additional  shares  on each  of  the  first  through fourth
anniversaries of  the grant  date. Dr.  Pressman was  granted 25,000  shares  of
Common  Stock on  the date  on which  Dr. Pressman's  employment commenced. Such
shares may not be transferred during  the 18-month period following the date  of
issuance  and would be forfeited  to the Company if  Dr. Pressman terminates the
Pressman Employment Agreement during such period, other than due to a breach  by
the Company. Dr. Pressman
 
                                       50
<PAGE>
is  entitled to borrow up to $85,200 from  the Company for the purpose of paying
taxes due in connection with the grant of such shares. Such loan shall be repaid
without interest in installments to be mutually agreed upon by Dr. Pressman  and
the  Company. The Company  may terminate Dr. Pressman's  employment for cause at
anytime upon written notice.  The Company may  terminate his employment  without
cause  upon six  months' written  notice, in  which case  Mr. Pressman  would be
entitled to an  amount equal to  twelve months' salary  as severance, paid  over
twelve  months. Mr. Pressman may terminate the Pressman Employment Agreement for
any reason upon six months' written notice.
 
    MILLER SEPARATION AGREEMENT.  Pursuant  to the Merger Agreement, Mr.  Miller
and  the Company entered into  a letter agreement dated  as of November 21, 1995
(the "Miller Employment Letter") pursuant to  which Mr. Miller served as  Senior
Vice  President of  the Company. Pursuant  to the Miller  Employment Letter, Mr.
Miller was entitled  to receive  (i) an  annual salary  of $105,000  and (ii)  a
quarterly  bonus of $6,250.  He also received  25,000 shares of  Common Stock in
January 1996 and  an option  to purchase  75,000 shares  of Common  Stock at  an
exercise  price of $1.13 per  share (the last reported  sale price of the Common
Stock on the Nasdaq  Market on the Merger  Date). The employment term  commenced
October  1, 1995.  Pursuant to the  Employment Separation  Agreement and Release
(the "Miller Separation Agreement") dated June  24, 1996 between Mr. Miller  and
the Company, Mr. Miller voluntarily resigned from the Company effective June 30,
1996. During July through October 1996, Mr. Miller is to spend 70% of the normal
work  week discharging  responsibilities as acting  President of RADCO  and as a
consultant to the Company. For rendering such services, Mr. Miller is to receive
$1,875 per month from the Company and  $4,250 per month from RADCO. Pursuant  to
the  Miller Separation  Agreement, Mr.  Miller received  approximately $8,600 in
respect of accrued vacation time and $7,437 with respect to relocation  expenses
and is entitled to receive as a severance payment up to an additional $35,000 to
be  paid in  monthly installments  prior to February  1997. Mr.  Miller has also
agreed to a one-year covenant-not-to-compete with the Company.
 
    SANTOR EMPLOYMENT LETTER  AND SEPARATION  AGREEMENT.  Pursuant  to a  letter
agreement  between Mr. Santor and the Company dated as of February 28, 1995 (the
"Santor Employment Letter"), Mr. Santor  serves as Chief Financial Officer  and,
until  June 1996,  served as  Vice President  of Finance  and Operations  of the
Company. Pursuant to  the Santor Employment  Letter, Mr. Santor  is entitled  to
receive (i) an annual salary of $105,000 and (ii) an annual bonus of $15,000. He
also  received 35,000 shares  of Common Stock  in January 1996  and an option to
purchase 75,000 shares of Common Stock at  an exercise price of $1.13 per  share
(the  last reported sale price  of the Common Stock on  the Nasdaq Market on the
Merger Date). Pursuant to  an Employment Separation  Agreement and Release  (the
"Santor Separation Agreement") between Mr. Santor and the Company dated June 10,
1996,  Mr. Santor will continue to serve as Chief Financial Officer until August
30, 1996. On June 11, 1996,  Mr. Santor's outstanding stock options to  purchase
106,961  shares  of  Common  Stock  accelerated  and  became  fully exercisable.
Pursuant to the Santor Separation Agreement, the Company also forgave $3,300  of
the  principal balance due  to the Company  under a promissory  note made by Mr.
Santor. Mr. Santor has  also agreed to  a one-year covenant-not-to-compete  with
the Company.
 
STOCK OPTION PLANS
 
    The  Company has in effect  three stock option plans,  the 1995 Stock Option
Plan, as amended (the "1995 Plan"),  the Amended and Restated 1992 Stock  Option
Plan (the "1992 Plan"), and the Amended and Restated 1990 Stock Option Plan (the
"1990  Plan," and together with  the 1995 Plan and  the 1992 Plan, the "Plans").
Administration of the Plans has been delegated to the Compensation Committee  of
the  Board of Directors, consisting entirely of "disinterested" directors within
the meaning  of  Rule  16b-3  promulgated under  the  Exchange  Act.  Each  Plan
authorizes  the  Compensation Committee  to  grant to  employees,  directors and
consultants of  the  Company  incentive  stock  options  intended  to  meet  the
requirements of Section 422 of the Internal Revenue Code of 1986, as amended, as
well as nonqualified stock options. The terms of the Plans are summarized below.
 
    As  of July  19, 1996,  (i) options  to purchase  an aggregate  of 1,598,000
shares of Common Stock were outstanding  under the 1995 Plan and 402,000  shares
remained available for future grant thereunder,
 
                                       51
<PAGE>
(ii)  options to purchase  an aggregate of  169,711 shares of  Common Stock were
outstanding under the 1992 Plan and 37,337 shares remained available for  future
grant  thereunder, and (iii) options to purchase an aggregate of 7,815 shares of
Common Stock were  outstanding under the  1990 Plan and  80,794 shares  remained
available for future grant thereunder.
 
  1995 PLAN
 
    The  1995  Plan  was  adopted  by  the  Company's  Board  of  Directors  and
stockholders in October  1995 and December  1995, respectively, authorizing  the
granting  of a  combination of  incentive stock  options and  nonqualified stock
options to purchase an aggregate of up  to 1,500,000 shares of Common Stock.  In
July  1996, the Board of Directors amended the 1995 Plan, subject to stockholder
approval, to increase from 1,500,000 to 2,000,000 the number of shares available
for issuance upon exercise  of options authorized to  be granted under the  1995
Plan. No option may be granted after October 6, 2005.
 
    Under  the 1995 Plan, full-time employees of the Company, including officers
and directors who are employees of  the Company, are eligible to receive  grants
of either incentive stock options or nonqualified stock options. Consultants and
non-employee  directors  are  eligible  to be  granted  only  nonqualified stock
options under the 1995 Plan.  The Compensation Committee, within the  parameters
of  the 1995 Plan, has  authority to determine to  whom options are granted, the
number of shares underlying options granted, and the terms of such options. Each
option grant is evidenced by a stock option agreement.
 
    EXERCISE PRICE.    The option  exercise  price  per share  with  respect  to
nonqualified  stock options granted under the 1995  Plan must be at least 75% of
the fair market value  per share of  the Company's Common Stock  on the date  of
grant  of the option.  The exercise price  per share of  Common Stock underlying
incentive stock options granted under  the 1995 Plan must  be at least the  fair
market  value of the Common Stock on the grant date, except that incentive stock
options granted to an employee who on the  grant date owns more than 10% of  the
combined  voting power of  all classes of  stock of the  Company (a "Ten Percent
Holder") must have an exercise price of at least 110% of fair market value. Fair
market value for purposes of  the 1995 Plan is the  last reported sale price  of
the Common Stock on the Nasdaq Market on the date of grant.
 
    EXERCISE.   The options may be immediately  exercisable on the date of grant
or the  right to  acquire shares  underlying the  options may  become vested  as
determined  by  the Compensation  Committee and  specified  in the  stock option
agreement. In no event may  any option be exercised more  than ten years, or  in
the case of incentive stock options held by a Ten Percent Holder, more than five
years,  after the date of grant. Payment of  the exercise price is to be made in
cash, by the delivery to the Company of  shares of Common Stock or, in the  case
of  nonqualified  options,  by  a so-called  "cashless  exercise."  Common Stock
surrendered in payment of the exercise price  will be valued at its fair  market
value as of the exercise date.
 
    TERMINATION.  The 1995 Plan provides that an optionee whose engagement by or
employment  with the Company has terminated, other than by reason of retirement,
death or permanent  disability, may  exercise his or  her outstanding  incentive
stock  options for a period of 30 days  from the date of such termination. If an
incentive stock  option  holder  retires  after  the  age  of  55,  dies  or  is
permanently  disabled, such optionee, or his or her personal representative, may
exercise such outstanding incentive stock options within one year after the date
of such retirement, death or disability. A nonqualified stock option granted  to
directors  may be  exercised by  the optionee  after he  or she  ceases to  be a
director of the Company until such option expires in accordance with the  option
agreement  governing such  option. The  Compensation Committee  shall specify in
each nonqualified  stock  option  agreement the  circumstances  under  and  time
periods  during which an optionee who is  no longer an employee or consultant of
the Company may exercise his or  her outstanding nonqualified stock options.  To
the  extent that an optionee was not entitled to exercise options at the date of
termination of his or her employment, or if the optionee does not exercise  such
options  within the time specified in the applicable stock option agreement, the
options terminate. Under no  circumstances will an  option be exercisable  after
the termination date specified in the option agreement governing the option.
 
                                       52
<PAGE>
  1990 PLAN AND 1992 PLAN
 
    The  1990 Plan  was adopted  by the Board  of Directors  and stockholders in
October 1990  and February  1991,  respectively. The  1990 Plan  authorizes  the
granting  of incentive stock options and  nonqualified stock options to purchase
an aggregate of 177,324 shares of Common Stock. The 1992 Plan was adopted by the
Board of Directors and stockholders in February 1992 and May 1992, respectively.
The  1992  Plan  authorizes  the   granting  of  incentive  stock  options   and
nonqualified  stock options to purchase an aggregate of 505,000 shares of Common
Stock.
 
    The 1990  Plan and  the 1992  Plan permit  the granting  of incentive  stock
options  to employees and nonqualified stock options to employees, directors and
consultants. The Compensation Committee, within the parameters of the respective
Plans, has the authority to determine to whom options are granted and the  terms
of such options. Each option grant is evidenced by a stock option agreement.
 
    EXERCISE  PRICE.  The exercise price of  options granted under the 1990 Plan
or the 1992  Plan is determined  by the  Compensation Committee and  must be  at
least  the fair market  value of the  Common Stock on  the date of  grant of the
option, except that an  incentive stock option granted  to a Ten Percent  Holder
must have an exercise price of at least 110% of such fair market value.
 
    EXERCISE.   The options may be immediately  exercisable on the date of grant
or the  right to  acquire shares  underlying the  options may  become vested  as
determined  by the Compensation Committee and specified in the option agreement,
except that all options shall become exercisable with respect to at least 20% of
the underlying shares per year on each of the first through fifth  anniversaries
of  the grant date. In no event may any option be exercised more than five years
after the date of grant. Payment of the exercise price is to be made in cash, by
the delivery to the Company of shares of Common Stock or by such other method as
the Compensation Committee may approve.
 
    IMMEDIATELY EXERCISABLE OPTIONS.  The 1990 Plan and the 1992 Plan permit the
Compensation Committee to grant immediately exercisable nonqualified options for
which the  Company will  retain a  repurchase option.  The Company's  repurchase
option lapses over a period of time in accordance with the terms of a restricted
stock purchase agreement governing the terms of the grant.
 
    TERMINATION.  The 1990 Plan and the 1992 Plan provide that an optionee whose
engagement  by  or employment  with the  Company has  terminated, other  than by
reason of his  or her death  or permanent  disability, may exercise  his or  her
stock  options upon the terms provided in the applicable stock option agreement,
provided that all incentive stock options shall terminate three months after the
optionee ceases to be  an employee of the  Company. If an optionee's  employment
with or position as a director of the Company is terminated because of the death
or  disability of  the optionee,  the option, to  the extent  exercisable by the
optionee on the date of such termination,  may be exercised by the optionee  (or
the  optionee's legal  representative) until  the earlier  of the  twelve months
following the termination date  or the date upon  which such option expires.  To
the extent that an optionee was not entitled to exercise the options at the date
of  termination of his or  her employment, or if  the optionee does not exercise
such options within the time specified in the applicable stock option agreement,
the options  terminate, under  no circumstances  will an  option be  exercisable
after  the  termination date  specified in  the  option agreement  governing the
option.
 
                                       53
<PAGE>
                 CERTAIN RELATIONSHIPS AND RELATED TRANSACTIONS
 
    Commonwealth  Associates   is  a   principal  stockholder   and  a   Selling
Stockholder.  Pursuant to a letter agreement dated as of February 14, 1995 among
the Company, AccuMed, Inc. and Commonwealth Associates, Commonwealth  Associates
was  paid a fee for acting as a  "finder" in connection with the Merger. The fee
was paid in the form of $50,000 in  cash, 444,444 shares of Common Stock, and  a
five-year  warrant  to purchase  up  to 750,000  shares  of Common  Stock  at an
exercise price of $1.25 per share. During 1995, Commonwealth Associates acted as
placement agent for the  Company in certain private  placements of Common  Stock
for  which Commonwealth Associates received an aggregate of (i) $353,000 in cash
commissions,  (ii)  a  non-accountable  expense  allowance  of  $106,000,  (iii)
approximately  $10,600 in  reimbursement for the  fees and  expenses of counsel,
(iv) a warrant to purchase an aggregate of 564,840 shares of the Common Stock at
an  exercise  price  of  $0.625  per  share.  During  1995,  the  Company   paid
Commonwealth Associates an aggregate of $59,000 in cash pursuant to a Consulting
Agreement  in  effect  from  January  1,  1996  through  December  31,  1996. As
reimbursement for  certain  expenses  incurred  by  Commonwealth  Associates  in
connection   with  a  terminated  private  placement  of  securities  for  which
Commonwealth Associates was to act as placement agent, the Company (i) issued to
Commonwealth Associates on December 31, 1994, a five-year warrant to purchase an
aggregate of 420,000 shares of  Common Stock at an  exercise price of $0.25  per
share  and (ii) issued  to designees of Commonwealth  Associates on December 29,
1995 five-year warrants  to purchase an  aggregate of 104,000  shares of  Common
Stock at an exercise price of $2.125 per share, which warrants expire on October
31,  1997. Commonwealth Associates acted  as a placement agent  for a portion of
the private placements of securities by the Company from July through  September
1993  for which Commonwealth  Associates received aggregate  cash commissions of
$276,000 and a non-accountable expense allowance of $20,000.
 
    The Company  has agreed,  with respect  to the  exercise of  the  Redeemable
Warrants issued in connection with the Company's initial public offering, to pay
to  Commonwealth Associates a fee of 5% of the exercise price of each Redeemable
Warrant exercised; provided  however, that Commonwealth  Associates will not  be
entitled   to  receive   such  compensation  for   Redeemable  Warrant  exercise
transactions in which: (i) the market price  of the Common Stock at the time  of
the  exercise is lower than the exercise  price of the Redeemable Warrants; (ii)
the Redeemable Warrants are held in any discretionary account; (iii)  disclosure
of  compensation arrangements  is not made  in documents provided  to holders of
Redeemable Warrants at the time of exercise; (iv) the exercise of the Redeemable
Warrants is unsolicited; and (v) the transaction was in violation of Rule  10b-6
promulgated  under the Exchange Act. As of July 19, 1996, no Redeemable Warrants
had been exercised.
 
    The  Company  issued  to  American  Equities  Overseas,  Inc.  ("AEO"),   an
immediately a Selling Stockholder, exercisable, five-year warrant to purchase up
to  100,000 shares of Common Stock at an  exercise price of $0.25 per share. The
AEO Warrants were  issued to AEO  by the Company  as reimbursement for  expenses
incurred  by AEO in connection  with a terminated private  placement in 1994 and
advisory  services  in  connection  with  certain  of  the  Company's   European
stockholders.  In March 1996, the Company  issued to AEO immediately exercisable
five-year warrants to purchase an aggregate of 42,500 shares of Common Stock  at
an  exercise price of $3.87 per share and  20,000 shares at an exercise price of
$3.42 per share, as partial compensation for its services in placing warrants to
purchase  Common  Stock  and  securities   of  RADCO  in  connection  with   the
capitalization  of RADCO.  AEO acted as  placement agent in  connection with the
sale of Common Stock  to certain European  investors in May  1996, for which  it
received  aggregate cash commissions of $56,250.  Pursuant to an Agreement dated
July 18, 1996 among the Company, RADCO and AEO, the Company will be obligated to
pay to AEO a fee of $15,000 in cash upon consummation of the RADCO Acquisition.
 
    Pursuant to the Merger Agreement, from the Merger Date until the next annual
meeting of  stockholders  of  the Company,  the  Board  of Directors  is  to  be
comprised  as follows: (i) Mr. Gombrich, as  Chairman of the Board of Directors,
(ii) two directors designated by AccuMed, Inc., (iii) three directors designated
mutually by  Commonwealth Associates  and AEO,  and (iv)  one director  selected
mutually by
 
                                       54
<PAGE>
the  other six directors.  In accordance therewith,  (i) Commonwealth Associates
and AEO have designated  Messrs. Schiller, Blue and  Halperin (legal counsel  to
AEO),  (ii) AccuMed, Inc. designated Messrs.  Lavallee and Plandowski, and (iii)
the other six directors selected Dr. Abeles, to serve on the Board of Directors.
 
    The Company loaned to Peter P. Gombrich, Chairman of the Board of Directors,
Chief Executive Officer and President of the Company and a Selling  Stockholder,
$61,000  evidenced by  a promissory  note made  May 22,  1996, initially bearing
interest at a rate of  10% per annum and currently  bearing interest at 17%  per
annum,  payable  monthly in  arrears, with  principal  and accrued  interest due
within ten days following the date of such promissory note (the "Maturity Date")
until paid in full. At June 30, 1996, the outstanding principal and accrued  and
unpaid interest thereunder was $62,019.
 
    The  Board of Directors of  the Company issued a  warrant to purchase 75,000
shares of Common Stock to Leonard M.  Schiller, a director of the Company and  a
Selling  Stockholder, in consideration for services  provided by Mr. Schiller to
AccuMed,  Inc.  in  connection  with  the  Merger.  Such  warrant  is  currently
exercisable  at $1.13 per share  (the closing sale price  of the Common Stock on
the Nasdaq  Market on  the date  of issuance  of such  warrant) and  expires  on
December 29, 2000.
 
    Gwenda  Jay Gombrich, the wife of  Peter P. Gombrich, the Company's Chairman
of the Board of Directors and  Chief Executive Officer, loaned to AccuMed,  Inc.
an aggregate of $65,000 pursuant to a Letter Agreement between AccuMed, Inc. and
Ms.  Gombrich  dated October  28,  1994, which  was  assumed by  the  Company in
connection with the Merger. Interest was payable at the rate of 1% per month  on
the  outstanding balance, with a minimum interest  payment of $750. In June 1996
the loan balance was paid in full.
 
    Ms. Gombrich contributed an aggregate of  $75,000 to AccuMed, Inc. prior  to
the Merger, evidenced by Promissory Notes dated May 18, 1994 and August 31, 1994
(the "Gombrich Promissory Notes") and the Interim Financing Agreements dated May
18,  1994  and December  1994 (the  "Interim  Financing Agreements")  each among
AccuMed, Inc. and Ms. Gombrich as custodian for minor children. Pursuant to  the
Interim  Financing Agreements, the  principal amount and  the accrued and unpaid
interest on the  Gombrich Promissory Notes  were required to  be converted  into
shares of common stock of AccuMed, Inc. prior to the Merger. Such conversion did
not  take place.  Upon consummation of  the Merger, the  obligations of AccuMed,
Inc. to  Ms. Gombrich  pursuant  to the  Interim  Financing Agreements  and  the
Gombrich  Promissory Notes were assumed by the Company. In June 1996 the Company
issued to Ms. Gombrich as custodian  for certain minor children an aggregate  of
166,586  shares  of  the Company's  Common  Stock  in full  satisfaction  of the
Company's obligations  pursuant  to the  Interim  Financing Agreements  and  the
Gombrich Promissory Notes.
 
    Hultquist Capital LLC ("Hultquist"), a Selling Stockholder, acted as special
advisor  to the Board of Directors of the Company in connection with the Merger.
Pursuant to the agreement providing for such services, Hultquist (i) was  issued
56,000  shares of Common  Stock on the Merger  Date and (ii)  was entitled to be
paid cash compensation in the aggregate amount of $105,000, of which $66,000 had
been paid and $39,000 was payable as of June 30, 1996.
 
    Robert Priddy, a Selling Stockholder, loaned the Company $250,000  evidenced
by  a Promissory Note made  January 25, 1995, bearing interest  at a rate of 11%
per annum, payable monthly in arrears,  with principal and accrued interest  due
on  or prior to 90  days following the date  thereof. The indebtedness evidenced
thereby was repaid in May 1996.
 
                                       55
<PAGE>
                       PRINCIPAL AND SELLING STOCKHOLDERS
 
    The  table below  sets forth  certain information as  of July  19, 1996 (the
"Reference Date") with respect  to the beneficial ownership  of Common Stock  by
(i)  each person known by the Company to be the beneficial owner of more than 5%
of the outstanding shares of Common  Stock, (ii) each director, (iii) the  Named
Executive  Officers, (iv) officers and directors as a group, and (v) the Selling
Stockholders. On  the Reference  Date, there  were 18,618,536  shares of  Common
Stock outstanding.
 
<TABLE>
<CAPTION>
                                                                                                                     SHARES
                                                                     SHARES BENEFICIALLY OWNED                 BENEFICIALLY OWNED
                                                                       PRIOR TO OFFERING (1)      SHARES TO    AFTER OFFERING (1)
NAME AND ADDRESS                                                    ---------------------------   BE SOLD IN   ------------------
OF BENEFICIAL OWNER                                                      NUMBER         PERCENT    OFFERING     NUMBER    PERCENT
- ------------------------------------------------------------------  -----------------   -------   ----------   ---------  -------
<S>                                                                 <C>                 <C>       <C>          <C>        <C>
DIRECTORS, EXECUTIVE OFFICERS
 AND 5% STOCKHOLDERS(2)
Peter P. Gombrich.................................................  3,556,950(3)           19.0%     250,000   3,306,950     15.0%
Michael Falk .....................................................  2,796,931(4)           13.4      225,000   2,571,931     10.8
 c/o Commonwealth Associates
 733 Third Avenue
 New York, NY 10017
Commonwealth Associates ..........................................  1,889,300(5)            9.3      100,000   1,789,300      7.6
 733 Third Avenue
 New York, NY 10017
John H. Abeles....................................................    326,657(6)            1.8       41,020     285,637      1.3
Jack H. Halperin..................................................     80,388(7)           *          20,000      60,388     *
Michael D. Burke..................................................     85,797(8)           *          12,000      73,797     *
Leonard M. Schiller...............................................    172,159(9)           *           8,000     164,159     *
Paul F. Lavallee..................................................     25,000(10)          *           7,500      17,500     *
Mark L. Santor....................................................    144,247(11)          *              --     144,247     *
Norman J. Pressman................................................     75,000(12)          *              --      75,000     *
Harold S. Blue....................................................     40,000(13)          *              --      40,000     *
Joseph W. Plandowski..............................................     25,000(14)          *              --      25,000     *
All directors and executive officers as a group (10 persons)......  4,531,198(15)          23.6%     338,520   4,157,678     18.7%
 
OTHER SELLING STOCKHOLDERS
Clarion Capital Corp..............................................    320,000               1.7      257,455      62,545     *
Robert Priddy.....................................................    900,000(16)           4.8      200,000     700,000      3.2%
Anne Falk(17)(18).................................................    907,631               4.7      125,000     782,631      3.5
Gallagher Investment Corp.........................................    240,000               1.3       72,000     168,000     *
Richard Friedman..................................................     80,000              *          71,630       8,370     *
Hultquist Capital LLC (19)........................................     56,000              *          54,327       1,673     *
John Robinson.....................................................     88,742(17)(20)      *          50,000      38,742     *
G&G Diagnostics LP I..............................................     75,000              *          50,000      25,000     *
Fred Kassner......................................................    160,000              *          48,000     112,000     *
Andrew B. Hart....................................................     40,000              *          40,000          --     *
Charles Potter....................................................     40,000              *          40,000          --     *
William R. and Barbara J. Schoen..................................     40,000              *          40,000          --     *
Ann F. Gallagher..................................................     80,000              *          35,000      45,000     *
Christopher C. Gallagher..........................................     80,000              *          35,000      45,000     *
Vincent LaBarbara.................................................    110,696(14)(17)      *          30,000      80,696     *
J.A. Cardwell.....................................................     80,000              *          30,000      50,000     *
John Luck.........................................................     40,000              *          30,000      10,000     *
G & G Dispensing, Inc.............................................    320,000(21)           1.7       28,000     292,000      1.3
American Equities Overseas, Inc...................................    221,275(14)(17)       1.2       25,000     196,275     *
</TABLE>
 
                                       56
<PAGE>
<TABLE>
<CAPTION>
                                                                                                                     SHARES
                                                                     SHARES BENEFICIALLY OWNED                 BENEFICIALLY OWNED
                                                                       PRIOR TO OFFERING (1)      SHARES TO    AFTER OFFERING (1)
NAME AND ADDRESS                                                    ---------------------------   BE SOLD IN   ------------------
OF BENEFICIAL OWNER                                                      NUMBER         PERCENT    OFFERING     NUMBER    PERCENT
- ------------------------------------------------------------------  -----------------   -------   ----------   ---------  -------
Philip L. Thomas..................................................    461,312(22)           2.4       24,000     437,312      2.0
<S>                                                                 <C>                 <C>       <C>          <C>        <C>
Joseph L. Schocken................................................     23,495(23)          *          23,495      --         *
Frederick J. Oswald...............................................     40,000              *          20,000      20,000     *
James A. Cardwell, Jr.............................................     40,000              *          20,000      20,000     *
Richard S. Corbin.................................................     35,000(24)          *          20,000      15,000     *
Broadmark Capital Corporation.....................................     15,600(25)          *          15,600          --     *
The P.L. Thomas Group, Inc........................................    301,312(26)           1.6       15,500     285,812      1.3
Leslie Hannefy....................................................     37,929(14)(17)      *          15,000      22,929     *
Alan Hammerman....................................................     40,000              *          12,000      28,000     *
Steven Warner.....................................................     37,929(14)(17)      *          11,379      26,550     *
Murray Segal......................................................     10,298(14)(17)      *          10,298          --     *
Richard A. Voell..................................................     40,000              *          10,000      30,000     *
Shiela Y. Schiller................................................     40,000              *          10,000      30,000     *
Suzanne Schiller..................................................     40,000              *          10,000      30,000     *
Cathy Ross........................................................     20,000(14)(17)      *          10,000      10,000     *
Joel S. Kanter (27)...............................................      9,215              *           9,215          --     *
Hamilton T. Bailey................................................     40,000              *           8,000      32,000     *
Donald M. Earhart (28)............................................     22,895              *           7,700      15,195     *
Joseph D. Ferrone.................................................     32,000              *           6,400      25,600     *
Alan Ebler........................................................      6,000(14)          *           6,000          --     *
David Panvelle....................................................      6,000(14)          *           6,000          --     *
Peggy Howard......................................................      6,000(14)          *           6,000          --     *
Peter Korreng.....................................................      6,000(14)          *           6,000          --     *
Sharon Gignac.....................................................      6,000(14)          *           6,000          --     *
Daniel R. Lee.....................................................     80,000              *           5,000      75,000     *
Paul Goldenheim...................................................     10,000              *           5,000       5,000     *
Robert O'Sullivan.................................................      7,174(14)(17)      *           5,000       2,174     *
Henry T. Wilson (29)..............................................      8,550              *           4,050       4,500     *
Wertheimer Partnership............................................     40,000              *           4,000      36,000     *
Keith Rosenbloom..................................................     12,542(14)(17)      *           4,000       8,542     *
Robert Tucker.....................................................      3,530(14)          *           3,530          --     *
Vincent Ricciardi.................................................      2,337(14)(17)      *           2,337          --     *
Bani Ascuitto.....................................................      1,988(14)(17)      *           1,988          --     *
Marc Siegel.......................................................      1,988(14)(17)      *           1,988          --     *
Alan C. and Linda Alhadeff........................................      1,906              *           1,906          --     *
Leslie Group......................................................      3,530(14)(17)      *           1,788       1,742     *
Russell Bailenson.................................................      1,000(14)(17)      *           1,000          --     *
Eric Rand.........................................................        597(14)(17)      *             597          --     *
Marco Giudice.....................................................        397(14)(17)      *             397          --     *
</TABLE>
 
- ------------------------------
  * Represents less than 1%.
 
 (1)  Unless otherwise noted, the Company believes that all persons named in the
    table have sole voting  and investment power with  respect to all shares  of
    Common  Stock listed as beneficially owned by them. A person is deemed to be
    the beneficial holder  of securities  that can  be acquired  by such  person
    within  60 days  from the  Reference Date upon  the exercise  of warrants or
    options. Each  beneficial  owner's  percentage ownership  is  determined  by
    including  shares, underlying options  or warrants which  are exercisable by
    such person currently, or within 60  days following the Reference Date,  and
    excluding shares underlying options and warrants held by any other person.
 
 (2)  Except as  otherwise noted,  the address  for each  person is  c/o AccuMed
    International, Inc., 900 North Franklin Street, Suite 401, Chicago, Illinois
    60610.
 
 (3) Includes 66,666 shares underlying stock  options held by Mr. Gombrich  that
    are  exercisable currently or  within 60 days  following the Reference Date.
    Includes 513,818 shares held  of record by  Gwenda Gombrich, Mr.  Gombrich's
    wife, directly or as
 
                                       57
<PAGE>
    custodian  for minor children, as to which Mr. Gombrich disclaims beneficial
    ownership. Includes  537,381 shares  subject to  forfeiture if  the  Company
    fails  to  meet  certain  earnings  per  share  or  stock  price performance
    thresholds during  1997 (the  "Performance Shares").  See "Risk  Factors  --
    Potential Fluctuations in Future Quarterly Results."
 
 (4)  Includes 222,222 shares, and 1,667,078 shares underlying warrants that are
    exercisable currently or within 60  days following the Reference Date,  held
    by  Commonwealth  Associates  (excluding  securities  held  in  Commonwealth
    Associates' trading account). Mr. Falk is a control person of the  corporate
    general  partner  of  Commonwealth  Associates  and  may  be  deemed  to  be
    beneficial  owner  of  securities  held  by  Commonwealth  Associates.  Also
    includes  100,000 shares underlying warrants  that are exercisable currently
    or within 60 days following the Reference Date held by Anne Falk, Mr. Falk's
    spouse. Mr. Falk disclaims  beneficial ownership of  the securities held  by
    Commonwealth  Associates except  to the  extent of  his percentage ownership
    interests in Commonwealth Associates. Shares  and warrants held directly  by
    Mr.  Falk were transferred  to him by  Commonwealth Associates. Commonwealth
    Associates disclaims beneficial  ownership of such  shares and warrants  and
    the  underlying  warrant shares.  Such shares  and  warrants were  issued to
    Commonwealth Associates as compensation for certain services rendered to the
    Company. See "Certain Relationships and Related Transactions."
 
 (5)  Includes  1,667,078  shares  underlying  warrants  held  by   Commonwealth
    Associates  that are exercisable  currently or within  60 days following the
    Reference Date. Excludes securities held in Commonwealth Associates' trading
    account. See "Certain Relationships and Related Transactions."
 
 (6) Includes 34,895 shares underlying stock options held by Dr. Abeles that are
    exercisable currently  or  within  60 days  following  the  Reference  Date.
    Includes  253,713 shares of  Common Stock held of  record, and 38,049 shares
    underlying warrants exercisable  currently or within  60 days following  the
    Reference  Date,  by  Northlea  Partners Limited,  as  to  which  Dr. Abeles
    disclaims beneficial ownership.
 
 (7) Includes 35,800 shares underlying stock  options held by Mr. Halperin  that
    are  exercisable currently or  within 60 days  following the Reference Date.
    Includes 1,968 Performance Shares.
 
 (8) Includes 25,000 shares underlying stock options held by Mr. Burke that  are
    exercisable  currently  or  within  60 days  following  the  Reference Date.
    Includes 9,841 Performance Shares.
 
 (9) Includes 100,000 shares  underlying stock options or  warrants held by  Mr.
    Schiller  that are  exercisable currently  or within  60 days  following the
    Reference Date.
 
(10) Consists of shares underlying stock  options held by Mr. Lavallee that  are
    exercisable  currently  or  within  60 days  following  the  Reference Date.
    Includes 1,968 Performance Shares.
 
(11) Includes 106,961 shares  underlying stock options held  by Mr. Santor  that
    are exercisable currently or within 60 days following the Reference Date.
 
(12)  Includes 50,000 shares underlying stock  options held by Mr. Pressman that
    are exercisable currently or within 60 days of the Reference Date.
 
(13) Consists of shares  underlying stock options or  warrants held by Mr.  Blue
    that  are exercisable  currently or within  60 days  following the Reference
    Date.
 
(14)  Consists  of  shares  underlying  stock  options  or  warrants  that   are
    exercisable currently or within 60 days following the Reference Date.
 
(15) Includes 547,371 shares underlying warrants or options held by officers and
    directors  that are exercisable currently or within 60 days of the Reference
    Date.
 
(16) Includes 100,000  shares underlying warrants  held by Mr.  Priddy that  are
    exercisable  currently or within  60 days following  the Reference Date. See
    "Certain Relationships and Related Transactions."
 
(17) Shares listed as being offered  in the Offering by the Selling  Stockholder
    underlie   currently  exercisable   warrants  transferred   to  the  Selling
    Stockholder by Commonwealth Associates. The Selling Stockholder is currently
    or  was  formerly  associated  with  Commonwealth  Associates.  Commonwealth
    Associates   disclaims  beneficial  ownership  of   such  warrants  and  the
    underlying  warrant  shares.  Such  warrants  were  issued  to  Commonwealth
    Associates as compensation for certain services rendered to the Company. See
    "Certain Relationships and Related Transactions."
 
(18)  Includes 222,222 shares,  and 585,409 shares  underlying warrants that are
    exercisable currently or within 60  days following the Reference Date,  held
    by  Ms. Falk's spouse, Michael Falk. Ms. Falk disclaims beneficial ownership
    of shares held by Mr. Falk.
 
(19) Hultquist Capital LLC served as advisor to the Company, in connection  with
    the Merger. See "Certain Relationships and Related Transactions."
 
(20)  Includes 28,097 shares  underlying warrants held by  Mr. Robinson that are
    exercisable currently or within 60 days following the Reference Date.
 
(21) Includes 116,000  shares held  in escrow  In accordance  with an  agreement
    between  G&G Dispensing, Inc. and the  Company that provides for such shares
    to vest upon the achievement by  G&G Dispensing, Inc. of certain goals  with
    respect  to the development of products for the Company. See "Description of
    Capital Stock --  Warrants -- Privately-Issued  Warrants." Includes  175,000
    shares  underlying  warrants held  by  G&G Dispensing  that  are exercisable
    currently or within 60 days following the Reference Date.
 
(22) Includes 301,312 shares underlying warrants that are exercisable  currently
    or  within 60  days following  the Reference  Date held  by The  P.L. Thomas
    Group, Inc., of which Mr. Thomas may be deemed the beneficial owner.  Philip
    L.  Thomas is the President  and sole shareholder of  The P.L. Thomas Group,
    Inc. See footnote 26.
 
                                       58
<PAGE>
(23) Includes 7,895  shares underlying stock  options held by  Mr. Schocken  and
    15,600 shares underlying warrants held by Broadmark Capital Corporation that
    are  exercisable currently or  within 60 days  following the Reference Date.
    Mr. Schocken was a  director of the Company  from November 1992 until  April
    1995.  Mr. Schocken is President of Broadmark Capital Corporation and may be
    deemed to  be the  beneficial  owner of  shares  held by  Broadmark  Capital
    Corporation.  Mr. Schocken disclaims beneficial ownership of the shares held
    by Broadmark Capital Corporation. See footnote 25.
 
(24) Includes 25,000 shares underlying stock options held by Dr. Corbin that are
    exercisable currently or within  60 days following  the Reference Date.  Dr.
    Corbin was a director of the Company from April 1995 to July 1996.
 
(25)  Consists of shares  underlying warrants that  are exercisable currently or
    within 60 days following the Reference Date. See footnote 23.
 
(26) Consists of shares  underlying warrants that  are exercisable currently  or
    within 60 days following the Reference Date. See footnote 22.
 
(27)  Mr. Kanter was a director of the  Company from June 1991 through April 21,
    1995.
 
(28) Mr. Earhart was a  director of the Company  from May 1994 through  December
    29, 1995.
 
(29)  Mr. Wilson was a director of the Company from March 1992 through April 21,
    1995.
 
    The Company has agreed to indemnify certain of the Selling Stockholders  and
the   Selling  Stockholders  have  agreed  to  indemnify  the  Company  and  the
Underwriters against certain civil liabilities, including liabilities under  the
Securities Act.
 
    Except  as  noted in  the  footnotes above  and  under the  caption "Certain
Relationships and Related  Transactions," none of  the Selling Stockholders  has
held  any office or  had any material  relationship with the  Company during the
past three years.
 
                                       59
<PAGE>
                          DESCRIPTION OF CAPITAL STOCK
 
    The following  summary  is  a  description  of  certain  provisions  of  the
Company's Certificate of Incorporation and Bylaws. Such summary does not purport
to  be complete and is subject  to, and is qualified in  its entirety by, all of
the provisions of  the Certificate  of Incorporation and  Bylaws, including  the
definitions therein of certain terms. Copies of the Certificate of Incorporation
and  Bylaws are filed  as exhibits to  the Registration Statement  of which this
Prospectus forms a part.
 
COMMON STOCK
 
    Pursuant to  the  Company's  Certificate  of  Incorporation,  the  Board  of
Directors has the authority to issue up to 30,000,000 shares of Common Stock. As
of  July 19, 1996, there were 18,618,536  shares of Common Stock outstanding and
held of record by 260 stockholders. Each  holder of Common Stock is entitled  to
one  vote per share  held of record  on all matters  submitted to a  vote of the
stockholders. There are no cumulative voting or preemptive rights applicable  to
any  shares  of  Common  Stock.  All shares  of  Common  Stock  are  entitled to
participate pro rata in distributions and  in such dividends as may be  declared
by  the Board of Directors  out of funds legally  available therefor, subject to
any preferential dividend rights of  any outstanding shares of Preferred  Stock.
Subject  to  the prior  rights  of creditors,  all  shares of  Common  Stock are
entitled, in the event of liquidation, dissolution or winding up of the Company,
to participate ratably in  the distribution of all  the remaining assets of  the
Company  after  distribution in  full  of preferential  amounts,  if any,  to be
distributed  to  holders  of  Preferred  Stock.  The  rights,  preferences   and
privileges  of holders  of Common  Stock are  subject to,  and may  be adversely
affected by, the rights of  any series of Preferred  Stock that the Company  may
designate and issue in the future.
 
PREFERRED STOCK
 
    Pursuant  to  the  Company's  Certificate  of  Incorporation,  the  Board of
Directors has  the authority,  without further  action by  the stockholders,  to
issue  up to 5,000,000 shares  of Preferred Stock, in one  or more series and to
fix  the   designations,   powers,   preferences,   privileges,   and   relative
participating, optional or special rights and the qualifications, limitations or
restrictions  thereof,  including  dividend  rights,  conversion  rights, voting
rights, terms of redemption and liquidation preferences, any or all of which may
be greater than the rights of the Common Stock. The Board of Directors,  without
stockholder approval, can issue Preferred Stock with voting, conversion or other
rights  that could  adversely affect  the voting power  and other  rights of the
holders of Common Stock. Preferred Stock could thus be issued quickly with terms
calculated to  delay or  prevent a  change in  control of  the Company  or  make
removal  of management more  difficult. Additionally, the  issuance of Preferred
Stock may have the effect  of decreasing the market  price of the Common  Stock,
and  may adversely affect the  voting and other rights  of the holders of Common
Stock. At present, there  are no shares of  Preferred Stock outstanding and  the
Company has no plans to issue any Preferred Stock.
 
WARRANTS
 
    As  of July 19, 1996, the Company had outstanding warrants to purchase up to
6,007,805 shares of Common Stock, including  warrants to purchase up to  480,402
shares  to be exercised by certain Selling Stockholders prior to consummation of
the Offering and sold in the Offering. See "Principal and Selling Stockholders."
 
  REDEEMABLE WARRANTS
 
    Redeemable Warrants to purchase a total of 2,702,905 shares of Common  Stock
are  tradeable on the  Nasdaq Market under  the symbol "ACMIW."  The Company has
applied for listing of the Redeemable  Warrants on Nasdaq National Market  under
the symbol "ACMIW." The Redeemable Warrants are exercisable at any time prior to
October  15,  1997, at  an exercise  price  of $5.00  per share.  The Redeemable
Warrants are redeemable by the Company at any time prior to their expiration  at
a price of $.25 per underlying share, provided that: (i) notice of not less than
60  days is given to  the warrantholders; (ii) the  closing bid quotation of the
Common Stock on each of the 20 trading days ending on the third day prior to the
date on which the Company gives notice has been at least 150% (currently  $7.50,
subject to
 
                                       60
<PAGE>
adjustment) of the then effective exercise price of the Redeemable Warrants; and
(iii)  the warrantholders shall have exercise rights until the close of business
on the date fixed for redemption.  The Company has agreed with the  Underwriters
not  to redeem the Redeemable Warrants for a period of one year from the date of
this Prospectus without the consent of the Representatives. See "Underwriting."
 
  PRIVATELY-ISSUED WARRANTS
 
    The Company has  from time  to time issued  warrants to  purchase shares  of
Common  Stock to various  vendors and financial  advisors. Currently outstanding
warrants are as follows:
 
    On March 14,  1996, the Company  issued warrants to  purchase up to  687,500
shares to certain investors as part of a private placement and purchase of Units
consisting  of a promissory note of RADCO, common stock of RADCO and warrants of
the Company. Of the RADCO warrants, 220,000 are exercisable at a price of  $3.42
per  share and 467,500 are exercisable at a price of $3.87 per share (subject to
adjustment) for  a period  of three  years. As  of July  19, 1996,  warrants  to
purchase  an  aggregate  of 125,000  shares  had been  exercised  with aggregate
proceeds to the Company of $373,250.
 
    On January 25,  1996, the  Company issued to  Robert Priddy  a warrant  (the
"Priddy  Warrant") to purchase up to  100,000 shares of Common Stock exercisable
at a price of $1.25 per share (subject to adjustment).
 
    On January  18, 1996,  the Company  issued  to The  Research Works,  Inc.  a
warrant  to purchase up to 100,000 shares of Common Stock exercisable at a price
of $2.125 per  share (subject  to adjustment)  for a  period of  five years,  in
consideration  of  certain research  services to  be  performed by  The Research
Works, Inc. A portion of the warrant was first exercisable on January 18,  1996.
The  remaining  portion  of  the  warrant  is  exercisable  in  increments  upon
completion of the second and third research reports by The Research Works, Inc.
 
    On December 29, 1995, the Company (i) issued to Commonwealth Associates  and
certain  of its designees warrants to purchase an aggregate of 750,000 shares of
Common Stock at an exercise price of $1.25 per share (subject to adjustment) for
a period of five  years, (ii) issued to  Commonwealth Associates and certain  of
its  designees warrants to purchase  up to 104,000 shares  of Common Stock, from
the date of issuance  to October 31,  1997, at an exercise  price of $2.125  per
share (subject to adjustment), and (iii) issued to Leonard Schiller a warrant to
purchase  up to 75,000 shares of Common Stock  at an exercise price of $1.13 per
share for  a  period of  five  years.  See "Certain  Relationships  and  Related
Transactions."
 
    On  December 29,  1995, the  Company also  issued to  The P.L.  Thomas Group
warrants to purchase up to an aggregate  of 364,785 shares of Common Stock.  One
third  of such warrants are exercisable at a price of $0.82 per share, one third
are exercisable at a price of $1.64 per share and one-third are exercisable at a
price of $2.47 per share. Such warrants are exercisable at any time with respect
to 301,312 of  the underlying shares  and with respect  to the remaining  63,473
shares  will become exercisable  only if specified earnings  per share and stock
price performance goals are met during 1997.
 
    On September 1, 1995, the Company issued  to AEO warrants to purchase up  to
100,000  shares of Common Stock at an exercise price of $0.25 per share (subject
to adjustment) for  a period of  five years. As  of July 19,  1996, warrants  to
purchase an aggregate of 16,500 shares had been exercised.
 
    On  May 9, 1995, August  14, 1995 and August 22,  1995 the Company issued to
Commonwealth Associates and certain of its designees warrants to purchase up  to
an  aggregate of 564,840 shares  of Common Stock at  an exercise price of $0.625
per share  (subject to  adjustment) for  a period  of five  years. See  "Certain
Relationships and Related Transactions."
 
    On  December 31,  1994, the  Company issued  to Commonwealth  Associates and
certain of its  designees warrants to  purchase up to  420,000 shares of  Common
Stock  at an  exercise price of  $0.25 per  share (subject to  adjustment) for a
period of five years. As of July 19, 1996, warrants to purchase an aggregate  of
20,000  shares  had  been  exercised.  See  "Certain  Relationships  and Related
Transactions."
 
                                       61
<PAGE>
    On March 29, 1994,  the Company issued to  G&G Dispensing, Inc. warrants  to
purchase  up to 175,000 shares of Common Stock at an exercise price of $5.00 per
share (subject to adjustment).
 
    On April 30, 1990,  the Company issued  to AEO a warrant  to purchase up  to
25,275  shares of Common Stock at an  exercise price of $5.00 per share (subject
to adjustment).
 
REGISTRATION RIGHTS
 
    The  Company  has   granted  certain  demand   and  so-called   "piggy-back"
registration  rights to certain holders of Common Stock and warrants to purchase
Common Stock.  In  addition, the  Company  has  offered to  register  under  the
Securities Act the offer and resale of certain shares of Common Stock by holders
not  contractually entitled  to such registration.  The holders  of such rights,
many of whom  are Selling  Stockholders, have  agreed with  the Underwriters  to
limit  the sale of shares of Common Stock  owned by them, other than those to be
sold in the Offering, during specified periods. In satisfaction of the Company's
obligations to such holders,  the Company has agreed  with such holders to  file
with   the  Commission  promptly  following   consummation  of  the  Offering  a
Registration Statement  covering  the  offer  and  resale  of  an  aggregate  of
approximately 5,495,334 shares of Common Stock (including shares of Common Stock
underlying  certain warrants) held by such persons who have agreed to enter into
lock-up agreements  with the  Underwriters. No  other holders  of the  Company's
securities  are entitled  to registration  rights. See  "Risk Factors  -- Shares
Eligible for Future Sale" and "Underwriting."
 
RIGHT OF FIRST REFUSAL IN CERTAIN EQUITY OFFERINGS
 
    Pursuant to a Securities Purchase Agreement  dated May 31, 1996 between  the
Company  and affiliated purchasers  of an aggregate of  170,000 shares of Common
Stock, such purchasers are  entitled to a right  of first refusal in  connection
with  certain equity offerings by the Company between the date of such agreement
until May  31, 1997.  Such right  of first  refusal does  not apply  to (i)  the
issuance  of securities  pursuant to an  underwritten public  offering, (ii) the
issuance of securities upon exercise or conversion of options, warrants or other
convertible securities  outstanding as  of  May 31,  1996,  (iii) the  grant  of
additional  options or warrants or other securities under a stock option plan or
restricted stock plan for employees, directors or consultants of the Company, or
any exercise of options by  employees, directors or consultants, (iv)  issuances
of  securities  in  certain  specified  proposed  private  placements,  and  (v)
issuances of securities  in connection with  commercial banking arrangements,  a
merger,  consolidation  or  sale of  assets  or strategic  partnership  or joint
venture (the primary  purpose of which  is not  to raise equity  capital) or  in
connection with the disposition or acquisition of a business, product or license
by  the  Company.  If the  Company  proposes  to offer  equity  securities under
circumstances other than  as described  in the preceding  sentence, the  Company
must  give such purchasers written notice of  the proposed offering at least ten
business days prior to the proposed  closing date of such offering. During  such
ten  day period, such  purchasers would be  entitled to elect  to purchase their
respective pro rata percentages (determined with reference to the percentage  of
such  170,000  shares  purchased by  a  specified purchaser)  of  the securities
offered on the same terms as the proposed offering.
 
TRANSFER AGENT AND REGISTRAR
 
    American Stock Transfer & Trust Co. is the transfer agent and registrar  for
the Company's Common Stock.
 
DELAWARE ANTI-TAKEOVER LAW
 
    The  Company is  subject to  the provisions of  Section 203  of the Delaware
General Corporation Law ("DGCL"), an anti-takeover law. In general, the  statute
prohibits  a  publicly-held Delaware  corporation from  engaging in  a "business
combination" with an "interested stockholder" for a period of three years  after
the   date  of  the  transaction  in  which  the  person  became  an  interested
stockholder, unless the business combination is, or the transaction in which the
person became an interested stockholder was, approved in a prescribed manner  or
another  prescribed exemption applies. For purposes  of Section 203, a "business
combination" is  defined  broadly to  include  a  merger, asset  sale  or  other
transaction resulting in
 
                                       62
<PAGE>
a  financial benefit to  the interested stockholder.  In general, an "interested
stockholder" is a person who, together with affiliates and associates, owns  (or
within  the three years  prior to such transaction  did own) 15%  or more of the
corporation's voting stock.
 
    In  addition,   certain  provisions   of   the  Company's   Certificate   of
Incorporation  may have the  effect of preventing,  discouraging or delaying any
change in control of  the Company. The  authorization of undesignated  Preferred
Stock makes it possible for the Board of Directors to issue Preferred Stock with
voting  or other  rights or  preferences that  could impede  the success  of any
attempt to change control of the Company. See "-- Preferred Stock."
 
LIMITATION OF LIABILITY AND INDEMNIFICATION
 
    Pursuant to the provisions of the  DGCL, the Company has adopted  provisions
in the Certificate of Incorporation that eliminate the personal liability of its
directors  to the Company or its stockholders for monetary damages for breach of
their fiduciary duty as a director to  the fullest extent permitted by the  DGCL
except  for liability (i) for any breach of their duty of loyalty to the Company
or its stockholders,  (ii) for  acts or  omissions not  in good  faith or  which
involve  intentional  misconduct  or a  knowing  violation of  law,  (iii) under
Section 174  of the  DGCL  (unlawful payments  of  dividends or  unlawful  stock
repurchases or redemptions), or (iv) for any transaction from which the director
derived  an improper  personal benefit.  This provision  also does  not affect a
director's responsibilities under any other laws, such as the federal securities
laws or state or federal environmental laws.
 
    The Company's Certificate of Incorporation contains provisions  indemnifying
directors,  officers,  employees  and  agents  of  the  Company  against certain
liabilities that  may  arise  by reason  of  their  status or  service  as  such
directors,  officers,  employees  or  agents.  Insofar  as  indemnification  for
liabilities arising  under the  Securities Act  may be  permitted to  directors,
officers  and  controlling  persons of  the  Company pursuant  to  the foregoing
provisions, or otherwise, the  Company has been advised  that in the opinion  of
the  Securities and Exchange Commission  (the "Commission") such indemnification
is against public policy as expressed  in the Securities Act and is,  therefore,
unenforceable.
 
                                       63
<PAGE>
                                  UNDERWRITING
 
    Subject  to  the terms  and conditions  of  the Underwriting  Agreement, the
underwriters named  below  (the  "Underwriters"),  for  whom  Vector  Securities
International,   Inc.   and   Tucker   Anthony   Incorporated   are   acting  as
Representatives, have  severally agreed  to purchase  from the  Company and  the
Selling  Stockholders, and the Company and  the Selling Stockholders have agreed
to sell to the Underwriters, the following respective number of shares of Common
Stock:
 
<TABLE>
<CAPTION>
                                                                                    NUMBER OF
UNDERWRITERS                                                                         SHARES
- ---------------------------------------------------------------------------------  -----------
<S>                                                                                <C>
Vector Securities International, Inc.............................................
Tucker Anthony Incorporated......................................................
                                                                                   -----------
    Total........................................................................   4,750,000
                                                                                   -----------
                                                                                   -----------
</TABLE>
 
    The Underwriting Agreement provides that the obligations of the Underwriters
are subject  to  certain conditions  precedent,  including the  absence  of  any
material  adverse change  in the Company's  business and the  receipt of certain
certificates, opinions and letters from the Company and its counsel. The  nature
of  the Underwriters' obligation is such that they are committed to purchase all
shares of Common Stock offered hereby if any of such shares are purchased.
 
    The Underwriters propose to offer the  shares of Common Stock to the  public
at the public offering price set forth on the cover page of this Prospectus, and
to  certain dealers at such price less a concession not in excess  of $
per share.  The  Underwriters  may  allow,  and  such  dealers  may  reallow,  a
concession  not in excess of $         per share to certain other dealers. After
the public offering of the shares of Common Stock, the offering price and  other
selling terms may be changed by the Representatives.
 
    The  Company has granted  to the Underwriters an  option, exercisable at any
time during the 30-day period after the date of this Prospectus, to purchase  up
to an additional 712,500 shares of Common Stock at the public offering price set
forth  on the  cover page  of this  Prospectus, less  underwriting discounts and
commissions. The Underwriters may exercise such option solely for the purpose of
covering over-allotments, if any, in connection with the Offering. To the extent
such option is exercised, each Underwriter will be obligated, subject to certain
conditions, to purchase  approximately the  same percentage  of such  additional
shares  as  the  number  of  shares  of Common  Stock  set  forth  next  to such
Underwriter's name in the  preceding table bears to  the total number of  shares
listed in the table.
 
    The  offering of shares is made for delivery when, as and if accepted by the
Underwriters and  subject  to prior  sale  and to  withdrawal,  cancellation  or
modification  of the Offering without notice. The Underwriters reserve the right
to reject an order for the purchase of shares in whole or in part.
 
    The Company  and  the Selling  Stockholders  have agreed  to  indemnify  the
Underwriters  against  certain  liabilities,  including  liabilities  under  the
Securities Act, and to contribute to  payments the Underwriters may be  required
to make in respect thereof.
 
    The  executive officers, directors  and certain stockholders, warrantholders
and optionholders  of  the Company,  including  the Selling  Stockholders,  have
agreed   that  they  will  not,  without   the  prior  written  consent  of  the
Representatives, offer, sell or otherwise dispose of any shares of Common Stock,
options or warrants to acquire shares of Common Stock or securities exchangeable
for or convertible into shares of Common Stock owned by them (other than through
the Offering) for a period of 270 days after the date of this Prospectus, except
that the holders  may (i) between  90 and 180  days following the  date of  this
Prospectus,  dispose  of one  third of  their  shares of  Common Stock  and (ii)
between 180 and 270 days
 
                                       64
<PAGE>
following the date  of this Prospectus,  dispose of an  additional one third  of
their  shares of Common Stock. Mr. Gombrich has agreed that he will not, without
the prior  written consent  of  the Representatives,  offer, sell  or  otherwise
dispose  of any shares of Common Stock, options or warrants to acquire shares of
Common Stock or securities exchangeable for or convertible into shares of Common
Stock owned by him (other  than through the Offering) for  a period of 270  days
after  the date  of this Prospectus.  The Company  has agreed that  it will not,
without the  prior  written consent  of  the Representatives,  offer,  sell,  or
otherwise  dispose of any shares of Common Stock, options or warrants to acquire
shares of Common Stock or securities exchangeable for or convertible into shares
of Common Stock  for a period  of 180 days  after the date  of this  Prospectus,
except  that the  Company may grant  additional options under  its stock options
plans, or  issue  shares upon  the  exercise  of outstanding  stock  options  or
warrants.  Furthermore, the  Company has  agreed that  it will  not, without the
prior written consent  of the  Representatives, redeem  the Redeemable  Warrants
prior  to one year following  the date of this  Prospectus. See "Risk Factors --
Shares Eligible for Future Sale."
 
                       CHANGE IN INDEPENDENT ACCOUNTANTS
 
    Coopers & Lybrand LLP ("C&L") were previously the principal accountants  for
the Company. On January 15, 1996, C&L's appointment as principal accountants was
terminated  and  the Company  engaged  KPMG Peat  Marwick  LLP as  the Company's
principal accountants. The Company's Board of Directors approved the decision to
change accountants. The opinions of C&L on the balance sheet of AccuMed, Inc. as
of December 31, 1994,  and the statement  of operations, stockholders'  deficit,
and cash flows for the period from February 7, 1994 (inception) through December
31,  1994, the balance  sheets of Alamar  Biosciences, Inc. as  of September 30,
1995 and 1994, and the statements of operations, stockholders' equity, and  cash
flows  for each of the  three years in the period  ended September 30, 1995, and
the balance sheet  of Sensititre/Alamar, the  Microbiology Division of  AccuMed,
Inc.,  as of December 31,  1994 and the statements of  net sales, cost of sales,
and selling expenses for the eight months  ended December 31, 1994 and for  each
of  the two years in the period ended April 30, 1994 did not contain any adverse
opinions or disclaimers or opinions,  or modifications as to uncertainty,  audit
scope or accounting principles, except that for the opinions related to AccuMed,
Inc.  and  Alamar Biosciences,  Inc.,  C&L modified  its  reports to  include an
uncertainty explanatory  paragraph  which  expressed  substantial  doubt  as  to
AccuMed,  Inc.'s and Alamar  Biosciences, Inc.'s ability to  continue as a going
concern. There were no disagreements between  the Company and C&L on any  matter
of  accounting  principles  or  practices,  financial  statement  disclosure, or
auditing scope  or  procedures, which  disagreements,  if not  resolved  to  the
satisfaction  of C&L,  would have  caused it  to make  reference to  the subject
matter of the disagreements in connection with its report.
 
                             AVAILABLE INFORMATION
 
    The Company is subject to the informational requirements of the Exchange Act
and,  in  accordance  therewith,  files  reports,  proxy  statements  and  other
information  with  the  Commission.  Such reports,  proxy  statements  and other
information filed  by the  Company may  be inspected  and copied  at the  public
reference  facilities maintained  by the Commission  at 450  Fifth Street, N.W.,
Room 1024, Washington, D.C.  20549, and at the  following regional offices:  New
York  Regional Office, 7 World Trade Center, Room 1400, New York, New York 10048
and Chicago  Regional Office,  500  West Madison  Street, Suite  1400,  Chicago,
Illinois  60661. Copies of  such material may  also be obtained  from the Public
Reference Section of the Commission at 450 Fifth Street, N.W., Washington,  D.C.
20549,  at prescribed rates. The  Commission also maintains a  site on the World
Wide Web that  contains reports,  proxy statements,  information statements  and
other  information  regarding  companies  that  file  such  documents  with  the
Commission electronically. The website address is http://www.sec.gov. The Common
Stock is quoted on The Nasdaq Market and reports and other information regarding
the Company may be inspected at the National Association of Securities  Dealers,
Inc. at 1735 K Street, N.W., Washington, D.C. 20006.
 
                                       65
<PAGE>
                INCORPORATION OF CERTAIN DOCUMENTS BY REFERENCE
 
    The following documents which have heretofore been filed by the Company with
the  Commission  pursuant to  the Exchange  Act,  are incorporated  by reference
herein and shall be deemed to be a part hereof:
 
    (1) The Company's Annual Report on Form 10-KSB for the year ended  September
       30, 1995.
 
    (2)  The Company's Current Report  on Form 8-K filed  with the Commission on
       January 16, 1996.
 
    (3) The Company's Current  Report on Form 8-K  filed with the Commission  on
       January 17, 1996.
 
    (4)  The Company's Current Report  on Form 8-K filed  with the Commission on
       January 19, 1996.
 
    (5) The Company's Amendment No. 1 to the Current Report on Form 8-K/A  filed
       with the Commission on January 24, 1996.
 
    (6) The Company's Transition Report on Form 10-KSB for the transition period
       ended December 31, 1995.
 
    (7)  The Company's  Quarterly Report  on Form  10-QSB for  the quarter ended
       March 31, 1996.
 
    (8) The description of Common Stock contained in the Company's  Registration
       Statement  on Form 8-A filed with the Commission on September 18, 1992 by
       which the Common Stock of the Company was registered under Section 12  of
       the  Exchange Act, and  the description of  the Common Stock incorporated
       therein by reference to  the Registration Statement  on Form S-1  (Regis.
       No.  33-48302) filed with the  Commission on June 3,  1992 and amended on
       June 25, 1992, July  23, 1992 and September  10, 1992, under the  caption
       "Description of Securities" therein.
 
    (9) The description of the Common Stock contained in the Company's Amendment
       No.  1 to Registration Statement on  Form 8-A/A filed with the Commission
       on January 2, 1996.
 
    All documents filed by the Company pursuant to Sections 13(a), 13(c), 14  or
15(d)  of the Exchange Act, after the date  of this Prospectus, and prior to the
termination of the Offering, shall be deemed to be incorporated by reference  in
this  Prospectus and  to be  a part  hereof, from  the date  of filing,  of such
documents. Any statement incorporated by reference herein shall be deemed to  be
modified,  or superseded for purposes  of this Prospectus, to  the extent that a
statement contained herein, or  in any other  subsequently filed document  which
also  is, or  is deemed  to be,  incorporated by  reference herein,  modifies or
supersedes such statement. Any statement,  so modified or superseded, shall  not
be  deemed, except as  so modified or  superseded, to constitute  a part of this
Prospectus.
 
    The Company  will  provide, without  charge  to  each person  to  whom  this
Prospectus  is delivered, upon written or oral request,  a copy of any or all of
the documents  incorporated  by  reference in  this  Prospectus  (not  including
exhibits  and other  information that  is incorporated  by reference  unless the
exhibits are themselves  specifically incorporated by  reference). Requests  for
such documents should be directed to AccuMed International, Inc., located at 900
North  Franklin  Street, Suite  401, Chicago,  Illinois 60610,  Attention: Chief
Financial Officer, telephone (312) 642-9200.
 
                             ADDITIONAL INFORMATION
 
    Additional information  regarding the  Company  and the  securities  offered
hereby  is contained  in the  Registration Statement on  Form S-2  of which this
Prospectus forms a  part, and  the exhibits  thereto filed  with the  Commission
under  the Securities Act. For further information pertaining to the Company and
the securities offered hereby, reference  is made to the Registration  Statement
and  the exhibits thereto, which may be  inspected without charge at, and copies
may be obtained at  prescribed fees from,  the office of  the Commission at  450
Fifth Street, N.W., Washington, D.C. 20549.
 
    The  Company furnishes  stockholders with annual  reports containing audited
financial statements and other  periodic reports as the  Company may deem to  be
appropriate,  or as required by law or  the rules of the National Association of
Securities Dealers, Inc.
 
                                       66
<PAGE>
                                 LEGAL MATTERS
 
    The legality of  the securities offered  by this Prospectus  will be  passed
upon  for  the Company  and  the Selling  Stockholders  by Graham  &  James LLP,
Sacramento, California. Certain partners in Graham & James LLP own an  aggregate
of  1,458 shares  of Common Stock  and 1,000 Redeemable  Warrants. Certain legal
matters relating to  the Offering will  be passed upon  for the Underwriters  by
Skadden, Arps, Slate, Meagher & Flom, Chicago, Illinois.
 
                                    EXPERTS
 
    The  balance  sheet  of  AccuMed,  Inc as  of  December  31,  1994,  and the
statements of operations, stockholders' deficit,  and cash flows for the  period
from  February 7, 1994 (inception) through December 31, 1994, the balance sheets
of Alamar Biosciences,  Inc. as  of September  30, 1995  and 1994,  incorporated
herein  by  reference  in this  Prospectus,  and the  statements  of operations,
stockholders' equity, and cash flows for each  of the three years in the  period
ended  September 30, 1995, included in this Prospectus, and the balance sheet of
Sensititre/Alamar, the Microbiology  Division of AccuMed,  Inc., as of  December
31,  1994 and the statements  of net sales, cost  of sales, and selling expenses
for the eight months ended  December 31, 1994 and for  each of the two years  in
the  period  ended April  30,  1994, incorporated  herein  by reference  in this
Prospectus, have been so  included or incorporated by  reference in reliance  on
the  reports, which included  explanatory paragraphs related  to AccuMed, Inc.'s
and Alamar Biosciences, Inc.'s  ability to continue as  going concerns, of  C&L,
given on the authority of said firm as experts in accounting and auditing.
 
    The balance sheets of AccuMed International Limited as of December 31, 1994,
April 30, 1994 and 1993, and the statements of operations and cash flows for the
eight  months ended  December 31,  1994, and for  each of  the two  years in the
period ended  April  30, 1994,  as  incorporated  herein by  reference  in  this
Prospectus, have been included herein in reliance on the report of C&L, given on
the authority of said firm as experts in accounting and auditing.
 
    The  consolidated financial  statements of  AccuMed International,  Inc. and
subsidiaries as of December  31, 1995, and for  the three months ended  December
31,  1995, included in this Prospectus and incorporated herein by reference from
the Company's Transition Report on Form 10-KSB for the three month period  ended
December 31, 1995 have been so included or incorporated by reference in reliance
upon  the  report  of  KPMG  Peat  Marwick  LLP,  independent  certified  public
accountants ("KPMG"),  and  upon  the  authority of  said  firm  as  experts  in
accounting and auditing.
 
    The financial statements of Oncometrics Imaging Corp. as of August 31, 1995,
December  31, 1995 and May 31, 1996, and for the year ended August 31, 1995, for
the four months ended December  31, 1995 and for the  five months ended May  31,
1996,  included in this Prospectus,  have been so included  in reliance upon the
report of KPMG, chartered  accountants, and upon the  authority of said firm  as
experts in accounting and auditing.
 
    Statements in this Prospectus under the captions "Risk Factors -- Protection
of  Intellectual Property" and  "Business -- Intellectual  Property," insofar as
they relate  to  patent  matters,  other than  with  respect  to  the  Company's
microbiology technology, have been reviewed and approved by Banner & Allegretti,
Ltd.,  special patent counsel to  the Company, and have  been included herein in
reliance upon the review and approval by such firm as experts in patent law.
 
    Statements in this Prospectus under the captions "Risk Factors -- Protection
of Intellectual Property"  and "Business --  Intellectual Property," insofar  as
they  relate  to  patent  matters in  connection  with  the  Alamar microbiology
technology and the trade secret litigation  which occurred from late 1994  until
early  1996, have been reviewed  and approved by Townsend  and Townsend and Crew
LLP, special patent  counsel to the  Company, and have  been included herein  in
reliance upon the review and approval by such firm as experts in patent law.
 
                                       67
<PAGE>
                         INDEX TO FINANCIAL STATEMENTS
 
<TABLE>
<CAPTION>
                                                                                                               PAGE
                                                                                                             ---------
<S>                                                                                                          <C>
ACCUMED INTERNATIONAL, INC. AND SUBSIDIARIES
  Independent Auditors' Report.............................................................................        F-2
  Independent Accountants' Report..........................................................................        F-3
  Consolidated Balance Sheets as of September 30, 1995, December 31, 1995 and March 31, 1996 (unaudited)...        F-4
  Consolidated Statements of Operations for the years ended September 30, 1994 and 1995, for the three
   months ended December 31, 1995 and for the three months ended March 31, 1996 (unaudited)................        F-5
  Consolidated Statements of Stockholders' Equity for the years ended September 30, 1994 and 1995, for the
   three months ended December 31, 1995 and for the three months ended March 31, 1996 (unaudited)..........        F-6
  Consolidated Statements of Cash Flows for the years ended September 30, 1994 and 1995, for the three
   months ended December 31, 1995 and for the three months ended March 31, 1996 (unaudited)................        F-7
  Notes to Consolidated Financial Statements...............................................................        F-8
ONCOMETRICS IMAGING CORP.
  Auditors' Report.........................................................................................       F-23
  Balance Sheets as of August 31, 1995, December 31, 1995 and May 31, 1996.................................       F-24
  Statements of Operations and Deficit for the year ended August 31, 1995, for the four months ended
   December 31, 1995 and for the five months ended May 31, 1996............................................       F-25
  Statements of Changes in Financial Position for the year ended August 31, 1995, for the four months ended
   December 31, 1995 and for the five months ended May 31, 1996............................................       F-26
  Notes to Financial Statements............................................................................       F-27
PRO FORMA CONDENSED COMBINING FINANCIAL STATEMENTS (UNAUDITED)
  Pro Forma Condensed Combining Balance Sheet as of March 31, 1996.........................................       F-31
  Pro Forma Condensed Combining Statement of Operations for the three months ended
   March 31, 1996..........................................................................................       F-32
  Pro Forma Condensed Combining Statement of Operations for the three months ended December 31, 1995.......       F-33
  Pro Forma Condensed Combining Statement of Operations for the year ended September 30, 1995..............       F-34
  Notes to Pro Forma Condensed Combining Financial Statements..............................................       F-35
</TABLE>
 
                                      F-1
<PAGE>
                          INDEPENDENT AUDITORS' REPORT
 
The Board of Directors and Stockholders
AccuMed International, Inc.:
 
    We  have  audited the  accompanying  consolidated balance  sheet  of AccuMed
International, Inc. and subsidiaries  as of December 31,  1995, and the  related
consolidated  statements of operations, stockholders' equity, and cash flows for
the  three  months  ended  December  31,  1995.  These  consolidated   financial
statements   are   the   responsibility  of   the   Company's   management.  Our
responsibility  is  to  express  an  opinion  on  these  consolidated  financial
statements based on our audit.
 
    We  conducted  our  audit  in accordance  with  generally  accepted auditing
standards. Those standards require that we plan and perform the audit to  obtain
reasonable assurance about whether the financial statements are free of material
misstatement.  An audit includes examining, on a test basis, evidence supporting
the amounts and disclosures in the financial statements. An audit also  includes
assessing  the  accounting principles  used  and significant  estimates  made by
management, as well as evaluating the overall financial statement  presentation.
We believe that our audit provides a reasonable basis for our opinion.
 
    In  our  opinion, the  consolidated financial  statements referred  to above
present fairly,  in all  material respects,  the financial  position of  AccuMed
International, Inc. and subsidiaries as of December 31, 1995, and the results of
their  operations and their cash  flows for the three  months ended December 31,
1995, in conformity with generally accepted accounting principles.
 
                                          /s/ KPMG PEAT MARWICK LLP
 
Chicago, Illinois
April 5, 1996
 
                                      F-2
<PAGE>
                        INDEPENDENT ACCOUNTANTS' REPORT
 
The Stockholders
Alamar Biosciences, Inc.
 
    We have audited the accompanying balance sheet of Alamar Biosciences,  Inc.,
as  of September  30, 1995 and  related statements  of operations, stockholders'
equity, and cash flows for  the years ended September  30, 1994 and 1995.  These
financial  statements are  the responsibility  of the  Company's management. Our
responsibility is to express an opinion  on these financial statements based  on
our audits.
 
    We  conducted  our audits  in  accordance with  generally  accepted auditing
standards. Those standards require that we plan and perform the audits to obtain
reasonable assurance about whether the financial statements are free of material
misstatement. An audit includes examining, on a test basis, evidence  supporting
the  amounts and disclosures in the financial statements. An audit also includes
assessing the  accounting  principles used  and  significant estimates  made  by
management,  as well as evaluating the overall financial statement presentation.
We believe that our audits provided a reasonable basis for our opinion.
 
    In our opinion, the financial  statements referred to above present  fairly,
in all material respects, the financial position of Alamar Biosciences, Inc., at
September 30, 1995, and the results of its operations and its cash flows for the
years  ended September 30, 1994 and  1995, in conformity with generally accepted
accounting principles.
 
    The accompanying financial statements have  been prepared assuming that  the
Company will continue as a going concern. As discussed in Note 3, the Company is
involved  in  litigation and  is proposing  to merge  with another  company. The
Company has taken certain  actions to meet cash  flow requirements, including  a
reduction  in work force,  overhead and product  development, until the disputes
can be resolved. There can be no assurance that the Company's efforts related to
the lawsuits will  be successful. In  addition, there can  be no assurance  that
combined  operations of the proposed merger will produce the necessary cash flow
required. These factors raise substantial  doubt about the Company's ability  to
continue  as  a  going concern.  The  financial  statements do  not  include any
adjustments that might be necessary  if the Company is  unable to continue as  a
going concern.
 
                                          /s/ COOPERS & LYBRAND L.L.P.
 
Sacramento, California
November 19, 1995
 
                                      F-3
<PAGE>
                  ACCUMED INTERNATIONAL, INC. AND SUBSIDIARIES
 
                          CONSOLIDATED BALANCE SHEETS
 
<TABLE>
<CAPTION>
                                                                    SEPTEMBER 30,    DECEMBER 31,
                                                                         1995            1995
                                                                    --------------  --------------  MARCH 31, 1996
                                                                                                    --------------
                                                                                                     (UNAUDITED)
<S>                                                                 <C>             <C>             <C>
ASSETS
 
Current assets:
  Cash and cash equivalents.......................................  $      716,211  $      180,508  $    1,382,128
  Restricted cash.................................................         185,000         363,000         310,000
  Accounts receivable.............................................         245,092         874,712         869,357
  Prepaid expenses and deposits...................................          73,260         124,836         113,453
  Production inventory............................................         314,006       1,143,120       1,348,678
                                                                    --------------  --------------  --------------
      Total current assets........................................       1,533,569       2,686,176       4,023,616
                                                                    --------------  --------------  --------------
Fixed assets, net.................................................         411,126         528,402         677,843
Notes receivable..................................................         700,000              --              --
Deferred merger costs.............................................         299,650              --              --
Intangible assets.................................................              --       2,644,556       4,493,055
Other assets......................................................          44,621         115,069         121,577
                                                                    --------------  --------------  --------------
                                                                    $    2,988,966  $    5,974,203  $    9,316,091
                                                                    --------------  --------------  --------------
                                                                    --------------  --------------  --------------
 
LIABILITIES AND STOCKHOLDERS' EQUITY
 
Current liabilities:
  Accounts payable................................................  $    1,017,103  $    2,005,861  $    2,481,492
  Other current liabilities.......................................         203,497         870,313         687,218
  Deferred revenue................................................         470,238       1,454,450              --
  Notes payable...................................................              --         726,514         956,960
  Capital lease obligations due within one year...................          89,406          88,270          82,093
                                                                    --------------  --------------  --------------
      Total current liabilities...................................       1,780,244       5,145,408       4,207,763
                                                                    --------------  --------------  --------------
Long-term portion of capital lease obligations....................         110,806          89,810          67,766
Deferred rent.....................................................              --          10,278          11,836
Stockholders' equity:
  Common stock, $.01 par value, 30,000,000 shares authorized,
   10,929,339 shares issued and outstanding at September 30, 1995,
   15,571,184 at December 31, 1995 and 16,605,034 at March 31,
   1996...........................................................         109,293         155,712         166,050
  Additional paid in capital......................................      18,008,086      23,334,495      30,273,297
  Accumulated deficit.............................................     (17,019,463)    (22,761,500)    (25,410,621)
                                                                    --------------  --------------  --------------
      Total stockholders' equity..................................       1,097,916         728,707       5,028,726
                                                                    --------------  --------------  --------------
                                                                    $    2,988,966  $    5,974,203  $    9,316,091
                                                                    --------------  --------------  --------------
                                                                    --------------  --------------  --------------
</TABLE>
 
          See accompanying notes to consolidated financial statements.
 
                                      F-4
<PAGE>
                  ACCUMED INTERNATIONAL, INC. AND SUBSIDIARIES
 
                     CONSOLIDATED STATEMENTS OF OPERATIONS
 
<TABLE>
<CAPTION>
                                          YEARS ENDED SEPTEMBER 30,    THREE MONTHS
                                          --------------------------  ENDED DECEMBER
                                              1994          1995         31, 1995
                                          ------------  ------------  --------------   THREE MONTHS ENDED MARCH
                                                                                                 31,
                                                                                      --------------------------
                                                                                          1995          1996
                                                                                      ------------  ------------
                                                                                      (UNAUDITED)   (UNAUDITED)
<S>                                       <C>           <C>           <C>             <C>           <C>
Sales...................................  $  1,161,822  $    514,776   $    100,130   $    171,845  $  1,187,701
Cost of sales...........................    (1,549,350)   (1,431,187)      (338,730)      (219,448)     (595,210)
                                          ------------  ------------  --------------  ------------  ------------
Gross profit (loss).....................      (387,528)     (916,411)      (238,600)       (47,603)      592,491
                                          ------------  ------------  --------------  ------------  ------------
Operating expenses:
  General and administrative............     1,219,249     2,094,890      1,418,797        274,827       914,057
  Research and development..............       580,180       386,882      3,997,600         68,935     4,074,786
  Sales and marketing...................       959,519       309,208          7,197         28,106       393,177
                                          ------------  ------------  --------------  ------------  ------------
      Total operating expenses..........     2,758,948     2,790,980      5,423,594        371,868     5,382,020
                                          ------------  ------------  --------------  ------------  ------------
Operating loss..........................    (3,146,476)   (3,707,391)    (5,662,194)      (419,471)   (4,789,529)
                                          ------------  ------------  --------------  ------------  ------------
Other income (expense):
  Interest income.......................        46,624         7,949          4,748            177         5,837
  Interest expense......................       (12,836)      (46,657)       (10,862)       (11,528)     (326,831)
  Other.................................           298       (13,211)       (72,929)            --     2,462,252
                                          ------------  ------------  --------------  ------------  ------------
      Total other income (expense)......        34,086       (51,919)       (79,043)       (11,351)    2,141,258
                                          ------------  ------------  --------------  ------------  ------------
Loss before income taxes................    (3,112,390)   (3,759,310)    (5,741,237)      (430,822)   (2,648,271)
Income tax expense......................           800           800            800            200           850
                                          ------------  ------------  --------------  ------------  ------------
      Net loss..........................  $ (3,113,190) $ (3,760,110)  $ (5,742,037)  $   (431,022) $ (2,649,121)
                                          ------------  ------------  --------------  ------------  ------------
                                          ------------  ------------  --------------  ------------  ------------
Net loss per share......................  $      (0.65) $      (0.59)  $      (0.49)  $      (0.09) $      (0.17)
                                          ------------  ------------  --------------  ------------  ------------
                                          ------------  ------------  --------------  ------------  ------------
Weighted average common shares
 outstanding............................     4,776,139     6,375,627     11,742,980      4,957,735    15,797,315
                                          ------------  ------------  --------------  ------------  ------------
                                          ------------  ------------  --------------  ------------  ------------
</TABLE>
 
          See accompanying notes to consolidated financial statements.
 
                                      F-5
<PAGE>
                  ACCUMED INTERNATIONAL, INC. AND SUBSIDIARIES
 
                CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY
 
<TABLE>
<CAPTION>
                                                   COMMON STOCK        ADDITIONAL                     TOTAL
                                              -----------------------    PAID-IN    ACCUMULATED   STOCKHOLDERS'
                                                SHARES      AMOUNT       CAPITAL      DEFICIT        EQUITY
                                              ----------  -----------  -----------  ------------  -------------
<S>                                           <C>         <C>          <C>          <C>           <C>
Balances at September 30, 1993..............   4,710,553  $    47,106  $14,243,494  ($10,146,163)  $ 4,144,437
Issuances of common stock:
  November 1993 at $0.80....................       3,491           35        2,758           --          2,793
  December 1993 at $0.80....................       1,250           12          988           --          1,000
  December 1993 at $2.50....................      50,000          500      124,500           --        125,000
  March 1994 at $2.07.......................      29,000          290       59,710           --         60,000
  August 1994 at $2.50......................      50,000          500      124,500           --        125,000
Net loss....................................          --           --           --   (3,113,190)    (3,113,190)
                                              ----------  -----------  -----------  ------------  -------------
Balances at September 30, 1994..............   4,844,294       48,443   14,555,950  (13,259,353)     1,345,040
                                              ----------  -----------  -----------  ------------  -------------
Issuances of common stock:
  November 1994 at $2.50....................     100,000        1,000      249,000           --        250,000
  March 1995 at $0.62.......................      80,645          807       41,693           --         42,500
  May 1995 at $.625.........................   2,648,400       26,484    1,369,115           --      1,395,599
  August 1995 at $.625......................   3,000,000       30,000    1,505,887           --      1,535,887
  August 1995 at $.625......................     240,000        2,400      128,100           --        130,500
  August 1995 at $1.00......................      16,000          160       15,840           --         16,000
Issuances of warrants.......................          --           --      142,500           --        142,500
Net loss....................................          --           --           --   (3,760,110)    (3,760,110)
                                              ----------  -----------  -----------  ------------  -------------
Balances at September 30, 1995..............  10,929,339      109,294   18,008,085  (17,019,463)     1,097,916
                                              ----------  -----------  -----------  ------------  -------------
Issuances of common stock:
  October 1995 at $0.625....................      50,000          500       30,750           --         31,250
  November 1995 at $0.625...................      20,000          200       12,300           --         12,500
  December 1995 at $1.125...................   4,431,845       44,318    4,941,508           --      4,985,826
Issuance of warrants........................          --           --      308,252           --        308,252
Warrants exercised December 1995 @ $0.25....     140,000        1,400       33,600           --         35,000
Net loss....................................          --           --           --   (5,742,037)    (5,742,037)
                                              ----------  -----------  -----------  ------------  -------------
Balances at December 31, 1995...............  15,571,184      155,712   23,334,495  (22,761,500)       728,707
                                              ----------  -----------  -----------  ------------  -------------
Issuances of common stock (unaudited):
  January 1996 at $1.125....................      60,000          600       66,900           --         67,500
  March 1996 at $5.50.......................     940,955        9,410    5,165,842           --      5,175,252
Issuances of warrants (unaudited)...........          --           --    1,689,464           --      1,689,464
Stock options exercised (unaudited):
  March 1996 at $0.63.......................       7,895           78        4,895           --          4,974
  March 1996 at $1.39.......................       5,000           50        6,900           --          6,950
Warrants exercised (unaudited):
  January 1996 at $0.25.....................      17,500          175        4,200           --          4,375
  March 1996 at $0.25.......................       2,500           25          600           --            625
Net loss (unaudited)........................          --           --           --   (2,649,121)    (2,649,121)
                                              ----------  -----------  -----------  ------------  -------------
  Balances at March 31, 1996 (unaudited)....  16,605,034  $   166,050  $30,273,297  ($25,410,621)  $ 5,028,726
                                              ----------  -----------  -----------  ------------  -------------
                                              ----------  -----------  -----------  ------------  -------------
</TABLE>
 
          See accompanying notes to consolidated financial statements.
 
                                      F-6
<PAGE>
                  ACCUMED INTERNATIONAL, INC. AND SUBSIDIARIES
 
                     CONSOLIDATED STATEMENTS OF CASH FLOWS
 
<TABLE>
<CAPTION>
                                              YEARS ENDED SEPTEMBER
                                                       30,              THREE MONTHS
                                             ------------------------  ENDED DECEMBER
                                                1994         1995         31, 1995
                                             -----------  -----------  --------------     THREE MONTHS ENDED
                                                                                              MARCH 31,
                                                                                       ------------------------
                                                                                          1995         1996
                                                                                       -----------  -----------
                                                                                       (UNAUDITED)  (UNAUDITED)
<S>                                          <C>          <C>          <C>             <C>          <C>
Cash flows from operating activities:
  Net loss.................................  $(3,113,190) $(3,760,110)  $ (5,742,037)   $(431,022)  ($2,649,121)
  Adjustments to reconcile net loss to net
   cash provided by (used in) operating
   activities:
    Depreciation and amortization..........      216,603      235,529         38,400       64,964      133,344
    Write-off of acquired in-process
     research and development..............           --           --      3,965,000           --    3,499,727
    Expenses paid with issuance of common
     stock.................................       60,000      166,000        606,750           --           --
    Expenses paid with issuance of
     warrants..............................           --      142,500             --           --    1,350,390
    Loss on disposal of assets.............           --       63,609             --           --           --
    Changes in assets and liabilities:
      Restricted cash......................           --     (185,000)      (178,000)          --       53,000
      Accounts receivable..................     (389,087)     271,145        107,906      127,665        5,355
      Prepaid expenses and deposits........       44,417       20,035          1,833       15,906       11,383
      Production inventory.................     (338,395)     193,796         64,999       45,600     (205,558)
      Other assets.........................           --       (1,525)        80,059       (2,885)      (6,508)
      Accounts payable.....................       52,762      766,900        168,460      106,084      475,631
      Other current liabilities............       53,150        8,571        155,941       16,513     (115,595)
      Deferred merger costs................           --     (299,650)      (750,352)          --           --
      Deferred revenue.....................           --      470,238        946,429           --   (1,454,450)
                                             -----------  -----------  --------------  -----------  -----------
      Net cash provided by (used in)
       operating activities................   (3,413,740)  (1,907,962)      (534,612)     (57,175)   1,097,598
                                             -----------  -----------  --------------  -----------  -----------
Cash flows from investing activities:
  Purchase of fixed assets.................      (42,657)     (49,834)       (62,196)          --     (200,685)
  Acquisition of business, net.............           --           --         48,237           --           --
                                             -----------  -----------  --------------  -----------  -----------
    Net cash used in investment
     activities............................      (42,657)     (49,834)       (13,959)          --     (200,685)
                                             -----------  -----------  --------------  -----------  -----------
Cash flows from financing activities:
  Proceeds from issuances of common
   stock...................................      253,793    3,830,250         35,000       50,000       16,924
  Common stock issuance costs..............           --     (625,764)            --       (7,500)          --
  Proceeds from issuance of notes
   payable.................................           --           --             --           --      314,446
  Notes receivable issued..................           --     (700,000)            --           --           --
  Payment of capital lease obligation......      (32,312)     (50,115)       (22,132)     (19,290)     (26,663)
                                             -----------  -----------  --------------  -----------  -----------
    Net cash provided by financing
     activities............................      221,481    2,454,371         12,868       23,210      304,707
                                             -----------  -----------  --------------  -----------  -----------
Net increase (decrease) in cash and cash
 equivalents...............................   (3,234,916)     496,575       (535,703)     (33,965)   1,201,620
Cash and cash equivalents at beginning of
 period....................................    3,454,552      219,636        716,211       42,173      180,508
                                             -----------  -----------  --------------  -----------  -----------
Cash and cash equivalents at end of
 period....................................  $   219,636  $   716,211   $    180,508    $   8,208    $1,382,128
                                             -----------  -----------  --------------  -----------  -----------
                                             -----------  -----------  --------------  -----------  -----------
</TABLE>
 
          See accompanying notes to consolidated financial statements.
 
                                      F-7
<PAGE>
                  ACCUMED INTERNATIONAL, INC. AND SUBSIDIARIES
                 NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS
 
1.  DESCRIPTION OF BUSINESS
    AccuMed International, Inc. and subsidiaries develop, manufacture and market
state-of-the-art medical devices and instruments for laboratories, hospitals and
others.  The Company was founded in January  1988, incorporated in June 1988 and
reincorporated in Delaware in 1995.
 
2.  SIGNIFICANT ACCOUNTING POLICIES
 
  PRINCIPLES OF CONSOLIDATION
 
    The consolidated  financial  statements  include  the  accounts  of  AccuMed
International,   Inc.  and   its  subsidiary   ("the  Company")(formerly  Alamar
Biosciences, Inc.). All significant intercompany accounts and transactions  have
been eliminated in consolidation.
 
  REVENUE RECOGNITION
 
    The  Company recognizes revenue from sale  of products when the products are
shipped to its customers. Contract revenue from research agreements is  recorded
when  earned and as the related costs  are incurred. Payments received which are
related to future performance are deferred and recognized as revenue when earned
over future performance periods.
 
  CASH AND CASH EQUIVALENTS
 
    Cash and cash equivalents include  cash in banks and short-term  investments
with original maturities of three months or less.
 
  RESTRICTED CASH
 
    The  restricted  cash  as  of  December 31,  1995  consists  of  $310,000 of
certificates of deposit with maturities less than one year which were placed  as
collateral against a loan made by a financial institution and $53,000 held in an
escrow account.
 
    Restricted  cash  as of  September 30,  1995 includes  an escrow  deposit of
$150,000 pursuant to an agreement entered  into in 1995 between the Company  and
an  outside legal counsel to the Company.  Pursuant to the agreement the Company
issued to their counsel 240,000 shares of common stock, net of issuance costs of
$19,500, in exchange for a reduction of $150,000 in accounts payable. The escrow
deposits were released in proportion to the amounts realized by the counsel from
the sale of such shares  in the public market. As  of December 31, 1995  $97,000
had been released from the escrow account with the remaining $53,000 released in
February 1996.
 
  INVENTORIES
 
    Inventories  consist primarily of  raw materials and  finished goods and are
stated at the lower of cost (average cost) or market. Cost is determined by  the
first-in first-out method (FIFO).
 
  FIXED ASSETS
 
    Fixed  assets are  stated at  cost. Depreciation  of plant  and equipment is
provided using the straight line method  over the estimated useful lives of  the
assets.  Amortization of leasehold improvements is provided on the straight-line
method over the shorter of the estimated  useful life of the improvement or  the
term  of  the lease.  Expenditures for  repairs and  maintenance are  charged to
operations when incurred.
 
  INTANGIBLE ASSETS
 
    Intangible assets  consists  principally  of  values  assigned  to  acquired
proprietary  technology and the excess of cost over the fair value of net assets
acquired. Such amounts  are being amortized  on a straight-line  basis over  the
expected  periods to be benefited, generally  10 years. The Company assesses the
 
                                      F-8
<PAGE>
                  ACCUMED INTERNATIONAL, INC. AND SUBSIDIARIES
         NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS -- (CONTINUED)
 
2.  SIGNIFICANT ACCOUNTING POLICIES (CONTINUED)
recoverability of the excess of cost over the fair value of net assets  acquired
by  determining whether the amortization of  the balance over its remaining life
can be  recovered  through  undiscounted  future operating  cash  flows  of  the
acquired operation.
 
  RESEARCH AND DEVELOPMENT COSTS
 
    Research and development costs are charged to operations as incurred.
 
  INCOME TAXES
 
    Deferred  tax  assets  and liabilities  are  recognized for  the  future tax
consequences attributable  to the  difference  between the  financial  statement
carrying  amount of  existing assets  and liabilities  and their  respective tax
bases and operating loss and tax  credit carryforwards. Deferred tax assets  and
liabilities  are measured using  enacted tax rates expected  to apply to taxable
income in the  years in  which those temporary  differences are  expected to  be
recovered  or settled. The  effect on deferred  tax assets and  liabilities of a
change in tax  rates is recognized  in income  in the period  that includes  the
enactment date.
 
  NET LOSS PER SHARE
 
    Net  loss per share is computed using  the weighted average number of common
shares outstanding  during  each period.  Common  equivalent shares  from  stock
options  and  warrants are  excluded  from the  computation  as their  effect is
antidilutive.
 
  USE OF ESTIMATES
 
    Management of the  Company has made  a number of  estimates and  assumptions
relating  to  the reporting  of  assets and  liabilities  and the  disclosure of
contingent assets  and  liabilities to  prepare  these financial  statements  in
conformity  with generally accepted accounting  principles. Actual results could
differ from those estimates.
 
  INTERIM FINANCIAL STATEMENTS
 
    The consolidated financial  statements as  of March  31, 1995  and 1996  are
unaudited.  In the opinion  of management, the  unaudited consolidated financial
statements  contain  all  adjustments  (consisting  of  only  normal   recurring
adjustments)  necessary to present fairly the  financial position and results of
operations for such periods. Results of  operations for interim periods are  not
necessarily indicative of results that will be achieved for the entire year.
 
3.  BASIS OF PRESENTATION FOR THE FISCAL YEARS ENDED SEPTEMBER 30, 1994 AND 1995
    In  November 1994,  the Company  filed a  lawsuit in  United States District
Court against  Difco,  a  competitor, alleging  misappropriation  of  its  trade
secrets,  and is seeking  a constructive trust over  a patent covering important
aspects of  the Company's  technology issued  to Difco.  The patent,  which  was
issued  to Difco as a  result of its alleged  misappropriation, covers the basic
technology used in  the Company's  manual testing kits.  Difco has  agreed to  a
Stipulated Order that it will not market or sell products based on the patent in
controversy  unless it gives the Company 60 days advance notice. Upon receipt of
such notice, the  Company would  have an  opportunity to  renew its  Preliminary
Injunction Motion originally scheduled for February 1995, but suspended in light
of  the  Stipulated Order.  The  judge has  allowed  Difco to  file  a complaint
alleging infringement  of the  disputed  patent by  the  Company. A  hearing  on
Difco's  summary judgment against the Company was held on September 8, 1995. Due
to the discovery of the alleged misappropriation, the Company declined to accept
the proceeds of a $2,500,000 financing  scheduled to close on November 10,  1994
and  implemented significant cutbacks  in operations pending  the outcome of the
lawsuit, including the elimination of its domestic sales force and suspension of
 
                                      F-9
<PAGE>
                  ACCUMED INTERNATIONAL, INC. AND SUBSIDIARIES
         NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS -- (CONTINUED)
 
3.  BASIS OF PRESENTATION FOR THE FISCAL YEARS ENDED SEPTEMBER 30, 1994 AND
1995 (CONTINUED)
research and development efforts  and contract research. The  judge in the  case
has  set a trial date of January 28, 1996,  to hear the merits of the case. (The
above referenced litigation has been subsequently settled, see note 15).
 
    On  May  2,  1995,  the  Company  received  notice  that  MicroScan,   Inc.,
(MicroScan),  a wholly-owned  subsidiary of  Dade International,  Inc., filed an
intervention complaint with the court against both the Company and Difco,  which
alleges   that  one  of  the  Company's  founders  misappropriated  confidential
information of MicroScan while an employee of MicroScan prior to co-founding the
Company in 1988, and used such information to develop the Company's  technology.
The  Company filed a motion  for summary judgment and,  on October 17, 1995, the
Court  granted  the  Company's  summary   judgment  motion  and  dismissed   the
intervention complaint with prejudice.
 
    As  discussed in  note 7 and  note 16,  the Company merged  with AccuMed and
loaned AccuMed $700,000 to  support their operations.  In addition, the  Company
completed two financings in 1995 and received advances for a licensing agreement
which  substantially  improved  its  cash  position.  The  Company  closed  it's
Sacramento manufacturing facility in August  1995 and has significantly  reduced
overhead  costs. Manufacturing and distribution agreements have been established
with AccuMed.
 
    There can be no  assurance that combined operations  of the proposed  merger
will  produce the necessary cash flow  required. The financial statements do not
include any adjustments  that might  be necessary if  the Company  is unable  to
continue as a going concern.
 
4.  CHANGE IN FISCAL YEAR
    In  1995,  the Company  changed to  a  fiscal year  ending December  31. The
consolidated statement of  operations for  the three months  ended December  31,
1994 (unaudited) is presented for comparative purposes only.
 
<TABLE>
<CAPTION>
                                                                                               THREE MONTHS ENDED
CONSOLIDATED STATEMENT OF OPERATIONS (UNAUDITED)                                               DECEMBER 31, 1994
- --------------------------------------------------------------------------------------------  --------------------
<S>                                                                                           <C>
Sales.......................................................................................      $    100,614
Less cost of sales..........................................................................          (227,300)
                                                                                                    ----------
Gross profit (loss).........................................................................          (126,686)
                                                                                                    ----------
Operating expenses:
  General and administrative................................................................           384,181
  Research and development..................................................................           150,983
  Sales and marketing.......................................................................           171,420
                                                                                                    ----------
    Total operating expenses................................................................           706,584
                                                                                                    ----------
Operating loss..............................................................................          (833,270)
                                                                                                    ----------
Other income (expense):
  Interest income...........................................................................               664
  Interest expense..........................................................................           (13,267)
                                                                                                    ----------
    Total other income (expense)............................................................           (12,603)
                                                                                                    ----------
Loss before income taxes....................................................................          (845,873)
Income tax expense..........................................................................               200
                                                                                                    ----------
Net loss....................................................................................      $   (846,073)
                                                                                                    ----------
                                                                                                    ----------
Net loss per share..........................................................................      $      (0.17)
                                                                                                    ----------
                                                                                                    ----------
Weighted average common shares outstanding..................................................         4,894,294
                                                                                                    ----------
                                                                                                    ----------
</TABLE>
 
                                      F-10
<PAGE>
                  ACCUMED INTERNATIONAL, INC. AND SUBSIDIARIES
         NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS -- (CONTINUED)
 
5.  ACCOUNTS RECEIVABLE
    Accounts receivable includes the following at:
 
<TABLE>
<CAPTION>
                                                                                     SEPTEMBER 30,  DECEMBER 31,
                                                                                         1995           1995
                                                                                     -------------  -------------
<S>                                                                                  <C>            <C>
Trade receivables..................................................................   $   221,767    $   842,994
Contract refunds due...............................................................        43,050         43,050
Other receivables..................................................................            --          6,600
Allowance for doubtful accounts....................................................       (19,725)       (17,932)
                                                                                     -------------  -------------
  Total............................................................................   $   245,092    $   874,712
                                                                                     -------------  -------------
                                                                                     -------------  -------------
</TABLE>
 
    Accounts receivable are carried at their net realizable value.
 
6.  FIXED ASSETS
    Fixed assets includes the following at:
 
<TABLE>
<CAPTION>
                                                                       ESTIMATED    SEPTEMBER 30,  DECEMBER 31,
                                                                      USEFUL LIFE       1995           1995
                                                                     -------------  -------------  -------------
<S>                                                                  <C>            <C>            <C>
Equipment..........................................................    3 - 5 years   $   776,867    $ 1,029,554
Leasehold improvements.............................................   5 - 13 years            --         60,947
Equipment under capital lease......................................        5 years       299,090        299,090
                                                                                    -------------  -------------
                                                                                       1,075,957      1,389,591
Less accumulated depreciation and amortization.....................                      664,831        861,189
                                                                                    -------------  -------------
                                                                                     $   411,126    $   528,402
                                                                                    -------------  -------------
                                                                                    -------------  -------------
</TABLE>
 
7.  NOTES RECEIVABLE
    Pursuant  to  the  merger  agreement (note  16),  the  Company  extended the
following loans,  which bear  interest at  10%  per annum,  to AccuMed  Inc.  to
provide working capital.
 
<TABLE>
<CAPTION>
DATE                                                                                  AMOUNT
- ----------------------------------------------------------------------------------  ----------
<S>                                                                                 <C>
May 9, 1995.......................................................................  $  150,000
May 31, 1995......................................................................     125,000
June 28, 1995.....................................................................     125,000
August 7, 1995....................................................................     125,000
August 29, 1995...................................................................     175,000
                                                                                    ----------
                                                                                    $  700,000
                                                                                    ----------
                                                                                    ----------
</TABLE>
 
    On November 20, 1995, the Company's Board of Directors agreed to consolidate
the  various notes above into  a single $700,000 note.  Upon consummation of the
merger on December 29, 1995, such amounts have been eliminated in consolidation.
 
                                      F-11
<PAGE>
                  ACCUMED INTERNATIONAL, INC. AND SUBSIDIARIES
         NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS -- (CONTINUED)
 
8.  OTHER CURRENT LIABILITIES
    Other current liabilities consist of the following at:
 
<TABLE>
<CAPTION>
                                                                           SEPTEMBER 30,  DECEMBER 31,
                                                                               1995           1995
                                                                           -------------  -------------
<S>                                                                        <C>            <C>
Deferred rent............................................................   $        --    $        --
Payroll and related costs................................................        84,970        286,998
Sales & use taxes........................................................           908             --
Customer deposits........................................................         2,169         47,169
Accrued rent.............................................................        89,750         64,255
Other accrued expenses...................................................        18,913        471,891
                                                                           -------------  -------------
    Total................................................................   $   203,497    $   870,313
                                                                           -------------  -------------
                                                                           -------------  -------------
</TABLE>
 
9.  DEFERRED REVENUE
    On May 3,  1995, the Company  entered into  a letter of  intent with  Becton
Dickinson, Inc., (Becton) pursuant to which the Company agreed to grant Becton a
semi-exclusive, worldwide license of the Company's alamarBlue-TM- technology for
a  specific field of use.  On October 10, 1995,  the license agreement (License)
between the Company and Becton was executed.
 
    On signing the letter of intent,  Becton paid the Company $100,000. On  June
28,  1995, Becton paid an  additional $400,000 to the  Company. In October 1995,
the Company received $250,000 for executing the license agreement, and  $750,000
upon  the initial  favorable resolution  of the  MicroScan lawsuit.  In February
1996, Becton paid an  additional $1,000,000 upon  final favorable resolution  of
the  MicroScan  lawsuit  and  $1,000,000  in  March  1996  upon  final favorable
resolution of the  Difco lawsuit. Of  this last amount,  $500,000 is  creditable
against future royalties.
 
    The  $1,500,000 received by  the Company through December  31, 1995 has been
deferred pending  resolution  of  the  above  mentioned  lawsuits.  Due  to  the
settlement  of the  lawsuits in  February and March  1996, all  of the remaining
deferred revenues will become income during the quarter ending March 31, 1996.
 
10. NOTES PAYABLE
    Notes payable consist of the following at:
 
<TABLE>
<CAPTION>
                                                                                 DECEMBER 31,
                                                                                     1995
                                                                                 -------------
<S>                                                                              <C>
Note payable to bank, guaranteed by stockholders, interest at 11.75% payable
 monthly with principal payment due on April 30, 1996..........................   $   100,000
Note payable to bank, guaranteed by stockholders, interest at 10.75% payable
 monthly with principal payment due on April 30, 1996..........................       455,000
Notes payable to stockholders, interest at 10%, due on demand..................        90,610
Bank line of credit, collateralized by substantially all assets of AccuMed
 International Limited, a wholly-owned subsidiary of the Company, due on
 demand........................................................................        80,904
                                                                                 -------------
                                                                                  $   726,514
                                                                                 -------------
                                                                                 -------------
</TABLE>
 
11. STOCKHOLDERS' EQUITY
    The Board of Directors is authorized to issue 5,000,000 shares of  preferred
stock,  the terms and rights  to be established upon  issuance. Of these shares,
382,500 have been designated as Series A 8% Cumulative Preferred Stock. None  of
these shares have been issued.
 
                                      F-12
<PAGE>
                  ACCUMED INTERNATIONAL, INC. AND SUBSIDIARIES
         NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS -- (CONTINUED)
 
11. STOCKHOLDERS' EQUITY (CONTINUED)
  WARRANTS
 
    In  February 1995, the Company granted warrants to a consulting firm for the
right to purchase 140,000  shares of the  Company's common stock  at a price  of
$.25  per share in lieu of the Company's liability of $105,000 to the consulting
firm. These warrants were exercised in  December 1995. In May 1995, the  Company
granted  warrants to a placement agent for  the right to purchase 100,000 shares
of the Company's common stock at a  price of $.25 per share as compensation  for
services  performed relating to the canceled  $2.5 million financing in November
1994. The warrants expire in August 2000. The difference between the fair market
value of the  stock and the  common stock  purchase price has  been recorded  as
issuance of common stock warrants.
 
    Additionally,  contingent upon consummation of the merger, a consulting firm
was granted a five year warrant to purchase up to 750,000 shares of common at  a
price  of $1.25  per share,  subject to certain  limitations. The  fair value of
these warrants has been recorded as issuance of common stock warrants.
 
    At December  31, 1995,  outstanding warrants  to purchase  shares of  common
stock at any time through the expiration date were as follows:
 
<TABLE>
<CAPTION>
  SHARES       PRICE      EXPIRATION DATE
- ----------  -----------  -----------------
<S>         <C>          <C>
 2,702,905        5.00           10/97
   104,000       2.125           10/97
   420,000        0.25           12/99
   175,000        5.00           12/99
    25,275        5.00            4/00
   264,840       0.625            5/00
   300,000       0.625            8/00
   100,000        0.25            8/00
    79,280        0.82            8/00
    79,280        1.64            8/00
    79,280        2.47            8/00
   750,000        1.25           12/00
    75,000       1.125           12/00
- ----------
 5,154,860
- ----------
- ----------
</TABLE>
 
  STOCK OPTION PLAN
 
    The Company has in effect three stock option plans for certain employees. On
October  15, 1990, the Company  adopted the 1990 Stock  Option Plan (1990 Plan).
The Company's employees, directors, and consultants are eligible to  participate
in  the Plan. The Company has reserved 177,324 shares of authorized but unissued
common stock for issuance under the 1990 Plan.
 
    On February 4, 1992,  the Company adopted the  1992 Stock Option Plan  (1992
Plan),  for  which the  Company  has reserved  an  additional 405,000  shares of
authorized but unissued  common stock. Options  issued under the  1992 Plan  are
issued,  exercisable, and  governed by substantially  the same  terms as options
issued under the 1990 Plan,  with the exception of  provisions in the 1990  Plan
accelerating  the vesting of options in instances of acquisition or liquidation,
which have been deleted from the 1992 Plan.
 
    On November 17,  1992, the  Board of  Directors also  approved an  increase,
approved by the stockholders on March 2, 1993, of the number of shares of common
stock reserved for issuance under the 1992 Plan from 405,000 to 505,000 shares.
 
                                      F-13
<PAGE>
                  ACCUMED INTERNATIONAL, INC. AND SUBSIDIARIES
         NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS -- (CONTINUED)
 
11. STOCKHOLDERS' EQUITY (CONTINUED)
    On  December 29, 1995, the Company adopted  the 1995 Stock Option Plan (1995
Plan), for which  the Company  has reserved  an additional  1,500,000 shares  of
authorized  but unissued  common stock. Options  issued under the  1995 Plan are
issued, exercisable, and  governed by  substantially the same  terms as  options
issued under the 1992 Plan.
 
Terms of the Plans include:
 
    EXERCISE  PRICE -- For  the 1990 Plan,  fair market value  determined by the
Board of Directors and not less than 110% of the determined fair market value in
certain instances. For  the 1992 Plan  and the  1995 Plan fair  market value  as
determined  by the closing price of the Common  Stock on the date of issuance as
reported by NASDAQ.
 
    VESTING PERIOD --  A portion of  the options granted  to participants  vests
immediately  with  the  remaining  options  vesting  on  varying  schedules  not
exceeding three years from date of grant.
 
    EXERCISE PERIOD -- The  options are exercisable as  to be determined by  the
Board  of  Directors  provided  that  not  less  than  20%  of  the  options are
exercisable per year and no option shall be exercisable after ten years from the
date the option is granted.
 
    SHARES AVAILABLE -- The  maximum number of shares  that may be issued  under
the 1995 Plan is 1,500,000 at December 31, 1995.
 
    In  the  year  ended  September  30, 1994,  options  for  4,741  shares were
exercised at a price of  $0.80 per share and  options to purchase 81,834  shares
were  canceled. In the year ended September  30, 1995, no options were exercised
and options to purchase 123,023 shares were canceled. In the three months  ended
December  31, 1995,  no options  were exercised  and options  to purchase 32,917
shares were canceled.
 
                                      F-14
<PAGE>
                  ACCUMED INTERNATIONAL, INC. AND SUBSIDIARIES
         NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS -- (CONTINUED)
 
11. STOCKHOLDERS' EQUITY (CONTINUED)
 
    At  December 31, 1995, there were 1,586,845 shares under options outstanding
of which 913,499 were exercisable as follows:
 
<TABLE>
<CAPTION>
  GRANT                                EXERCISE    EXPIRATION
  DATE       GRANTED     EXERCISABLE     PRICE        DATE
- ---------  ------------  -----------  -----------  -----------
<S>        <C>           <C>          <C>          <C>
    11/88           627         627    $     .80        12/96
     5/91         4,028       4,028         1.39         5/96
     6/91        85,000      85,000         1.39         6/96
     3/92         1,153       1,153         1.39         3/97
     5/92       303,890     303,890         1.39         5/97
     7/92         5,625       5,625         1.39         7/97
    11/92         7,455       7,455         1.39        11/97
     3/93         5,000       5,000         1.39         3/98
     6/93         1,500       1,500         1.39         6/98
     7/93         1,500       1,500         1.39         7/98
     8/93         4,457       4,457         1.39         8/98
    11/93         3,450       3,450         1.39        11/98
     5/94        42,000      42,000         1.39         5/99
    11/94        10,160      10,160         0.75        11/99
     3/95        50,000      50,000         0.63         3/00
     4/95        10,000      10,000         1.44         4/00
     8/95         5,000       5,000         1.00        11/98
    12/95        36,000      36,000         1.00        12/00
    12/95     1,010,000     336,654         1.13        12/05
           ------------  -----------
              1,586,845     913,499
           ------------  -----------
           ------------  -----------
</TABLE>
 
    COMMON STOCK
 
    In March 1994, the Company finalized an agreement with one of the  Company's
distributors,  to  purchase the  Company's  securities in  exchange  for certain
distribution, licensing and product development  rights. Under the terms of  the
agreement, the Company was obligated to issue 200,000 shares of common stock for
a  total consideration of  $500,000. At September 30,  1994, the distributor had
purchased $250,000 in common stock. In November 1994, the distributor  purchased
the  remaining  $250,000 in  common stock  and was  issued warrants  to purchase
166,667 additional shares  of stock  at an exercise  price of  $3.00 per  share,
which warrants expired in December 1995.
 
    In  March 1995,  the Company granted  80,645 shares of  the Company's common
stock at a price $0.62 per share for a total of $42,500 (net of financing  costs
of $7,500) to a private investor.
 
    During  May  and August  1995, the  Company  completed two  separate private
offerings for an  aggregate of 5,648,400  shares of the  Company's common  stock
providing  net proceeds of  $2,931,486 (net of  $598,764 of financing expenses).
Also, the Company's placement agent received warrants for the future purchase of
564,840 shares of  the Company's common  stock at an  exercise price of  $0.625.
Such warrants expire from May through August 2000.
 
    In  August 1995, the  Company granted 16,000 shares  of the Company's common
stock at  a price  of $1  per share  to a  vendor as  compensation for  services
performed in lieu of the Company's liability of $16,000 to the vendor.
 
                                      F-15
<PAGE>
                  ACCUMED INTERNATIONAL, INC. AND SUBSIDIARIES
         NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS -- (CONTINUED)
 
11. STOCKHOLDERS' EQUITY (CONTINUED)
    In  October 1995,  the Company granted  to each nonemployee  director of the
Company 10,000 shares  of the Company's  common stock  at a price  of $.625  per
share as compensation for services performed. Compensation expense in the amount
of $31,250 has been reflected in the Consolidated Statements of Operations.
 
    In  November 1995, the Company granted 20,000 shares of the Company's common
stock at  a price  of $.625  per share  to a  director for  consulting  services
performed related to the merger. Consulting expense in the amount of $12,500 has
been reflected in the Consolidated Statements of Operations.
 
12. INCOME TAXES
    Effective  October 1, 1993, the Company  adopted the provisions of Statement
of Financial Accounting Standards No. 109 (SFAS No. 109), ACCOUNTING FOR  INCOME
TAXES.  SFAS No.  109 requires the  recognition of deferred  tax liabilities and
assets  resulting  from  differences  between  the  tax  basis  of  assets   and
liabilities  and their  reported amounts in  the financial  statements that will
result in taxable  or deductible amounts  in future years.  Prior to October  1,
1993,  the  Company accounted  for income  taxes  in accordance  with Accounting
Principles Board Opinion No. 11. The effect of this change on operating  results
for  the year  ended September  30, 1994,  the year  of implementation,  was not
material.
 
    The net deferred tax assets and liabilities consist of the following at:
 
<TABLE>
<CAPTION>
                                                         SEPTEMBER 30,
                                                   --------------------------  DECEMBER 31,
                                                       1994          1995          1995
                                                   ------------  ------------  -------------
<S>                                                <C>           <C>           <C>
Deferred tax assets:
  Net operating loss carryforwards...............  $  4,400,000  $  5,460,000   $ 6,520,000
  Research and development credits...............       285,000       295,000       300,000
  Capitalized research and development costs.....       274,000       280,000            --
  Depreciation...................................       158,000       175,000       162,000
  Other..........................................        58,000        65,000       114,000
                                                   ------------  ------------  -------------
      Total......................................     5,175,000     6,275,000     7,096,000
Valuation allowance..............................    (5,175,000)   (6,275,000)   (7,096,000)
                                                   ------------  ------------  -------------
  Net deferred tax assets and liabilities........  $         --  $         --   $        --
                                                   ------------  ------------  -------------
                                                   ------------  ------------  -------------
</TABLE>
 
    At  December  31,  1995,  the  Company  had  approximately  $18,641,000  and
$3,101,000  in  net  operating  losses  for  federal  and  state  tax  purposes,
respectively,  available  to   be  carried  forward   to  future  periods.   The
carryforwards  expire from 2003  to 2011 for  federal purposes and  from 2010 to
2011 for  state  purposes.  The  Company  also  has  credits  for  research  and
development  of $300,000 available to offset  future federal income taxes, which
expire from 2003 to 2011.
 
    As a result  of providing a  valuation allowance equal  to the deferred  tax
assets,  there is no federal  tax provision. The provision  for tax is the state
minimum tax.
 
    During the last three years, the Company  has had more than a 50% change  in
ownership.  Section  382  of  the Internal  Revenue  Code  and  comparable state
statutes impose certain annual limitations  on the utilization of net  operating
loss  carryforwards and  research and  development credits  that can  be used to
offset income in future periods.
 
                                      F-16
<PAGE>
                  ACCUMED INTERNATIONAL, INC. AND SUBSIDIARIES
         NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS -- (CONTINUED)
 
13. LEASES
 
OPERATING LEASES
 
    The Company leased its facilities and one automobile under operating leases.
Rental expense  is recognized  on a  straight-line basis  over the  life of  the
lease.  Rental expense for the  years ended September 30,  1994 and 1995 and for
the three months  ended December 31,  1995 was $172,000,  $156,000 and  $71,000,
respectively.
 
    Minimum future annual rent payments are as follows for years ending December
31:
 
<TABLE>
<CAPTION>
    YEAR         AMOUNT
- ------------  ------------
<S>           <C>
    1996      $    380,205
    1997           315,950
    1998           315,950
    1999           309,642
    2000           164,348
 Thereafter      1,861,574
              ------------
    Total     $  3,347,669
              ------------
              ------------
</TABLE>
 
CAPITAL LEASES
 
    In  July and  September 1994,  the Company  entered into  capital leases for
production equipment  in  the  total  amount of  $231,693,  with  principal  and
interest  payable monthly, interest at approximately 21%, and total residuals of
$34,754 due in July and September 1997.
 
    In October  1994,  the Company  entered  into  a capital  lease  for  office
equipment  in the total  amount of $29,000, with  principle and interest payable
monthly, interest at 8.71%, and a residual of $4,350, due in October 1997.
 
    Future minimum lease payments under capital lease obligations for the  years
ending December 31 are as follows:
 
<TABLE>
<CAPTION>
YEAR                                                AMOUNT
- ------------------------------------------------  ----------
<S>                                               <C>
1996............................................  $  114,417
1997............................................      97,598
                                                  ----------
                                                     212,015
Less amount representing interest...............     (33,935)
                                                  ----------
                                                     178,080
Less current portion............................     (88,270)
                                                  ----------
Long-term portion...............................  $   89,810
                                                  ----------
                                                  ----------
</TABLE>
 
14. SUPPLEMENTAL DISCLOSURE OF CASH FLOW INFORMATION
    Noncash investing and financing activities:
 
    During  the years  ended September  30, 1994  and 1995  and the  three month
period ending  December 31,  1995,  the Company  acquired assets  under  capital
leases in the amounts of $231,693, $21,341 and $0, respectively.
 
    During the three months ended December 31, 1995, the Company acquired all of
the  outstanding shares  of AccuMed,  Inc. in exchange  for common  stock of the
Company. The fair value of net  liabilities assumed was $828,476. Cash  acquired
totaled $48,237.
 
                                      F-17
<PAGE>
                  ACCUMED INTERNATIONAL, INC. AND SUBSIDIARIES
         NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS -- (CONTINUED)
 
14. SUPPLEMENTAL DISCLOSURE OF CASH FLOW INFORMATION (CONTINUED)
    Cash paid for interest and income taxes:
 
<TABLE>
<CAPTION>
                                                      YEARS ENDED
                                                     SEPTEMBER 30,
                                                  --------------------   THREE MONTHS ENDED
                                                    1994       1995      DECEMBER 31, 1995
                                                  ---------  ---------  --------------------
<S>                                               <C>        <C>        <C>
Cash paid during the period for:
  Interest......................................  $  12,836  $  46,657       $   19,122
  Income taxes..................................        800        800               --
</TABLE>
 
15. COMMITMENTS
 
  PFIZER AGREEMENT
 
    In October 1992, the Company entered into an agreement to conduct a research
project  for the purpose  of developing a testing  procedure for another entity.
The maximum payments the Company may receive for completion of the agreement are
$246,000. As of December 31, 1995, the Company had received payments of $184,500
based on procedures completed to date.
 
  LEGAL PROCEEDINGS
 
    In November 1994, the company initiated a civil action against a  competitor
for misappropriation of the Company's trade secrets covering a key technology in
the  Company's principle product line while  under a confidentiality and non-use
agreement. The  Company settled  this lawsuit  in February  1996 for  technology
rights and other consideration.
 
16. MERGER AND RELATED TRANSACTIONS
    On  December  29, 1995,  the Company  acquired  all of  the common  stock of
AccuMed, Inc. and its wholly owned subsidiary ("AccuMed"). AccuMed is  primarily
engaged in the research and development of diagnostic screening products for the
cytopathology   and   microbiology  clinical   laboratory,   pharmaceutical  and
veterinary segments  of the  health care  industry. Following  the  acquisition,
AccuMed  ceased to  exist as a  legal entity  and the merged  entity was renamed
AccuMed International, Inc. Pursuant  to the terms of  the merger agreement  the
Company  issued  3,931,401  unconditional  shares  of  common  stock  valued  at
$4,422,826 and  237,840 warrants  valued at  $68,252 on  December 29,  1995.  An
additional  1,881,910  shares  and  126,945  warrants  were  issued  to  AccuMed
stockholders on  December  29,  1995,  however, such  shares  and  warrants  are
contingent  and subject  to forfeiture  if specified  performance goals  are not
achieved by the merged  entity during the 24  months beginning January 1,  1996.
The  contingent consideration will  be recorded when the  goals are achieved and
will be computed based upon the stock price on such date.
 
    The acquisition  has  been  accounted  for  using  the  purchase  method  of
accounting,  and,  accordingly, the  purchase price  has  been allocated  to the
assets purchased and liabilities assumed based upon the fair values at the  date
of  acquisition. The  excess of the  purchase price  over the fair  value of the
tangible assets  has  been allocated  to  identifiable intangibles  of  acquired
proprietary  technology  ($2,644,556)  and in-process  research  and development
($3,965,000). The acquired  proprietary technology  will be  amortized over  the
expected  period to  be benefited, which  is estimated  to be 10  years with the
in-process research  and  development  charged  to operations  at  the  date  of
acquisition.
 
    The  contingency  associated with  940,955  shares and  63,472  warrants was
resolved (performance  goal  achieved) in  March  1996 resulting  in  contingent
consideration  of  approximately $5,273,000.  Such amount  will be  allocated to
acquired  proprietary  technology  ($1,775,000)  and  in-process  research   and
development ($3,498,000) and recorded in March 1996.
 
                                      F-18
<PAGE>
                  ACCUMED INTERNATIONAL, INC. AND SUBSIDIARIES
         NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS -- (CONTINUED)
 
16. MERGER AND RELATED TRANSACTIONS (CONTINUED)
    The  results  of  operations  of  AccuMed  have  not  been  included  in the
Consolidated Statements of  Operations because the  acquisition occurred at  the
end  of the three month period ended  December 31, 1995. The following pro forma
information has been prepared assuming that  the acquisition had taken place  at
the  beginning of  the respective  periods. The  pro forma  information includes
adjustments for  the amortization  of intangibles  and write-off  of  in-process
research  and development arising from the  transaction. The pro forma financial
information is not necessarily indicative of  the results of operations as  they
would have been had the transaction been effected on the assumed dates.
 
<TABLE>
<CAPTION>
                                                                      YEAR ENDED         THREE MONTHS
                                                                  SEPTEMBER 30, 1995  DECEMBER 31, 1995
                                                                  ------------------  ------------------
                                                                               (UNAUDITED)
<S>                                                               <C>                 <C>
Sales...........................................................    $    3,979,930      $    1,109,506
Net loss........................................................        (9,844,326)         (7,016,824)
Net loss per share..............................................    $        (1.00)     $         (.60)
</TABLE>
 
    The  Company,  AccuMed  and AccuMed  International  Limited,  a wholly-owned
subsidiary of  AccuMed,  entered  into  a  Manufacturing  and  Supply  Agreement
effective  as of July  1, 1995, (the Manufacturing  Agreement) pursuant to which
the Company purchased ID/MIC panels  from Sensititre Limited. The  Manufacturing
Agreement  was terminated on December 29, 1995.  Amounts paid to AccuMed for the
year ended September 30, 1995  under the Manufacturing Agreement were  $277,172.
Additionally,  the Company gave a deposit to AccuMed of $50,000 in October 1995,
for the purchase of supplies and raw materials in relation to this agreement.
 
    Pursuant to a  Distributor Agreement effective  as of July  1, 1995  between
AccuMed  and  the Company  (the  Distributor Agreement),  the  Company appointed
AccuMed as its distributor for microbiology products. AccuMed was the  exclusive
distributor  in the United  States, Canada, Mexico, Puerto  Rico, Japan, the Far
East, Australia and Europe (except  Italy, Portugal, Germany, Austria,  Belgium,
Cyprus,  Greece,  Luxembourg, The  Netherlands, Switzerland  and Turkey),  and a
non-exclusive distributor  in  Central  America, South  America,  Africa,  South
Africa,  Korea, East Europe, the Middle  East, China and Taiwan. The Distributor
Agreement was terminated on December 29,  1995. Amounts paid to AccuMed for  the
year ended September 30, 1995 under the Distributor Agreement were $35,677.
 
    Pursuant to an oral agreement (the Oral Agreement), the Company paid AccuMed
an  amount equal  to 30%  of AccuMed's  lease payment  (approximately $2,500 per
month) for its manufacturing  facility in Cleveland, Ohio  and 30% of  AccuMed's
general   overhead  expenses  in  consideration  for  AccuMed  providing  sales,
marketing and distribution services on  behalf of the Company. Such  arrangement
terminated  on December  29, 1995.  Amounts paid to  AccuMed for  the year ended
September 30, 1995, under this Oral Agreement were $67,508.
 
    Pursuant to a Research  and Development Agreement, effective  as of July  1,
1995, (the R&D Agreement) between the Company and AccuMed the Company granted to
Sensititre  Limited,  a  wholly-owned  subsidiary  of  AccuMed,  a non-exclusive
license to use  the Company's intellectual  property, including know-how,  trade
secrets  and  technology  relating to  alamarBlue-TM-  for the  sole  purpose of
conducting research and development activities using such intellectual property.
Under the R&D Agreement,  the Company paid the  actual hourly wage per  employee
hour  spent  on such  research and  development and  reimburses AccuMed  for its
expenses relating thereto. The  R&D Agreement terminated  on December 29,  1995.
Amounts  paid to AccuMed for  the year-ended September 30,  1995, under this R&D
Agreement were $20,000.
 
    At September 30, 1995,  the Company had recorded  an accounts receivable  of
$53,499  from  AccuMed which  resulted from  the sale  of inventory  to AccuMed.
Additionally, the Company had recorded
 
                                      F-19
<PAGE>
                  ACCUMED INTERNATIONAL, INC. AND SUBSIDIARIES
         NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS -- (CONTINUED)
 
16. MERGER AND RELATED TRANSACTIONS (CONTINUED)
approximately $123,000  of accounts  payable to  AccuMed for  services  received
pursuant   to  the   Manufacturing,  Distributor   and  Oral   Agreements.  Upon
consummation of the merger on December 29, 1995 such amounts were eliminated  in
consolidation.
 
    The  Company recorded  a deferred asset  at September 30,  1995, of $299,650
relating to  direct costs  paid  to unrelated  entities for  services  performed
related  to the merger.  These deferred costs have  been included in determining
the cost of AccuMed.
 
    In February 1995, the Company and  AccuMed entered into an agreement with  a
consulting  firm  (Consulting  Firm) to  pay  the Consulting  Firm  an aggregate
finders fee  for assistance  with the  merger, of  which $50,000  was paid  with
proceeds  from  the  Company's  private  offering in  August  1995  and  is non-
refundable. The  remaining  obligation was  satisfied  through the  issuance  of
444,444  shares  of common  stock on  December 29,  1995 and  the issuance  of a
five-year warrant to purchase 750,000 shares of common stock at $1.25 per share.
The total finders  fee of  $790,000 has  been included  as direct  costs of  the
acquisition.
 
    The  Company entered into an agreement with Bridgemere Capital (Bridgemere),
which has been acting as special advisor  to the Company, pursuant to which  the
Company  has  paid to  Bridgemere a  fee of  $50,000  and has  agreed to  pay an
additional $55,000 in cash and issued 56,000 shares of common stock on  December
29, 1995. The total finders fee of $168,000 has been included as direct costs of
the acquisition.
 
17. RELATED-PARTY TRANSACTIONS
    All  nonemployee directors  have received an  option to  purchase 750 common
shares and option to purchase 250 additional shares annually. In 1993 and  1994,
all  nonemployee directors received an option to purchase 1,000 shares and 5,000
shares of the  Company's common  stock, respectively. In  1995, all  nonemployee
directors  received options to  purchase 5,000 to 9,215  shares of the Company's
common stock,  contingent upon  their length  of service.  These directors  will
receive  options for 5,000 additional shares  annually. All such awards are made
pursuant to the 1992 Plan.
 
    On November 21, 1994, the Company  issued to certain officers and  employees
of  the  Company  options to  purchase  an  aggregate of  16,020  shares  of the
Company's common stock at an exercise price of $0.75 per share. Also, on  August
31,  1995, the  Company issued  to certain employees  of the  Company options to
purchase an  aggregate of  30,000 shares  of the  Company's common  stock at  an
exercise price of $1 per share.
 
    In  December 1994, the Company entered into a Consulting Services Agreement,
effective January 1,  1995, with a  Placement Agent, also  a stockholder of  the
Company,  pursuant  to  which  the Placement  Agent  agreed  to  provide certain
financial consulting services to the Company for  a period of 12 months with  an
option to renew the agreement for an additional 12 months at the consent of both
the  Placement Agent and  the Company. In exchange  for the consulting services,
the Company  will  pay the  Placement  Agent an  aggregate  sum of  $58,500.  At
September 30, 1995, the Company had paid the Placement Agent $42,500.
 
    In  September 1995,  the Company paid  $12,500 to a  director for consulting
services performed related to the private financings in May and August 1995  and
the  proposed merger between the Company  and AccuMed. Additionally, in November
1995, the Company issued 20,000 shares of the Company's common stock at a  price
of  $.625 per share to  the same director for  the consulting services described
above.
 
                                      F-20
<PAGE>
                  ACCUMED INTERNATIONAL, INC. AND SUBSIDIARIES
         NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS -- (CONTINUED)
 
17. RELATED-PARTY TRANSACTIONS (CONTINUED)
    During the  year ended  September  30, 1994,  the  Company entered  into  an
agreement with an Italian company, which is also a stockholder, for distribution
of  the Company's products in Europe.  Sales to this stockholder constituted 51%
and 18% of the Company's total sales for the years ended September 30, 1994  and
1995, respectively. At September 30, 1994 and 1995, accounts receivable from the
stockholder  amounted to  approximately $313,000 and  $65,000, respectively. The
distributor is no longer a stockholder of the Company.
 
18. SUBSEQUENT EVENTS (UNAUDITED)
    In January 1996, the Company received  $250,000 cash in exchange for a  note
payable  bearing interest  at 11%  due in April  1996, and  warrants to purchase
100,000 shares of common stock at  $1.25 per share. The total proceeds  received
of  $250,000 were allocated to the warrants  based on their estimated fair value
of $352,000. The difference of $102,000  has been reflected as other expense  in
the  Consolidated Statement of Operations for the three month period ended March
31, 1996. The original issue discount of $250,000 relating to the notes  payable
will  be amortized over the term of the note with $166,000 reflected as interest
expense in the Consolidated Statement of  Operations for the three month  period
ended March 31, 1996.
 
    At December 31, 1995, the Company had deferred revenue of $1,454,550 pending
resolution  of the Microscan  lawsuit and the Difco  lawsuit. Upon settlement of
these lawsuits in February 1996,  the Company received an additional  $2,000,000
from  Becton, $1,000,000 each in  February and March 1996,  per the terms of the
worldwide  license  agreement  executed  on  October  10,  1995.  Total   income
recognized for the three month period ended March 31, 1996 per the terms of this
agreement  was  $3,454,450  and  has  been  reflected  as  other  income  in the
Consolidated Statement of Operations.
 
    On December  29, 1995,  the Company  acquired  all of  the common  stock  of
AccuMed  and its  wholly-owned subsidiary. Pursuant  to the terms  of the merger
agreement, 1,881,910 shares of common stock and 126,945 warrants were issued  to
AccuMed  stockholders  which  were  contingent  and  subject  to  forfeiture  if
specified performance  goals  were  not  achieved  by  the  merged  entity.  The
contingency  associated with 940,955 shares of  common stock and 63,472 warrants
was resolved (performance goal achieved)  in March 1996 resulting in  contingent
consideration  of  $5,430,326. Such  amount has  been allocated  to identifiable
intangibles of  acquired  proprietary  technology  ($1,930,599)  and  in-process
research  and development ($3,499,727). The acquired proprietary technology will
be amortized over the expected period to be benefited, which is estimated to  be
ten  years, with the  in-process research and  development charged to operations
during the three months ended March 31, 1996.
 
    In March  1996,  the  Company  granted to  an  individual  in  exchange  for
consulting services rendered warrants to purchase 100,000 shares of common stock
at  a price of $2.125 per share. These warrants expire in January 2001. The fair
market value of  these warrants  of $230,000 has  been recorded  as issuance  of
common  stock  warrants with  an offsetting  charge reflected  as administration
expense in the Consolidated Statement of  Operations for the three month  period
ended March 31, 1996.
 
    In  March 1996, the Company granted to  certain investors in a related party
warrants to purchase 675,000 shares of common stock at a price of $3.42 to $3.87
per share. These warrants expire in March  1999. The fair market value of  these
warrants of $852,390 has been recorded as issuance of common stock warrants with
an offsetting charge reflected as other expense in the Consolidated Statement of
Operations for the three month period ended March 31, 1996.
 
    For the three month period ended March 31, 1996, the Company granted options
to  purchase 240,000 shares at  prices of $1.75 to  $3.75 per share, options for
12,895 shares were exercised at prices of  $0.63 to $1.39 per share and  options
to purchase 2,032 shares were canceled.
 
                                      F-21
<PAGE>
                  ACCUMED INTERNATIONAL, INC. AND SUBSIDIARIES
         NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS -- (CONTINUED)
 
18. SUBSEQUENT EVENTS (UNAUDITED) (CONTINUED)
    In  April  1996,  the  Company  agreed  to  acquire  the  assets  of Accuron
Corporation, an Ohio corporation ("Accuron"), in consideration for the  issuance
of 100,000 shares of Common Stock, a value of approximately $600,000. The assets
to be acquired consist largely of U.S. and foreign patents in the areas of image
analysis  and automated cytology. The Company will not assume any liabilities of
Accuron.
 
    In June 1996, 166,586 shares of common stock were issued to a related  party
pursuant  to an agreement requiring conversion  of the outstanding principal and
the accrued and unpaid interest totalling  $75,000 into 68,500 shares of  common
stock of AccuMed prior to the merger with the Company.
 
    In  July 1996, the Company signed a letter of intent to acquire a two-thirds
interest in Oncometrics Imaging Corp. ("Oncometrics") for a total purchase price
of approximately $4.0 million  which includes approximately  $2.0 million to  be
used solely as working capital for Oncometrics.
 
    In July 1996, the Company signed a letter of intent to acquire the remaining
90%  interest in Radco Ventures, Inc.  ("Radco"), for approximately $1.4 million
in cash.
 
    During July  1996, the  Company publicly  registered the  255,000 shares  of
common stock issued pursuant to a private placement.
 
                                      F-22
<PAGE>
                                AUDITORS' REPORT
 
To the Board of Directors
Oncometrics Imaging Corp.
 
    We   have  audited  the  balance  sheets  of  the  AIC  division  of  Xillix
Technologies Corp. as at August 31,  1995 and December 31, 1995 and  Oncometrics
Imaging  Corp. at May 31, 1996 and  the statements of operations and deficit and
changes in  financial  position for  the  periods then  ended.  These  financial
statements   are   the   responsibility  of   the   Company's   management.  Our
responsibility is to express an opinion  on these financial statements based  on
our audit.
 
    We  conducted our audit in accordance generally accepted auditing standards.
Those standards require that we plan  and perform an audit to obtain  reasonable
assurance whether the financial statements are free of material misstatement. An
audit  includes examining, on a test  basis, evidence supporting the amounts and
disclosures in the financial  statements. An audit  also includes assessing  the
accounting principles used and significant estimates made by management, as well
as evaluating the overall financial statement presentation.
 
    In  our opinion, these financial statements  present fairly, in all material
respects, the financial position  of the Division and  the Company as at  August
31,  1995, December 31, 1995, and May 31, 1996 and the results of its operations
and the  changes  in  its financial  position  for  the periods  then  ended  in
accordance  with generally  accepted accounting  principles. As  required by the
Company Act (British Columbia), we report that, in our opinion, these principles
have been applied on a basis consistent with that of the preceding year.
 
    Generally  accepted  accounting  principles   in  Canada  vary  in   certain
significant respects from generally accepted accounting principles in the United
States.  As indicated in note 12 there  are no material differences which affect
the results of operations in each of the periods and shareholders' deficiency as
of August 31, 1995, December 31, 1995 and May 31, 1996.
 
/s/ KPMG
Chartered Accountants
Vancouver, Canada
July 18, 1996
 
                                      F-23
<PAGE>
                           ONCOMETRICS IMAGING CORP.
                                 BALANCE SHEETS
 
<TABLE>
<CAPTION>
                                                                            AUGUST 31,   DECEMBER 31,    MAY 31,
                                                                               1995          1995          1996
                                                                            -----------  -------------  ----------
<S>                                                                         <C>          <C>            <C>
ASSETS
 
Current assets:
  Cash....................................................................   $      --    $        --   $   18,006
  Accounts receivable.....................................................      37,818        222,576       35,960
  Inventories (note 3)                                                         147,592         80,249      138,050
  Other...................................................................          --             --        5,438
                                                                            -----------  -------------  ----------
                                                                               185,410        302,825      197,454
                                                                            -----------  -------------  ----------
Capital assets, net (note 4)..............................................     244,916        238,197      236,847
                                                                            -----------  -------------  ----------
                                                                             $ 430,326    $   541,022   $  434,301
                                                                            -----------  -------------  ----------
                                                                            -----------  -------------  ----------
LIABILITIES AND EQUITY (DEFICIENCY)
 
Current liabilities:
  Accounts payable and accrued liabilities (note 5).......................   $  45,600    $    22,700   $  105,962
  Current portion of long-term debt (note 6)..............................                     10,000       10,000
                                                                            -----------  -------------  ----------
                                                                                45,600         32,700      115,962
                                                                            -----------  -------------  ----------
Long-term debt (note 6)...................................................     318,338        308,338      308,338
                                                                            -----------  -------------  ----------
Equity (deficiency):
  Share capital (note 7)..................................................          --             --      199,984
  Xillix divisional equity, net of operating loss (note 8)................      66,388        199,984           --
  Xillix capital contributions (note 9)...................................          --             --      302,374
                                                                            -----------  -------------  ----------
                                                                                66,388        199,984      502,358
  Deficit.................................................................          --             --     (492,357)
                                                                            -----------  -------------  ----------
                                                                                66,388        199,984       10,001
                                                                            -----------  -------------  ----------
                                                                             $ 430,326    $   541,022   $  434,301
                                                                            -----------  -------------  ----------
                                                                            -----------  -------------  ----------
</TABLE>
 
                See accompanying notes to financial statements.
 
                                      F-24
<PAGE>
                           ONCOMETRICS IMAGING CORP.
                      STATEMENTS OF OPERATIONS AND DEFICIT
 
<TABLE>
<CAPTION>
                                                                 TWELVE MONTHS                       FIVE MONTHS
                                                                     ENDED       FOUR MONTHS ENDED      ENDED
                                                                AUGUST 31, 1995  DECEMBER 31, 1995   MAY 31, 1996
                                                                ---------------  ------------------  ------------
<S>                                                             <C>              <C>                 <C>
Revenues
  Product sales...............................................   $     220,862      $    198,845      $    7,012
  Interest income.............................................              --                --           1,554
                                                                ---------------         --------     ------------
                                                                       220,862           198,845           8,566
                                                                ---------------         --------     ------------
Cost and expenses:
  Cost of sales...............................................         183,927           119,325           4,297
  Marketing, sales and support................................              --                --          82,062
  Research and development....................................       1,290,188           300,853         283,522
  General and administrative..................................              --                --         100,435
  General and administrative allocation from parent company...         235,826            60,320              --
  Depreciation and amortization...............................          71,840            23,680          30,607
                                                                ---------------         --------     ------------
                                                                     1,781,781           504,178         500,923
                                                                ---------------         --------     ------------
Loss for the period...........................................   $   1,560,919      $    305,333         492,357
                                                                ---------------         --------
                                                                ---------------         --------
Deficit, beginning of period..................................                                                --
                                                                                                     ------------
Deficit, end of period........................................                                        $  492,357
                                                                                                     ------------
                                                                                                     ------------
</TABLE>
 
                See accompanying notes to financial statements.
 
                                      F-25
<PAGE>
                           ONCOMETRICS IMAGING CORP.
                  STATEMENTS OF CHANGES IN FINANCIAL POSITION
 
<TABLE>
<CAPTION>
                                                                 TWELVE MONTHS                       FIVE MONTHS
                                                                     ENDED       FOUR MONTHS ENDED      ENDED
                                                                AUGUST 31, 1995  DECEMBER 31, 1995   MAY 31, 1996
                                                                ---------------  ------------------  ------------
<S>                                                             <C>              <C>                 <C>
Cash provided by (used in):
Operations:
  Loss for the period.........................................   $  (1,560,919)     $   (305,333)    $   (492,357)
  Depreciation and amortization an item not involving cash....          71,840            23,680           30,607
                                                                ---------------       ----------     ------------
                                                                    (1,489,079)         (281,653)        (461,750)
                                                                ---------------       ----------     ------------
  Changes in non-cash operating working capital:
    Accounts receivable.......................................         (37,818)         (184,758)         186,616
    Inventories...............................................        (147,592)           67,343          (57,801)
    Other current assets......................................              --                --           (5,438)
    Accounts payable and accrued liabilities..................          45,600           (22,900)          83,262
                                                                ---------------       ----------     ------------
                                                                    (1,628,889)         (421,968)        (255,111)
                                                                ---------------       ----------     ------------
Financing:
  Increase in equity..........................................       1,627,307           438,929          302,374
  Increase in long-term debt..................................         318,338                --               --
                                                                ---------------       ----------     ------------
                                                                     1,945,645           438,929          302,374
                                                                ---------------       ----------     ------------
Investments:
  Purchase of capital assets, net.............................        (316,756)          (16,961)         (29,257)
                                                                ---------------       ----------     ------------
Increase in cash..............................................              --                --           18,006
Cash, beginning of period.....................................              --                --               --
                                                                ---------------       ----------     ------------
Cash, end of period...........................................   $          --      $         --     $     18,006
                                                                ---------------       ----------     ------------
                                                                ---------------       ----------     ------------
</TABLE>
 
                See accompanying notes to financial statements.
 
                                      F-26
<PAGE>
                           ONCOMETRICS IMAGING CORP.
                         NOTES TO FINANCIAL STATEMENTS
 
1.  FORMATION AND OPERATIONS:
    A Division of  Xillix Technologies  Inc. ("Xillix") has  specialized in  the
research   and  development   of  Automated  Image   Cytometry  equipment  ("AIC
Division").
 
    In contemplation  of  raising  additional  capital  for  the  AIC  Division,
Oncometrics   Imaging  Corp.  (the  "Company")  was  formed  as  a  wholly-owned
subsidiary of Xillix in October 1995.  Effective January 1, 1996 the  operations
of  the AIC Division were transferred to the  Company. The net assets of the AIC
Division were transferred on January 20, 1996 in consideration of shares of  the
Company.  The value assigned to the shares  was equal to the historical value of
net assets transferred.
 
    The accompanying financial  statements include the  accounts of the  Company
for  the period  January 1, 1996  to May  31, 1996 and  the accounts  of the AIC
Division for the year ended August 31,  1995 and the four months ended  December
31, 1995.
 
    The  financial statements for the year ended August 31, 1995 and four months
ended December  31,  1995  include  an allocation  of  the  overhead  of  Xillix
applicable to the AIC Division, based on proportionate wages.
 
2.  SIGNIFICANT ACCOUNTING POLICIES:
    These  financial statements have  been prepared by  management in accordance
with generally  accepted accounting  principles in  Canada (Canadian  GAAP)  and
presented  in Canadian dollars. These financial  statements also conform, in all
material respects, with those accounting principles that are generally  accepted
in the United States (US GAAP), except for these matters referred to in note 12.
 
    (a) Basis of presentation:
 
    These  financial  statements  are prepared  for  inclusion in  a  SEC filing
statement for purposes of funding the  acquisition of a 66 2/3% equity  interest
of Oncometrics Imaging Corp. pursuant to a letter of intent dated July 3, 1996.
 
    The  financial statements have been prepared  on the basis which assumes the
realization of assets  and settlement  of liabilities  in the  normal course  of
business. The ability of the Company to continue its planned course of action is
dependent  upon continued  financial support  from its  parent company  and upon
additional financing and obtaining future profitable operations.
 
    (b) Inventories:
 
    Inventories are included  at the lower  of average cost  and net  realizable
value.
 
    (c) Capital assets:
 
    Capital  assets  are  stated at  cost.  Depreciation is  provided  using the
following methods and annual rates:
 
<TABLE>
<CAPTION>
                        ASSET                                       BASIC                 RATE
- -----------------------------------------------------  -------------------------------  ---------
<S>                                                    <C>                              <C>
Computer and laboratory equipment                      declining-balance                      30%
Furniture and office equipment                         declining-balance                      20%
Demonstration equipment                                straight-line over 3 years
Leasehold improvements                                 straight-line over 5 years
Intellectual property and patents                      straight-line over 17 years
</TABLE>
 
    (d) Research and development costs:
 
    Research and development (R&D) costs are expensed as incurred. Research  and
related  government assistance is accounted for  using the cost reduction method
and is credited against R&D expenditures.
 
                                      F-27
<PAGE>
                           ONCOMETRICS IMAGING CORP.
                   NOTES TO FINANCIAL STATEMENTS (CONTINUED)
 
2.  SIGNIFICANT ACCOUNTING POLICIES: (CONTINUED)
    (e) Estimates:
 
    Preparation  of  financial  statements  in  conformity  with  GAAP  requires
management to make estimates and assumptions that effect the reported amounts of
assets  and liabilities and  disclosure of contingent  assets and liabilities at
the date of  the financial statements  and the reported  amounts of revenue  and
expenses during the period. Actual results could differ from these estimates.
 
3.  INVENTORIES:
    Inventories  comprises finished goods of $  nil (August 31, 1995 -- $70,000;
December 31,  1995 --  $ nil)  and materials  of $138,050  (August 31,  1995  --
$77,592; December 31, 1995 -- $80,249).
 
4.  CAPITAL ASSETS:
 
<TABLE>
<CAPTION>
                                                                            AUGUST 31,   DECEMBER 31,    MAY 31,
                                                                               1995          1995          1996
                                                                            -----------  -------------  ----------
<S>                                                                         <C>          <C>            <C>
Computer and laboratory equipment.........................................   $ 194,130    $   207,891   $  221,811
Furniture and office equipment............................................       7,923          7,923       11,339
Demonstration equipment...................................................     107,562        108,623      108,623
Leasehold improvements....................................................          --             --        3,883
Intellectual property and patents.........................................     121,901        124,040      132,078
                                                                            -----------  -------------  ----------
                                                                               431,516        448,477      477,734
Less accumulated depreciation and amortization............................     186,600        210,280      240,887
                                                                            -----------  -------------  ----------
                                                                             $ 244,916    $   238,197   $  236,847
                                                                            -----------  -------------  ----------
                                                                            -----------  -------------  ----------
</TABLE>
 
5.  ACCOUNTS PAYABLE AND ACCRUED LIABILITIES:
    Accrued liabilities include a warranty reserve of $9,120 (August 31, 1995 --
$20,000;  December 31, 1995 -- $10,000) and accrued salary and vacation pay of $
nil (August 31, 1995 -- $25,600; -- December 31, 1995 -- $ nil).
 
6.  LONG-TERM DEBT:
    Long-term debt consists of repayable contribution from the Western  Economic
Diversification  Program  which  was  assumed  from  Xillix  Technologies  Corp.
("Xillix") and is still in the name of Xillix as follows:
 
<TABLE>
<CAPTION>
                                                                            AUGUST 31,   DECEMBER 31,    MAY 31,
                                                                               1995          1995          1996
                                                                            -----------  -------------  ----------
<S>                                                                         <C>          <C>            <C>
Balance assumed...........................................................   $ 318,338    $   318,338   $  318,338
Less current portion......................................................          --         10,000       10,000
                                                                            -----------  -------------  ----------
                                                                             $ 318,338    $   308,338   $  308,338
                                                                            -----------  -------------  ----------
                                                                            -----------  -------------  ----------
</TABLE>
 
    The Western Diversification  construction does  not bear  interest. This  is
repayable  in semi-annual contributions commencing  January 31, 1994. Repayments
are based on future sales of the ACCESS device.
 
    The estimated  aggregate  maximum repayments  for  each of  the  five  years
subsequent to December 31, 1995 are as follows:
 
<TABLE>
<S>                                                                         <C>
1996......................................................................  $  10,000
1997......................................................................    100,000
1998......................................................................    100,000
1999......................................................................    100,000
2000......................................................................      8,338
</TABLE>
 
                                      F-28
<PAGE>
                           ONCOMETRICS IMAGING CORP.
                   NOTES TO FINANCIAL STATEMENTS (CONTINUED)
 
7.  SHARE CAPITAL:
 
    (a) Authorized:
 
    The  authorized share capital  of the Company  consists of 50,000,000 common
shares without par value.
 
    (b) Issued:
 
<TABLE>
<CAPTION>
                                                                            AUGUST 31,    DECEMBER 31,     MAY 31,
                                                                               1995           1995           1996
                                                                            -----------  ---------------  ----------
<S>                                                                         <C>          <C>              <C>
1,775,000 (1 -- December 31, 1995) common shares..........................   $     N/A      $      --     $  199,984
                                                                            -----------           ---     ----------
                                                                            -----------           ---     ----------
</TABLE>
 
8.  DIVISIONAL EQUITY:
    The divisional equity at  December 31, 1995 and  August 31, 1995  represents
the  sum of  cash contributions, plus  the net  assets of the  division less the
divisional loss.
 
9.  XILLIX CAPITAL CONTRIBUTION:
    This represents loans by  Xillix to the Company  which will be converted  to
shares.
 
10. INCOME TAXES:
    As  at  May 31,  1996  the Company  has  non-capital losses  for  income tax
purposes of approximately $256,000  available to reduce  taxes of future  years,
which  expire in  2000. The  Company also  has Scientific  Research Experimental
Development Expenditures of approximately $214,000 at May 31, 1996.
 
    No recognition has been given in these financial statements to the potential
future tax benefits which  may arise from claiming  these losses and  Scientific
Research and Experimental Development Expenditures.
 
11. EXPORT SALES:
    The Company's division had export sales in the following geographic regions:
 
<TABLE>
<CAPTION>
                                                                   FOUR MONTHS
                                                  TWELVE MONTHS       ENDED       FIVE MONTHS
                                                   ENDED AUGUST   DECEMBER 31,   ENDED MAY 31,
                                                     31, 1995         1995           1996
                                                  --------------  -------------  -------------
<S>                                               <C>             <C>            <C>
United States...................................    $  148,453     $     8,190     $   4,326
Europe..........................................         2,428         129,675         2,186
                                                  --------------  -------------       ------
                                                    $  150,881     $   137,865     $   6,512
                                                  --------------  -------------       ------
                                                  --------------  -------------       ------
</TABLE>
 
12. DIFFERENCES BETWEEN CANADIAN AND UNITED STATES GENERALLY ACCEPTED ACCOUNTING
PRINCIPLES:
    In  February 1992, the Financial Accounting Standards Board issued Statement
No. 109,  "ACCOUNTING  FOR  INCOME  TAXES". Statement  109  changed  the  method
companies used to account for income taxes from the deferral method to the asset
and  liability method.  This statement is  effective for  fiscal years beginning
after December  15,  1992. The  Company  has  determined that  the  adoption  of
Statement  109 does not result  in a material effect  on the net deferred income
tax position of the Company as any deferred tax assets initially recognized  are
fully offset by a valuation allowance as at December 31, 1995.
 
                                      F-29
<PAGE>
               PRO FORMA CONDENSED COMBINING FINANCIAL STATEMENTS
 
    The accompanying pro forma condensed combining financial statements reflects
the  probable  acquisition  of  a  66%  interest  in  Oncometrics  Imaging Corp.
(Oncometrics) by AccuMed International,  Inc. (AccuMed International)  (formerly
Alamar Biosciences, Inc), the proposed acquisition of the remaining 90% interest
in Radco Ventures, Inc. (Radco), the merger of AccuMed International and AccuMed
Inc. (AccuMed), and the purchase of certain assets and the assumption of certain
liabilities from Sensititre US and Sensititre Ltd. by AccuMed.
 
    The pro forma condensed combining balance sheet as of March 31, 1996 assumes
that  the  proposed  acquisition of  the  66%  interest in  Oncometrics  and the
proposed acquisition of the  remaining 90% interest in  Radco occurred on  March
31,  1996. The  pro forma condensed  combining statements of  operations for the
three months ended March 31, 1996, for the three months ended December 31,  1995
and  for the year ended September 30,  1995 assume that the probable acquisition
of the 66% interest in Oncometrics occurred on October 1, 1994. In addition, the
pro forma  condensed combining  statements of  operations for  the three  months
ended  December 31, 1995 and  for the year ended  September 30, 1995 assume that
the merger of AccuMed International with Accumed and the purchase of  Sensititre
US  and Sensititre  Ltd. occurred  on October  1, 1994.  The condensed combining
statements of operations do  not reflect results of  operations for Radco  since
its' incorporation on March 6, 1996. Such results are not deemed significant.
 
    The  transactions have been accounted for using purchase accounting. The pro
forma adjustments are based on preliminary assumptions of the allocation of  the
purchase  price and are subject to  substantial revision once evaluations of the
fair value  of  the  assets  and  liabilities  are  completed.  Actual  purchase
accounting  adjustments  may differ  from  the pro  forma  adjustments presented
herein.
 
    The respective  Oncometrics  financial  results have  been  translated  from
Canadian  dollars to U.S. dollars  using an exchange rate  of .7451 for the year
ended September 30, 1995,  .7391 for the three  months ended December 31,  1995,
 .7343 for the three months ended March 31, 1996, and .7357 as of March 31, 1996.
 
    The  pro forma condensed combining  financial information is not necessarily
indicative of the results that actually would have occurred if the  acquisitions
had  been completed on  the assumed dates  nor are the  statements indicative of
future combined financial position or earnings.
 
                                      F-30
<PAGE>
                  ACCUMED INTERNATIONAL, INC. AND SUBSIDIARIES
                  PRO FORMA CONDENSED COMBINING BALANCE SHEET
                                 MARCH 31, 1996
                                  (UNAUDITED)
 
<TABLE>
<CAPTION>
                                         ACCUMED      ONCOMETRICS      RADCO
                                      INTERNATIONAL,    IMAGING      VENTURES,
                                           INC.        CORP. (A)      INC. (B)      ADJUSTMENTS       PRO FORMA
                                      --------------  ------------  ------------  ----------------  --------------
<S>                                   <C>             <C>           <C>           <C>               <C>
ASSETS:
Cash and cash equivalents...........  $    1,382,128   $   13,246   $    800,000  $  2,000,000(1)   $    4,195,374
Restricted cash.....................         310,000           --             --            --             310,000
Accounts receivable.................         869,357       26,455             --            --             895,812
Prepaid expenses and deposits.......         113,453           --             --            --             113,453
Production inventory................       1,348,678      101,559             --            --           1,450,237
                                      --------------  ------------  ------------  ----------------  --------------
  Total current assets..............       4,023,616      141,260        800,000     2,000,000           6,964,876
                                      --------------  ------------  ------------  ----------------  --------------
Fixed assets, net...................         677,843      174,241             --                           852,084
Intangible assets...................       4,493,055           --             --     2,670,000(1)        7,793,055
                                                                                       630,000(2)
Other assets........................         121,577        4,001             --                           125,578
                                      --------------  ------------  ------------  ----------------  --------------
                                      $    9,316,091   $  319,502   $    800,000  $  5,300,000      $   15,735,593
                                      --------------  ------------  ------------  ----------------  --------------
                                      --------------  ------------  ------------  ----------------  --------------
LIABILITIES AND STOCKHOLDERS' EQUITY
Current portion of long-term debt...  $           --   $    7,357   $         --  $         --      $        7,357
Capital lease obligations due within
 one year...........................          82,093           --             --            --              82,093
Accounts payable....................       2,481,492       77,952         50,000                         2,609,444
Due to Xillix Technologies Corp.....              --           --             --     4,000,000(1)        4,000,000
Due to Radco Ventures...............              --           --             --     1,380,000(2)        1,380,000
Other current liabilities...........         687,218           --             --            --             687,218
Notes payable.......................         956,960           --             --            --             956,960
                                      --------------  ------------  ------------  ----------------  --------------
  Total current liabilities.........       4,207,763       85,309         50,000     5,380,000           9,723,072
                                      --------------  ------------  ------------  ----------------  --------------
Long-term portion of capital lease
 obligations........................          67,766           --             --            --              67,766
Long-term debt......................              --      226,835             --            --             226,835
Deferred rent.......................          11,836           --             --            --              11,836
Minority interest...................              --           --             --       677,358             677,358
Stockholders' equity:
  Common stock......................         166,050           --             --            --             166,050
  Additional paid-in capital........      30,273,297           --        750,000      (750,000)(2)      30,273,297
  Accumulated deficit...............     (25,410,621)       7,358             --        (7,358)(1)     (25,410,621)
                                      --------------  ------------  ------------  ----------------  --------------
    Total stockholders' equity......       5,028,726        7,358        750,000      (677,358)          5,028,726
                                      --------------  ------------  ------------  ----------------  --------------
                                      $    9,316,091   $  319,502   $    800,000  $  5,300,000      $   15,735,593
                                      --------------  ------------  ------------  ----------------  --------------
                                      --------------  ------------  ------------  ----------------  --------------
</TABLE>
 
- ------------------------
(A) Represents net assets of Oncometrics as of May 31, 1996.
 
(B) Represents net assets of Radco as of June 30, 1996.
 
               See accompanying notes to the pro forma condensed
                        combining financial statements.
 
                                      F-31
<PAGE>
                  ACCUMED INTERNATIONAL, INC. AND SUBSIDIARIES
             PRO FORMA CONDENSED COMBINING STATEMENT OF OPERATIONS
                   FOR THE THREE MONTHS ENDED MARCH 31, 1996
                                  (UNAUDITED)
 
<TABLE>
<CAPTION>
                                                            ACCUMED     ONCOMETRICS
                                                         INTERNATIONAL,   IMAGING
                                                             INC.        CORP. (A)    ADJUSTMENTS     PRO FORMA
                                                         -------------  ------------  ------------  -------------
<S>                                                      <C>            <C>           <C>           <C>
Sales..................................................   $ 1,187,701    $    2,153   $       --    $   1,189,854
Cost of sales..........................................      (595,210)       (1,678)          --         (596,888)
                                                         -------------  ------------  ------------  -------------
Gross profit...........................................       592,491           475           --          592,966
                                                         -------------  ------------  ------------  -------------
Operating expenses:
  General and administrative...........................       914,057        42,433       27,000(4)       983,490
  Research and development.............................     4,074,786       119,971           --        4,194,757
  Sales and marketing..................................       393,177        31,847           --          425,024
                                                         -------------  ------------  ------------  -------------
    Total operating expenses...........................     5,382,020       194,250       27,000        5,603,270
                                                         -------------  ------------  ------------  -------------
Operating loss.........................................    (4,789,529)     (193,775)     (27,000)      (5,010,304)
Other income (expense):
  Interest income......................................         5,837             1           --            5,838
  Interest expense.....................................      (326,831)           --           --         (326,831)
  Other income.........................................     2,462,252            --           --        2,462,252
                                                         -------------  ------------  ------------  -------------
Loss before income taxes and minority interest.........    (2,648,271)     (193,774)     (27,000)      (2,869,045)
Income tax expense.....................................           850                                         850
                                                         -------------  ------------  ------------  -------------
Net loss before minority interest......................    (2,649,121)     (193,774)     (27,000)      (2,869,895)
Minority interest......................................            --            --       75,000(5)        75,000
                                                         -------------  ------------  ------------  -------------
    Net earnings (loss)................................   $(2,649,121)   $ (193,774)  $   48,000    $  (2,794,895)
                                                         -------------  ------------  ------------  -------------
                                                         -------------  ------------  ------------  -------------
Net loss per share.....................................                                             $       (0.18)
                                                                                                    -------------
                                                                                                    -------------
Weighted average common shares outstanding.............                                                15,797,315
                                                                                                    -------------
                                                                                                    -------------
</TABLE>
 
- ------------------------
(A) Includes the three months ended March 31, 1996 for Oncometrics.
 
               See accompanying notes to the pro forma condensed
                        combining financial statements.
 
                                      F-32
<PAGE>
                  ACCUMED INTERNATIONAL, INC. AND SUBSIDIARIES
             PRO FORMA CONDENSED COMBINING STATEMENT OF OPERATIONS
                  FOR THE THREE MONTHS ENDED DECEMBER 31, 1995
                                  (UNAUDITED)
 
<TABLE>
<CAPTION>
                                              ACCUMED                    ONCOMETRICS
                                           INTERNATIONAL,                  IMAGING
                                               INC.       ACCUMED INC.    CORP. (A)     ADJUSTMENTS    PRO FORMA
                                           -------------  -------------  ------------  -------------  ------------
<S>                                        <C>            <C>            <C>           <C>            <C>
Sales....................................   $   100,130    $ 1,009,376    $  146,959   $  (73,005)(6) $  1,183,460
Cost of sales............................      (338,730 )     (830,497 )     (88,189 )      71,892(7)   (1,185,524)
                                           -------------  -------------  ------------  -------------  ------------
Gross profit (loss)......................      (238,600 )      178,879        58,770        (1,113  )       (2,064)
                                           -------------  -------------  ------------  -------------  ------------
Operating expenses:
  General and administration.............     1,418,797        758,066        49,759        27,000(4)    2,253,622
  Research and development...............     3,997,600        338,178       172,259            --       4,508,037
  Sales and marketing....................         7,197        289,360            --            --         296,557
                                           -------------  -------------  ------------  -------------  ------------
Total operating expenses.................     5,423,594      1,385,604       222,018        27,000       7,058,216
                                           -------------  -------------  ------------  -------------  ------------
Operating loss...........................    (5,662,194 )   (1,206,725 )    (163,248 )     (28,113  )   (7,060,280)
Other income (expense):
  Interest income........................         4,748             --            --            --           4,748
  Interest (expense).....................       (10,862 )       (1,948 )          --            --         (12,810)
  Other..................................       (72,929 )           --            --            --         (72,929)
                                           -------------  -------------  ------------  -------------  ------------
Loss before income taxes and minority
 interest................................    (5,741,237 )   (1,208,673 )    (163,248 )     (28,113  )   (7,141,271)
Provision for income taxes...............           800             --            --            --             800
                                           -------------  -------------  ------------  -------------  ------------
Net loss before minority interest........    (5,742,037 )   (1,208,673 )    (163,248 )     (28,113  )   (7,142,071)
Minority interest........................            --             --            --        65,000(5)       65,000
                                           -------------  -------------  ------------  -------------  ------------
Net earnings (loss)......................  $ (5,742,037 ) $ (1,208,673 ) $  (163,248 ) $    36,887    $ (7,077,071)
                                           -------------  -------------  ------------  -------------  ------------
                                           -------------  -------------  ------------  -------------  ------------
Net loss per share.......................                                                             $      (0.60)
                                                                                                      ------------
                                                                                                      ------------
Weighted average common shares
 outstanding.............................                                                               11,742,980
                                                                                                      ------------
                                                                                                      ------------
</TABLE>
 
- ------------------------
(A) Includes the three months ended December 31, 1995 for Oncometrics.
 
               See accompanying notes to the pro forma condensed
                        combining financial statements.
 
                                      F-33
<PAGE>
                  ACCUMED INTERNATIONAL, INC. AND SUBSIDIARIES
             PRO FORMA CONDENSED COMBINING STATEMENT OF OPERATIONS
                     FOR THE YEAR ENDED SEPTEMBER 30, 1995
                                  (UNAUDITED)
<TABLE>
<CAPTION>
                                                                                                         PRO FORMA
                                                                                               -----------------------------
                                             HISTORICAL                                                          ACCUMED,
                                            -------------                                                      AS ADJUSTED,
                                               ACCUMED                 HISTORICAL                              FOR THE YEAR
                                            INTERNATIONAL  ----------------------------------                      ENDED
                                             YEAR ENDED                  SENSITITRE SENSITITRE                 SEPTEMBER 30,
                                            SEPTEMBER 30,    ACCUMED        US         UK                          1995
                                                1995           (A)          (B)        (B)      ADJUSTMENTS         (C)
                                            -------------  ------------  ---------  ---------  --------------  -------------
<S>                                         <C>            <C>           <C>        <C>        <C>             <C>
Sales.....................................   $   514,776   $  2,609,233  $ 409,360  $ 639,561  $ (193,000)(6)   $ 3,465,154
Cost of sales.............................    (1,431,187)    (1,510,143)  (247,860)  (457,056)    109,000(7)     (2,106,059)
                                            -------------  ------------  ---------  ---------  --------------  -------------
Gross profit (loss).......................      (916,411)     1,099,090    161,500    182,505     (84,000)        1,359,095
                                            -------------  ------------  ---------  ---------  --------------  -------------
Operating expenses:
  General and administration..............     2,094,890      1,040,083    208,420     74,589     100,000(8)      1,423,092
  Research and development................       386,882        453,277         --     88,872          --           542,149
  Sales and marketing.....................       309,208      1,187,177         --         --          --         1,187,177
                                            -------------  ------------  ---------  ---------  --------------  -------------
Total operating expenses..................     2,790,980      2,680,537    208,420    163,461     100,000         3,152,418
                                            -------------  ------------  ---------  ---------  --------------  -------------
Operating income (loss)...................    (3,707,391)    (1,581,447)   (46,920)    19,044    (184,000)       (1,793,323)
Other income (expense):
  Interest income.........................         7,949         12,930         --         --          --            12,930
  Interest expense........................       (46,657)       (40,201)        --         --     (35,475)(9)       (75,676)
  Other income............................        32,566          1,308         --         --          --             1,308
  Other expense...........................       (45,777)            --         --         --          --                --
                                            -------------  ------------  ---------  ---------  --------------  -------------
Earnings (loss) before income taxes and
 minority interest........................    (3,759,310)    (1,607,410)   (46,920)    19,044    (219,475)       (1,854,761)
Provision for income taxes................           800             --         --         --          --                --
                                            -------------  ------------  ---------  ---------  --------------  -------------
Net earnings (loss) before minority
 interest.................................    (3,760,110)    (1,607,410)   (46,920)    19,044    (219,475)       (1,854,761)
                                            -------------  ------------  ---------  ---------  --------------  -------------
Minority interest.........................            --             --         --         --          --                --
                                            -------------  ------------  ---------  ---------  --------------  -------------
Net earnings (loss).......................   $ 3,760,110)  $ (1,607,410) $ (46,920) $  19,044  $ (219,425)      $(1,854,761)
                                            -------------  ------------  ---------  ---------  --------------  -------------
                                            -------------  ------------  ---------  ---------  --------------  -------------
Net loss per equivalent share.............   $     (0.59)  $      (0.92)                                        $     (1.06)
                                            -------------  ------------                                        -------------
                                            -------------  ------------                                        -------------
Weighted average shares outstanding (F)...     6,375,627      1,748,940                                           1,748,940
                                            -------------  ------------                                        -------------
                                            -------------  ------------                                        -------------
 
<CAPTION>
                                                      PRO FORMA
                                            -----------------------------
                                                               ACCUMED
                                                            INTERNATIONAL
                                                             AS ADJUSTED   HISTORICAL
                                                            FOR THE YEAR   -----------
                                                                ENDED      ONCOMETRICS
                                                            SEPTEMBER 30,    IMAGING
                                                                1995          CORP.
                                             ADJUSTMENTS         (D)           (E)       ADJUSTMENTS     PRO FORMA
                                            --------------  -------------  -----------  --------------  -----------
<S>                                         <C>             <C>            <C>          <C>             <C>
Sales.....................................  $       --       $ 3,979,930    $ 164,552   $        --     $ 4,144,482
Cost of sales.............................          --        (3,537,246)    (137,034)           --      (3,674,280)
                                            --------------  -------------  -----------  --------------  -----------
Gross profit (loss).......................          --           442,684       27,518            --         470,202
                                            --------------  -------------  -----------  --------------  -----------
Operating expenses:
  General and administration..............     284,570 (10     3,802,552      229,225       108,000(4)    4,139,777
  Research and development................          --           929,031      961,248            --       1,890,279
  Sales and marketing.....................          --         1,496,385                         --       1,496,385
                                            --------------  -------------  -----------  --------------  -----------
Total operating expenses..................     284,570         6,227,968    1,190,473       108,000       7,526,441
                                            --------------  -------------  -----------  --------------  -----------
Operating income (loss)...................    (284,570)       (5,785,284)  (1,162,955)     (108,000)     (7,056,239)
Other income (expense):
  Interest income.........................          --            20,879           --            --          20,879
  Interest expense........................          --          (122,333)          --            --        (122,333)
  Other income............................          --            33,874           --            --          33,874
  Other expense...........................          --           (45,777)          --            --         (45,777)
                                            --------------  -------------  -----------  --------------  -----------
Earnings (loss) before income taxes and
 minority interest........................    (284,570)       (5,899,441)  (1,162,955)     (108,000)     (7,169,596)
Provision for income taxes................          --               800           --                           800
                                            --------------  -------------  -----------  --------------  -----------
Net earnings (loss) before minority
 interest.................................    (284,570)       (5,899,441)  (1,162,955)     (108,000)     (7,170,396)
                                            --------------  -------------  -----------  --------------  -----------
Minority interest.........................          --                --           --       430,000(5)      430,000
                                            --------------  -------------  -----------  --------------  -----------
Net earnings (loss).......................  $ (284,570)      $(5,899,441)  ($1,162,955) $   322,000     $(6,740,396)
                                            --------------  -------------  -----------  --------------  -----------
                                            --------------  -------------  -----------  --------------  -----------
Net loss per equivalent share.............                   $     (0.60)                               $     (0.69)
                                                            -------------                               -----------
                                                            -------------                               -----------
Weighted average shares outstanding (F)...                     9,831,682                                  9,831,682
                                                            -------------                               -----------
                                                            -------------                               -----------
</TABLE>
 
- ----------------------------------
 
(A)  Includes the  twelve months  and nine months  ended September  30, 1995 for
    AccuMed, Inc. and Sensititre US/UK, respectively.
 
(B) Includes the three months ended  December 31, 1994, before the  acquisitions
    by AccuMed, Inc.
 
(C)  AccuMed Consolidated includes AccuMed,  Inc., Sensititre US, and Sensititre
    UK, Ltd. after purchase accounting adjustments
 
(D) AccuMed International Consolidated includes AccuMed International  (formerly
    Alamar   Biosciences,  Inc.),   and  AccuMed   Consolidated  after  purchase
    accounting adjustments.
 
(E) Includes the twelve months ended August 31, 1995 for Oncometrics.
 
(F) Weighted average shares outstanding are 9,831,682 which represents 6,375,627
    shares for AccuMed International before the merger plus the weighted average
    (3,456,055) of  the  4,178,104  shares  (6,178,104  shares  per  the  merger
    agreement  less 2,000,000  shares issued  but subject  to forfeiture)  to be
    issued in connection with  the AccuMed merger.  The weighted average  shares
    outstanding  for AccuMed gives effect to the shares issued by AccuMed during
    the year ended September 30,1995 using the exchange ratio of 1.98 to 1.  The
    total  shares outstanding at  September 30, 1995  are 15,107,443 (10,929,339
    shares of  AccuMed International  and 4,178,104  shares issued  to  AccuMed)
    which   does  not  include  the  2,000,000  shares  issued  but  subject  to
    forfeiture.
 
               See accompanying notes to the pro forma condensed
                          combining financial statements.
 
                                      F-34
<PAGE>
                 ACCUMED INTERNATIONAL, INC., AND SUBSIDIARIES
                     NOTES TO PRO FORMA CONDENSED COMBINING
                              FINANCIAL STATEMENTS
                                  (UNAUDITED)
 
NOTE A -- DESCRIPTION OF ACQUISITIONS
    On December 29, 1995, AccuMed International (the "Company") (formerly Alamar
Biosciences, Inc.) acquired all of the  common stock of AccuMed, which  included
the  recent acquisition of certain assets  and assumption of certain liabilities
of Sensititre US and Sensititre  Ltd. by AccuMed. Pursuant  to the terms of  the
merger  agreement, the Company  issued 3,931,401 unconditional  shares of common
stock valued at $4,422,826 and 237,840 warrants valued at $68,252. An additional
1,881,910 shares and  126,945 warrants  were issued to  AccuMed shareholders  on
December  29, 1995, however, such shares and warrants are contingent and subject
to forfeiture if  specified performance  goals are  not achieved  by the  merged
entity  during  the 24  months  beginning January  1,  1996. In  March  1996 the
contingency associated  with 940,955  shares and  63,472 warrants  was  resolved
(performance goal achieved) resulting in contingent consideration of $5,430,326.
The  remaining  contingent consideration  will be  recorded  when the  goals are
achieved and will  be computed  based upon  the stock  price on  such date.  The
acquisition has been accounted for using the purchase method of accounting.
 
    On  July 3,  1996, the Company  signed a letter  of intent to  acquire a 66%
interest in  Oncometrics Imaging  Corp.  (Oncometrics), for  approximately  $4.0
million  in cash. The closing of this transaction is subject to the execution of
a definitive Transaction Agreement and the satisfaction of conditions  customary
in  such agreements. It is  expected that the acquisition  will be accounted for
using the purchase method of accounting and that a portion of the purchase price
will be charged to acquired in-process research and development in the period in
which the transaction is consummated.
 
    On July 18,  1996, the  Company signed  a letter  of intent  to acquire  the
remaining  90% interest in Radco Ventures,  Inc. (Radco), for approximately $1.4
million in cash. The closing of this  transaction is subject to the approval  of
the   Radco  Stockholders  and  the  satisfaction  of  conditions  customary  in
acquisition agreements. It is  expected that the  acquisition will be  accounted
for  using the purchase method of accounting  and that a portion of the purchase
price will be  charged to acquired  in-process research and  development in  the
period in which the transaction is consummated.
 
NOTE B -- PRO FORMA ADJUSTMENTS
    The following adjustments are reflected in the Pro Forma Condensed Combining
Financial Statements under the columns headed "Adjustments".
 
 (1) Purchase Price Allocation-Oncometrics
    To  reflect  the  estimated  allocation of  the  $4  million  purchase price
    associated with the probable acquisition of the 66% interest in Oncometrics.
    The purchase price will be  paid from the net  proceeds of the Offering  and
    has been reflected in the Pro Forma Condensed Combining Balance Sheet as Due
    to Xillix Technologies Corp. The allocation of the purchase price represents
    an  estimate  of  the fair  value  of  the assets  acquired  and liabilities
    assumed, includes approximately $1.6 million of acquired in-process research
    and development and $1.1  million of purchased  technology and reflects  the
    33%  minority interest holdings.  The Pro Forma  Condensed Combining Balance
    Sheet reflects the  estimated $1.6 million  of acquired in-process  research
    and  development as Intangible Assets. Such amount  will be written off as a
    charge to  earnings  in  the  period  subsequent  to  the  acquisition.  The
    allocation  is subject  to change and  is not necessarily  indicative of the
    ultimate purchase price allocation.
 
 (2) Purchase Price Allocation -- Radco
    To reflect  the estimated  allocation  of the  $1.4 million  purchase  price
    associated  with the proposed  acquisition of the  remaining 90% interest in
    Radco.   The    purchase    price    will   be    paid    from    the    net
 
                                      F-35
<PAGE>
                 ACCUMED INTERNATIONAL, INC., AND SUBSIDIARIES
                     NOTES TO PRO FORMA CONDENSED COMBINING
                        FINANCIAL STATEMENTS (CONTINUED)
                                  (UNAUDITED)
 
NOTE B -- PRO FORMA ADJUSTMENTS (CONTINUED)
    proceeds  of The Offering and has been  reflected in The Pro Forma Condensed
    Combining Balance Sheet as Due to Radco Ventures, Inc. The allocation of the
    purchase price  represents an  estimate  of the  fair  value of  the  assets
    acquired  and  liabilities assumed  and  includes approximately  $630,000 of
    acquired in-process  research  and  development.  The  Pro  Forma  Condensed
    Combining   Balance  Sheet  reflects  the  estimated  $630,000  of  acquired
    in-process research and development as  Intangible Assets. Such amount  will
    be  written off  as a  charge to  earnings in  the period  subsequent to the
    acquisition. The  allocation is  subject to  change and  is not  necessarily
    indicative of the ultimate purchase price allocation.
 
 (3) Acquired In-Process Research and Development
    The  estimated  charges  of  approximately  $1.6  million  and  $630,000 for
    acquired in-process research and development relating to the Oncometric  and
    Radco  acquisitions, respectively, are not reflected in the accompanying Pro
    Forma Condensed Combining Statements of Operations. Such amounts will result
    in a charge to earnings in the period subsequent to the acquisitions.
    The charge for acquired in-process research and development relating to  the
    AccuMed acquisition is not reflected in the accompanying Pro Forma Condensed
    Combined  Statements of  Operations for the  year ended  September 30, 1995.
    This charge in the amount of  approximately $4.0 million has been  reflected
    in  the  historical  financial  results  of  AccuMed  International  in  the
    accompanying Pro Forma Condensed Combining  Statement of Operations for  the
    three  months ended December 31, 1995. In addition, a charge of $3.5 million
    relating to the allocation of purchase price to acquire in-process  research
    and development following the resolution of a portion of the contingency has
    been  reflected in the historical financial results of AccuMed International
    in the accompanying  Pro Forma Condensed  Combining Statement of  Operations
    for the three months ended March 31, 1996.
 
 (4) Amortization of Intangibles
    To  reflect the amortization of the excess  of cost over net assets acquired
    and purchased technology of Oncometrics using the straight-line method  over
    10 years.
 
 (5)  To reflect the  minority interest share  (33%) of net  loss of Oncometrics
    Imaging Corp.
 
 (6)  To  eliminate  intercompany  sales  from  AccuMed  International   Limited
    (formerly Sensititre UK Ltd.) to AccuMed (formerly Sensititre U.S.).
 
 (7) To eliminate intercompany profit from the cost of product sold from AccuMed
    International  Limited (formerly  Sensititre UK  Ltd.) to  Accumed (formerly
    Sensititre U.S.).
 
 (8) To  reduce  amortization expense  ($20,000)  for the  amortization  of  the
    purchase  price of AccuMed  in excess of  the fair market  value of acquired
    assets, less assumed  liabilities, and transaction  costs incurred with  the
    acquisition  of  AccuMed,  amortized over  a  10  year life,  and  to adjust
    amortization expense for Sensititre U.S., and Sensititre UK Ltd.
    Adjustment to  reflect  a  reasonable  estimation  ($120,000)  of  corporate
    overhead costs for the three months ended December 31, 1994 carve out period
    for  Sensititre U.S. The estimate is based on a percentage of total sales of
    Radiometer America Inc., (of  which Sensititre U.S. was  a division) to  the
    Sensititre U.S. product line.
 
 (9)  To adjust interest expense for $35,475, assuming that the $430,000 loan to
    finance the Sensititre acquisition occurred on October 1, 1994.
 
                                      F-36
<PAGE>
                 ACCUMED INTERNATIONAL, INC., AND SUBSIDIARIES
                     NOTES TO PRO FORMA CONDENSED COMBINING
                        FINANCIAL STATEMENTS (CONTINUED)
                                  (UNAUDITED)
 
NOTE B -- PRO FORMA ADJUSTMENTS (CONTINUED)
 (10)To adjust amortization expense for  the amortization of the purchase  price
    of  AccuMed in  excess of  the fair  market value  of acquired  assets, less
    assumed liabilities,  and  transaction costs  incurred  with the  Merger  of
    AccuMed,  amortized over a 10 year  life, and to adjust amortization expense
    for Sensititre U.S., and Sensititre UK Ltd.
 
                                      F-37
<PAGE>
- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------
 
    NO  DEALER,  SALES  REPRESENTATIVE  OR ANY  OTHER  PERSON  IS  AUTHORIZED IN
CONNECTION WITH ANY OFFERING MADE HEREBY TO GIVE ANY INFORMATION OR TO MAKE  ANY
REPRESENTATION  NOT CONTAINED HEREIN AND, IF  GIVEN OR MADE, SUCH INFORMATION OR
REPRESENTATION MUST NOT BE RELIED UPON AS HAVING BEEN AUTHORIZED BY THE  COMPANY
OR  THE UNDERWRITERS. THIS PROSPECTUS DOES NOT CONSTITUTE AN OFFER TO SELL, OR A
SOLICITATION OF AN OFFER TO BUY, ANY SECURITY OTHER THAN THE SECURITIES  OFFERED
HEREBY, NOR DOES IT CONSTITUTE AN OFFER TO SELL OR A SOLICITATION OF AN OFFER TO
BUY  ANY  SUCH SECURITIES  TO  ANY PERSON  IN ANY  JURISDICTION  IN WHICH  IT IS
UNLAWFUL TO MAKE  SUCH AN OFFER  OR SOLICITATION. NEITHER  THE DELIVERY OF  THIS
PROSPECTUS  NOR ANY SALE MADE HEREUNDER SHALL UNDER ANY CIRCUMSTANCES CREATE ANY
IMPLICATION THAT THERE HAS BEEN  NO CHANGE IN THE  AFFAIRS OF THE COMPANY  SINCE
THE  DATE HEREOF OR THAT  THE INFORMATION CONTAINED HEREIN  IS CORRECT AS OF ANY
DATE SUBSEQUENT TO THE DATE HEREOF.
 
                           --------------------------
 
                               TABLE OF CONTENTS
 
<TABLE>
<CAPTION>
                                                    PAGE
                                                    -----
<S>                                              <C>
Prospectus Summary.............................           3
Risk Factors...................................           7
The Company....................................          19
Use of Proceeds................................          20
Price Range Of Common Stock....................          21
Dividend Policy................................          21
Capitalization.................................          22
Dilution.......................................          23
Selected Consolidated Financial Data...........          24
Management's Discussion and Analysis of
 Financial Condition and Results of
 Operations....................................          25
Business.......................................          30
Management.....................................          44
Certain Relationships and Related
 Transactions..................................          54
Principal and Selling Stockholders.............          56
Description of Capital Stock...................          60
Underwriting...................................          64
Change in Certifying Accountants...............          65
Available Information..........................          65
Incorporation of Certain Documents by
 Reference.....................................          66
Additional Information.........................          66
Legal Matters..................................          67
Experts........................................          67
Index to Consolidated Financial Statements.....         F-1
</TABLE>
 
                                4,750,000 SHARES
 
                                     [LOGO]
 
                                  COMMON STOCK
 
                             ---------------------
 
                                   PROSPECTUS
 
                             ---------------------
 
                     VECTOR SECURITIES INTERNATIONAL, INC.
 
                                 TUCKER ANTHONY
                                  INCORPORATED
 
                                           , 1996
 
- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------
<PAGE>
                                    PART II
                     INFORMATION NOT REQUIRED IN PROSPECTUS
 
ITEM 14.  OTHER EXPENSES OF ISSUANCE AND DISTRIBUTION
 
    The   following  table  sets  forth  the  costs  and  expenses,  other  than
underwriting discounts and  commissions, payable  by the  Company in  connection
with the issuance and distribution of the securities being registered hereunder.
All of the amounts shown are estimates (except for the SEC and NASD registration
fees).
 
<TABLE>
<CAPTION>
SEC registration fee...........................................  $  10,003
<S>                                                              <C>
NASD registration fee..........................................      3,401
Printing and engraving expenses................................     95,000
Accounting fees and expenses...................................     73,500
Legal fees and expenses........................................    390,000
Blue Sky fees and expenses.....................................     30,000
Miscellaneous..................................................     12,446
                                                                 ---------
    TOTAL......................................................  $ 614,350
                                                                 ---------
                                                                 ---------
</TABLE>
 
    None  of these expenses will be paid by the Selling Stockholders pursuant to
the terms of the agreements  under which the shares of  Common Stock to be  sold
hereby are being registered.
 
ITEM 15.  INDEMNIFICATION OF DIRECTORS AND OFFICERS
 
    The  Company  has  provisions  in  its  Certificate  of  Incorporation which
eliminate the  liability of  the  Company's directors  to  the Company  and  its
stockholders  for  monetary  damages  to the  fullest  extent  permissible under
Delaware law  and  provisions  which  authorize the  Company  to  indemnify  its
directors  and agents by Bylaws, agreements  or otherwise, to the fullest extent
permitted by law. Such limitation of liability does not affect the  availability
of  equitable remedies  such as injunctive  relief or  rescission. The Company's
Bylaws provide that the  Company shall indemnify its  directors and officers  to
the  fullest extent permitted by Delaware  law, including circumstances in which
indemnification is otherwise discretionary under Delaware law.
 
    The Company's  officers  and  directors  are covered  by  a  directors'  and
officers'  liability  insurance  policy  maintained by  the  Company.  Under the
insurance policy,  the  Company  is  entitled to  be  reimbursed  for  indemnity
payments that it is required or permitted to make to its directors and officers.
 
ITEM 16.  EXHIBITS AND INDEX OF EXHIBITS.
 
    (a) Exhibits. The following exhibits are filed herewith.
 
<TABLE>
<CAPTION>
 EXHIBIT
  NUMBER    DESCRIPTION
- ----------  -----------------------------------------------------------------------------------------------------
<C>         <S>
     1.1    Form of Underwriting Agreement.*
     3.1    Certificate of Incorporation of the Registrant (incorporated by reference to the Registrant's
             Transition Report on Form 10-KSB for the transition period ended December 31, 1995 (the "Transition
             Report")).
     3.2    Bylaws of the Registrant (incorporated by reference to the Transition Report).
     4.1    Specimen stock certificate for Common Stock (incorporated by reference to the Transition Report).
     4.2    Certificate of Appointment of American Stock Transfer & Trust Company as Transfer Agent and Registrar
             (incorporated by reference to Pre-Effective Amendment No. 4 to the Registration Statement on Form
             S-1 (Reg. No. 33-48302), filed with the Commission on October 9, 1993 ("Pre-Effective Amendment No.
             4 to Form S-1").
</TABLE>
 
                                      II-1
<PAGE>
<TABLE>
<CAPTION>
 EXHIBIT
  NUMBER    DESCRIPTION
- ----------  -----------------------------------------------------------------------------------------------------
     4.3    Warrant Agreement between the Registrant and American Equities Overseas, Inc. dated as of September
             1, 1995 (incorporated by reference to the Registrant's Registration Statement on Form S-3 (Reg. No.
             33-98902, the "Form S-3") filed with the Commission on October 31, 1995).
<C>         <S>
     4.4    Securities Purchase Agreement between the Registrant and G&G Dispensing, Inc. dated as of March 22,
             1994 (incorporated by reference to the Form S-3).
     4.5    Common Stock Purchase Warrant dated as of March 22, 1994 by the Registrant in favor of G&G
             Dispensing, Inc. (incorporated by reference to the Form S-3).
     4.6    Form of Warrant Agreement between the Registrant and Commonwealth Associates dated as of December 31,
             1994 (incorporated by reference to the Form S-3).
     4.7    Form of Common Stock Purchase Warrant dated as of December 31, 1994 by the Registrant in favor of
             Commonwealth Associates, Inc. (incorporated by reference to the Form S-3).
     4.8    Warrant Agreement between the Registrant and Commonwealth Associates dated as of May 9, 1995
             (incorporated by reference to the Form S-3).
     4.9    Form of Common Stock Purchase Warrant dated as of May 9, 1995 by the Registrant in favor of
             Commonwealth Associates, Inc. (incorporated by reference to the Form S-3).
     4.10   Warrant Agreement between the Registrant and Commonwealth Associates dated as of August 22, 1995
             (incorporated by reference to the Form S-3).
     4.11   Form of Common Stock Purchase Warrant dated as of August 22, 1995 by the Registrant in favor of
             Commonwealth Associates (incorporated by reference to the Form S-3).
     4.12   Form of Letter Agreement between the Registrant and John Robinson dated as of February 21, 1995
             (incorporated by reference to the Form S-3).
     4.13   Form of Registration Rights Agreement between the Registrant and John Robinson dated as of February
             21, 1995 (incorporated by reference to the Form S-3).
     4.14   Form of Common Stock Purchase Warrant dated as of December 29, 1995 by the Registrant in favor of
             Commonwealth Associates (incorporated by reference to the Post-Effective Amendment No. 1 to the
             Company's Registration Statement on Form S-3 (Reg. No. 33-98902), filed with the Commission on May
             30, 1996) ("Post-Effective Amendment No. 1 to Form S-3").
     4.15   Form of Warrant Agreement between the Registrant and Commonwealth Associates dated as of December 29,
             1995 pertaining to Warrants to purchase up to 750,000 shares of Common Stock of the Company
             (incorporated by reference to the Post-Effective Amendment No. 1 to Form S-3).
     4.16   Warrant Certificate dated as of December 29, 1995 registered in the name of The P.L. Thomas Group,
             Inc. representing the right to purchase up to 237,840 shares of Common Stock of the Registrant
             (incorporated by reference to the Post-Effective Amendment No. 1 to the Form S-3).
     4.17   Warrant Certificate dated as of December 29, 1995 registered in the name of The P.L. Thomas Group,
             Inc. representing the right to purchase up to 63,473 shares of Common Stock of the Registrant
             (incorporated by reference to the Post-Effective Amendment No. 1 to the Form S-3).
     4.18   Warrant Certificate dated as of December 29, 1995 registered in the name of The P.L. Thomas Group,
             Inc. representing the right to purchase up to 63,472 shares of Common Stock of the Registrant
             (incorporated by reference to the Post-Effective Amendment No. 1 to the Form S-3).
</TABLE>
 
                                      II-2
<PAGE>
<TABLE>
<CAPTION>
 EXHIBIT
  NUMBER    DESCRIPTION
- ----------  -----------------------------------------------------------------------------------------------------
     4.19   Warrant Agreement dated as of January 25, 1996 between the Registrant and Robert Priddy (incorporated
             by reference to the Post-Effective Amendment No. 1 to the Form S-3).
<C>         <S>
     4.20   Warrant Certificate dated as of January 25, 1996 registered in the name of Robert Priddy representing
             the right to purchase 100,000 shares of Common Stock of the Registrant (incorporated by reference to
             the Post-Effective Amendment No. 1 to the Form S-3).
     4.21   Form of Warrant Agreement between the Registrant and Commonwealth Associates dated as of December 29,
             1995 pertaining to Warrants to purchase up to 104,000 shares of Common Stock of the Registrant,
             including form of Warrant Certificate issued to designees of Commonwealth Associates dated as of
             December 29, 1995 representing the right to purchase up to an aggregate of 104,000 shares of Common
             Stock of the Registrant (incorporated by reference to the Post-Effective Amendment No. 1 to the Form
             S-3).
     4.22   Form of Warrant Agreement dated March 14, 1996 between the Registrant and certain of the Selling
             Securityholders, including form of Warrant Certificate evidencing right to purchase Common Stock at
             $3.42 per share (incorporated by reference to the Post-Effective Amendment No. 1 to the Form S-3).
     4.23   Form of Warrant Agreement dated March 14, 1996 between the Registrant and certain of the Selling
             Securityholders, including form of Warrant Certificate evidencing right to purchase Common Stock at
             $3.87 per share (incorporated by reference to the Post-Effective Amendment No. 1 to the Form S-3).
     5.1    Opinion of Graham & James LLP, counsel to the Registrant, regarding the legality of the securities
             offered hereby.*
    10.1    Agreement and Plan of Reorganization dated as of April 21, 1995 between the Registrant and AccuMed,
             Inc., as amended by Amendment No. 1 dated as of August 1, 1995 and Amendment No. 2 dated as of
             October 6, 1995 (incorporated by reference to the Registrant's Registration Statement on Form S-4
             (File No. 33-99680) (the "Form S-4") filed with the Commission on November 22, 1995).
    10.2    The Registrant's Board of Directors Compensation Plan (the "Plan") (incorporated by reference to
             Exhibit 10.11 to Form S-1) with Minutes of Board of Directors meeting dated January 18, 1996
             amending the Plan by authorizing grants of stock options to non-employee directors (incorporated by
             reference to the Transaction Report).**
    10.3    Sale and Leaseback Agreement between the Registrant and Leasetec, Inc. (incorporated by reference to
             the Registration Statement or Form S-1 (Reg. No. 33-48302) filed with the Commission on June 3,
             1992) ("Form S-1").
    10.4    Employment Agreement between the Registrant and Peter P. Gombrich dated August 1, 1994 (incorporated
             by reference to the Transition Report).**
    10.5    Employment Letter between the Registrant and Kenneth Miller dated March 2, 1995 (incorporated by
             reference to the Transition Report).**
    10.6    Employment Letter between the Registrant and Mark L. Santor dated February 28, 1995 (incorporated by
             reference to the Transition Report).**
    10.7    Employment Letter between the Registrant and Michael Burke dated April 21, 1995 (incorporated by
             reference to the Transition Report).**
    10.8    Employment Agreement between the Registrant and Norman J. Pressman dated June 13, 1996 and Addendum
             to Employment Agreement between the Registrant and Norman J. Pressman dated July 16, 1996.**
</TABLE>
 
                                      II-3
<PAGE>
<TABLE>
<CAPTION>
 EXHIBIT
  NUMBER    DESCRIPTION
- ----------  -----------------------------------------------------------------------------------------------------
    10.9    European Distributor Agreement, dated November 22, 1993, by and between the Company and Sclavo
             (incorporated by reference to Exhibit 10.22 to the Registrant's Annual Report on Form 10-KSB for the
             year ended September 30, 1994 (the "1994 10-K").
<C>         <S>
    10.10   United States Distributor Agreement, dated November 22, 1993, by and between the Registrant and
             Sclavo (incorporated by reference to the 1994 10-K).
    10.11   Joint Research and Development Agreement, dated November 22, 1993, by and between the Registrant and
             Sclavo (incorporated by reference to Exhibit 10.24 to the 1994 10-K).
    10.12   Securities Purchase Agreement, dated November 22, 1993, by and between the Registrant and Sclavo
             (incorporated by reference to Exhibit 10.25 to the 1994 10-K).
    10.13   Escrow Agreement dated as of March 22, 1994, between the Registrant and G&G Dispensing, Inc.
             (incorporated by reference to Exhibit 10.13 to the Form S-4).
    10.14   License Agreement between the Registrant and Becton, Dickinson and Company effective as of October
             11, 1995 (incorporated by reference to Exhibit 10.17 to the Form S-4).
    10.15   Research and Development Service Agreement between the Registrant and RADCO Ventures, Inc. dated
             March 15, 1996.+
    10.16   License and Distribution Agreement dated February 20, 1996 between the Registrant and BioKit, S.A.
             (incorporated by reference to the Transition Report).
    10.17   1995 Stock Option Plan (incorporated by reference to the Transition Report).
    10.18   Form of Non-Qualified Stock Option Agreement governing options granted to former employees of
             AccuMed, Inc. pursuant to the Agreement and Plan of Reorganization dated as of April 21, 1995, as
             amended (incorporated by reference to the Transition Report).
    10.19   Form of Non-Qualified Stock Option Agreement governing options granted to employees and consultants
             under the 1995 Stock Option Plan (incorporated by reference to the Transition Report).
    10.20   Form of Incentive Stock Option Agreement Governing options granted to employees under the 1995 Stock
             Option Plan (incorporated by reference to the Transition Report).
    10.21   Amended and Restated 1990 Stock Option Plan (incorporated by reference to Form S-1).
    10.22   The Company's Amended and Restated 1992 Stock Option Plan (incorporated by reference to Pre-Effective
             Amendment No. 1 to Form SB-2, filed with the Commission on November 8, 1993).
    10.23   Lease between the Company and NCP, LTD dated February 20, 1995 pertaining to the offices located at
             29299 Clemens, Suite I-K, Westlake, Ohio 44145 (incorporated by reference to the Transition Report).
    10.24   Franklin Square Commercial Lease dated July 13, 1994 between the Company and the Lumber Company as
             Agent for the Beneficiary of LaSalle National Trust, N.A. pertaining to the premises located at
             Suite 401, 4th Floor North, 900 North Franklin Street, Chicago, Illinois (incorporated by reference
             to the Transition Report).
    10.25   Rider 1 to Franklin Square Commercial Lease between the Company and the Lumber Company dated May 30,
             1996.
    10.26   License Agreement dated July 6, 1994, between the Company, Vanellus AB, and Uppsala Bildbehandlings
             AB (incorporated by reference to the Transition Report).
    10.27   Collaboration Agreement and Worldwide Exclusive License between the Company and G&G Dispensing, Inc.
             dated March 22, 1994.
</TABLE>
 
                                      II-4
<PAGE>
<TABLE>
<CAPTION>
 EXHIBIT
  NUMBER    DESCRIPTION
- ----------  -----------------------------------------------------------------------------------------------------
    10.28   Form of Custody Agreement by each of the Selling Stockholders.
<C>         <S>
    10.29   Form of Lock-Up Agreement between each of the Selling Stockholders and the Underwriters.
    10.30   Form of Irrevocable Power of Attorney of Selling Stockholders.
    10.31   O.E.M. Supply Agreement between Olympus America, Inc., Precision Instrument division and the Company
             dated March 31, 1996.+
    10.32   Securities Purchase Agreement dated May 31, 1996 among the Company, Kingdon Associates, L.P., Kingdon
             Partners, L.P., and Kingdon Offshore N.V. (incorporated by reference to the Registration Statement
             on Form S-3 (Reg. No. 333-07681) filed with the Commission on July 3, 1996).
    10.33   Promissory Note in the original principal amount of $61,000 made May 22, 1996 by Peter P. Gombrich in
             favor of the Registrant.
    10.34   Non-negotiable Promissory Note in the original principal amount of $775,000 made July 22, 1996 by the
             Registrant in favor of RADCO Ventures, Inc.
    10.35   Employment Separation Agreement and Release between the Registrant and Kenneth D. Miller dated June
             27, 1996.**
    10.36   Employment Separation Agreement and Release between the Registrant and Mark L. Santor dated June 10,
             1996.**
    23.1    Consent of Graham & James, LLP (contained in Exhibit 5.1).
    23.2    Consent of Coopers & Lybrand LLP.
    23.3    Consent of Coopers & Lybrand (UK).
    23.4    Consent of KPMG Peat Marwick LLP.
    23.5    Consent of KPMG.
    23.6    Consent of Banner & Allegreti, Ltd.
    23.7    Consent of Townsend and Townsend and Crew.
    24.1    Powers of Attorney included on signature page to this Registration Statement.
</TABLE>
 
- ------------------------
*   Indicates an Exhibit to be filed by amendment.
 
**    Represents  a  management contract  or  compensatory  plan  or arrangement
    required to be filed as an exhibit to this Registration Statement.
 
+   Confidential treatment requested as to certain portions.
 
ITEM 17.  UNDERTAKINGS.
 
    The undersigned registrant hereby undertakes:
 
        (1) That,  for  the  purpose  of determining  any  liability  under  the
    Securties  Act, the Registrant will treat  the information ommitted from the
    form of Prospectus filed  as part of this  Registration Statement as of  the
    time the Commission declares it effective.
 
        (2)  That,  for  the  purpose of  determining  any  liability  under the
    Securities Act, each such post-effective amendment  shall be deemed to be  a
    new  registration statement relating to  the securities offered therein, and
    the offering of  such securities  at that  time shall  be deemed  to be  the
    initial bona fide offering thereof.
 
    Insofar  as indemnification for liabilities arising under the Securities Act
of 1933  (the "Securities  Act") may  be permitted  to directors,  officers  and
controlling  persons of  the Company  pursuant to  the foregoing  provisions, or
otherwise, the Company has  been advised that in  the opinion of the  Securities
and  Exchange  Commission  such  indemnification  is  against  public  policy as
expressed in the Securities Act
 
                                      II-5
<PAGE>
and is, therefore, unenforceable. In the event that a claim for  indemnification
against  such liabilities  (other than  the payment  by the  Company of expenses
incurred or paid by a director, officer or controlling person of the Company  in
the  successful defense of any  action, suit or proceeding)  is asserted by such
director, officer or controlling person in connection with the securities  being
registered,  the Company will, unless  in the opinion of  its counsel the matter
has been settled  by controlling  precedent, submit  to a  court of  appropriate
jurisdiction  the question whether such indemnification  by it is against public
policy as expressed in the Act and will be governed by the final adjudication of
such issue.
 
                                      II-6
<PAGE>
                                   SIGNATURES
 
    Pursuant  to the requirements of the  Securities Act of 1933, the Registrant
certifies that  it  has  reasonable grounds  to  believe  it meets  all  of  the
requirements  for filing on Form S-2 and duly caused this Registration Statement
to be signed on its behalf by the undersigned, hereunto duly authorized, in  the
City of Chicago, State of Illinois on July 26, 1996.
 
                                          ACCUMED INTERNATIONAL, INC.
 
                                          By:        /s/ PETER P. GOMBRICH
 
                                             -----------------------------------
                                                      Peter P. Gombrich
                                                   CHIEF EXECUTIVE OFFICER
 
                               POWER OF ATTORNEY
 
    KNOW ALL PERSONS BY THESE PRESENTS, that each person whose signature appears
below  constitutes and  appoints, jointly and  severally, Peter  P. Gombrich and
Mark L. Santor, and  each of them, attorneys-in-fact  for the undersigned,  each
with  the power of substitution, for the  undersigned in any and all capacities,
to sign any and all amendments  to this Registration Statement (including  post-
effective amendments) and any new registration statement filed under Rule 462(b)
under  the Securities Act of 1933) and any post-effective amendment thereto, and
to file the same, with all  exhibits thereto, and other documents in  connection
therewith,  with the  Securities and  Exchange Commission,  hereby ratifying and
confirming that each of said attorneys-in-fact or his substitute or  substitutes
may lawfully do or cause to be done by virtue hereof.
 
    In  accordance with  the requirements  of the  Securities Act  of 1933, this
Registration  Statement  has  been  signed  by  the  following  persons  in  the
capacities and on the dates stated.
 
<TABLE>
<C>                                                     <S>                                       <C>
                      SIGNATURE                                          TITLE                         DATE
- ------------------------------------------------------  ----------------------------------------  ---------------
 
                /s/ PETER P. GOMBRICH                   Chairman of the Board, Chief Executive     July 26, 1996
     -------------------------------------------         Officer and President
                 (Peter P. Gombrich)                     (Principal Executive Officer)
 
                  /s/ MARK L. SANTOR                    Chief Financial Officer (Principal         July 26, 1996
     -------------------------------------------         Financial and Accounting Officer)
                   (Mark L. Santor)
 
                  /s/ JOHN H. ABELES                    Director                                   July 26, 1996
     -------------------------------------------
                   (John H. Abeles)
 
                  /s/ HAROLD S. BLUE                    Director                                   July 26, 1996
     -------------------------------------------
                   (Harold S. Blue)
 
                 /s/ JACK H. HALPERIN                   Director                                   July 26, 1996
     -------------------------------------------
                  (Jack H. Halperin)
</TABLE>
 
                                     II-11
<PAGE>
<TABLE>
<C>                                                     <S>                                       <C>
                                                        Director                                      , 1996
     -------------------------------------------
                  (Paul F. Lavallee)
 
               /s/ JOSEPH W. PLANDOWSKI                 Director                                   July 26, 1996
     -------------------------------------------
                (Joseph W. Plandowski)
 
               /s/ LEONARD M. SCHILLER                  Director                                   July 26, 1996
     -------------------------------------------
                (Leonard M. Schiller)
</TABLE>
 
                                     II-12
<PAGE>
                               INDEX TO EXHIBITS
 
<TABLE>
<CAPTION>
 EXHIBIT
  NUMBER    DESCRIPTION
- ----------  -----------------------------------------------------------------------------------------------------
<C>         <S>
     1.1    Form of Underwriting Agreement.*
     3.1    Certificate of Incorporation of the Registrant (incorporated by reference to the Registrant's
             Transition Report on Form 10-KSB for the transition period ended December 31, 1995 (the "Transition
             Report")).
     3.2    Bylaws of the Registrant (incorporated by reference to the Transition Report).
     4.1    Specimen stock certificate for Common Stock (incorporated by reference to the Transition Report).
     4.2    Certificate of Appointment of American Stock Transfer & Trust Company as Transfer Agent and Registrar
             (incorporated by reference to Pre-Effective Amendment No. 4 to the Registration Statement on Form
             S-1 (Reg. No. 33-48302), filed with the Commission on October 9, 1993 ("Pre-Effective Amendment No.
             4 to Form S-1").
     4.3    Warrant Agreement between the Registrant and American Equities Overseas, Inc. dated as of September
             1, 1995 (incorporated by reference to the Registrant's Registration Statement on Form S-3 (Reg. No.
             33-98902, the "Form S-3") filed with the Commission on October 31, 1995).
     4.4    Securities Purchase Agreement between the Registrant and G&G Dispensing, Inc. dated as of March 22,
             1994 (incorporated by reference to the Form S-3).
     4.5    Common Stock Purchase Warrant dated as of March 22, 1994 by the Registrant in favor of G&G
             Dispensing, Inc. (incorporated by reference to the Form S-3).
     4.6    Form of Warrant Agreement between the Registrant and Commonwealth Associates dated as of December 31,
             1994 (incorporated by reference to the Form S-3).
     4.7    Form of Common Stock Purchase Warrant dated as of December 31, 1994 by the Registrant in favor of
             Commonwealth Associates, Inc. (incorporated by reference to the Form S-3).
     4.8    Warrant Agreement between the Registrant and Commonwealth Associates dated as of May 9, 1995
             (incorporated by reference to the Form S-3).
     4.9    Form of Common Stock Purchase Warrant dated as of May 9, 1995 by the Registrant in favor of
             Commonwealth Associates, Inc. (incorporated by reference to the Form S-3).
     4.10   Warrant Agreement between the Registrant and Commonwealth Associates dated as of August 22, 1995
             (incorporated by reference to the Form S-3).
     4.11   Form of Common Stock Purchase Warrant dated as of August 22, 1995 by the Registrant in favor of
             Commonwealth Associates (incorporated by reference to the Form S-3).
     4.12   Form of Letter Agreement between the Registrant and John Robinson dated as of February 21, 1995
             (incorporated by reference to the Form S-3).
     4.13   Form of Registration Rights Agreement between the Registrant and John Robinson dated as of February
             21, 1995 (incorporated by reference to the Form S-3).
     4.14   Form of Common Stock Purchase Warrant dated as of December 29, 1995 by the Registrant in favor of
             Commonwealth Associates (incorporated by reference to the Post-Effective Amendment No. 1 to the
             Company's Registration Statement on Form S-3 (Reg. No. 33-98902), filed with the Commission on May
             30, 1996) ("Post-Effective Amendment No. 1 to Form S-3").
     4.15   Form of Warrant Agreement between the Registrant and Commonwealth Associates dated as of December 29,
             1995 pertaining to Warrants to purchase up to 750,000 shares of Common Stock of the Company
             (incorporated by reference to the Post-Effective Amendment No. 1 to Form S-3).
</TABLE>
<PAGE>
<TABLE>
<CAPTION>
 EXHIBIT
  NUMBER    DESCRIPTION
- ----------  -----------------------------------------------------------------------------------------------------
<C>         <S>
     4.16   Warrant Certificate dated as of December 29, 1995 registered in the name of The P.L. Thomas Group,
             Inc. representing the right to purchase up to 237,840 shares of Common Stock of the Registrant
             (incorporated by reference to the Post-Effective Amendment No. 1 to the Form S-3).
     4.17   Warrant Certificate dated as of December 29, 1995 registered in the name of The P.L. Thomas Group,
             Inc. representing the right to purchase up to 63,473 shares of Common Stock of the Registrant
             (incorporated by reference to the Post-Effective Amendment No. 1 to the Form S-3).
     4.18   Warrant Certificate dated as of December 29, 1995 registered in the name of The P.L. Thomas Group,
             Inc. representing the right to purchase up to 63,472 shares of Common Stock of the Registrant
             (incorporated by reference to the Post-Effective Amendment No. 1 to the Form S-3).
     4.19   Warrant Agreement dated as of January 25, 1996 between the Registrant and Robert Priddy (incorporated
             by reference to the Post-Effective Amendment No. 1 to the Form S-3).
     4.20   Warrant Certificate dated as of January 25, 1996 registered in the name of Robert Priddy representing
             the right to purchase 100,000 shares of Common Stock of the Registrant (incorporated by reference to
             the Post-Effective Amendment No. 1 to the Form S-3).
     4.21   Form of Warrant Agreement between the Registrant and Commonwealth Associates dated as of December 29,
             1995 pertaining to Warrants to purchase up to 104,000 shares of Common Stock of the Registrant,
             including form of Warrant Certificate issued to designees of Commonwealth Associates dated as of
             December 29, 1995 representing the right to purchase up to an aggregate of 104,000 shares of Common
             Stock of the Registrant (incorporated by reference to the Post-Effective Amendment No. 1 to the Form
             S-3).
     4.22   Form of Warrant Agreement dated March 14, 1996 between the Registrant and certain of the Selling
             Securityholders, including form of Warrant Certificate evidencing right to purchase Common Stock at
             $3.42 per share (incorporated by reference to the Post-Effective Amendment No. 1 to the Form S-3).
     4.23   Form of Warrant Agreement dated March 14, 1996 between the Registrant and certain of the Selling
             Securityholders, including form of Warrant Certificate evidencing right to purchase Common Stock at
             $3.87 per share (incorporated by reference to the Post-Effective Amendment No. 1 to the Form S-3).
     5.1    Opinion of Graham & James LLP, counsel to the Registrant, regarding the legality of the securities
             offered hereby.*
    10.1    Agreement and Plan of Reorganization dated as of April 21, 1995 between the Registrant and AccuMed,
             Inc., as amended by Amendment No. 1 dated as of August 1, 1995 and Amendment No. 2 dated as of
             October 6, 1995 (incorporated by reference to the Registrant's Registration Statement on Form S-4
             (File No. 33-99680) (the "Form S-4") filed with the Commission on November 22, 1995).
    10.2    The Registrant's Board of Directors Compensation Plan (the "Plan") (incorporated by reference to
             Exhibit 10.11 to Form S-1) with Minutes of Board of Directors meeting dated January 18, 1996
             amending the Plan by authorizing grants of stock options to non-employee directors (incorporated by
             reference to the Transaction Report).**
    10.3    Sale and Leaseback Agreement between the Registrant and Leasetec, Inc. (incorporated by reference to
             the Registration Statement or Form S-1 (Reg. No. 33-48302) filed with the Commission on June 3,
             1992) ("Form S-1").
    10.4    Employment Agreement between the Registrant and Peter P. Gombrich dated August 1, 1994 (incorporated
             by reference to the Transition Report).**
    10.5    Employment Letter between the Registrant and Kenneth Miller dated March 2, 1995 (incorporated by
             reference to the Transition Report).**
</TABLE>
<PAGE>
<TABLE>
<CAPTION>
 EXHIBIT
  NUMBER    DESCRIPTION
- ----------  -----------------------------------------------------------------------------------------------------
<C>         <S>
    10.6    Employment Letter between the Registrant and Mark L. Santor dated February 28, 1995 (incorporated by
             reference to the Transition Report).**
    10.7    Employment Letter between the Registrant and Michael Burke dated April 21, 1995 (incorporated by
             reference to the Transition Report).**
    10.8    Employment Agreement between the Registrant and Norman J. Pressman dated June 13, 1996 and Addendum
             to Employment Agreement between the Registrant and Norman J. Pressman dated July 16, 1996.**
    10.9    European Distributor Agreement, dated November 22, 1993, by and between the Registrant and Sclavo
             (incorporated by reference to Exhibit 10.22 to the Registrant's Annual Report on Form 10-KSB for the
             year ended September 30, 1994 (the "1994 10-K").
    10.10   United States Distributor Agreement, dated November 22, 1993, by and between the Registrant and
             Sclavo (incorporated by reference to the 1994 10-K).
    10.11   Joint Research and Development Agreement, dated November 22, 1993, by and between the Registrant and
             Sclavo (incorporated by reference to Exhibit 10.24 to the 1994 10-K).
    10.12   Securities Purchase Agreement, dated November 22, 1993, by and between the Registrant and Sclavo
             (incorporated by reference to Exhibit 10.25 to the 1994 10-K).
    10.13   Escrow Agreement dated as of March 22, 1994, between the Registrant and G&G Dispensing, Inc.
             (incorporated by reference to Exhibit 10.13 to the Form S-4).
    10.14   License Agreement between the Registrant and Becton, Dickinson and Registrant effective as of October
             11, 1995 (incorporated by reference to Exhibit 10.17 to the Form S-4).
    10.15   Research and Development Service Agreement between the Registrant and RADCO Ventures, Inc. dated
             March 15, 1996.+
    10.16   License and Distribution Agreement dated February 20, 1996 between the Registrant and BioKit, S.A.
             (incorporated by reference to the Transition Report).
    10.17   1995 Stock Option Plan (incorporated by reference to the Transition Report).
    10.18   Form of Non-Qualified Stock Option Agreement governing options granted to former employees of
             AccuMed, Inc. pursuant to the Agreement and Plan of Reorganization dated as of April 21, 1995, as
             amended (incorporated by reference to the Transition Report).
    10.19   Form of Non-Qualified Stock Option Agreement governing options granted to employees and consultants
             under the 1995 Stock Option Plan (incorporated by reference to the Transition Report).
    10.20   Form of Incentive Stock Option Agreement Governing options granted to employees under the 1995 Stock
             Option Plan (incorporated by reference to the Transition Report).
    10.21   Amended and Restated 1990 Stock Option Plan (incorporated by reference to Form S-1).
    10.22   The Registrant's Amended and Restated 1992 Stock Option Plan (incorporated by reference to
             Pre-Effective Amendment No. 1 to Form SB-2, filed with the Commission on November 8, 1993).
    10.23   Lease between the Registrant and NCP, LTD dated February 20, 1995 pertaining to the offices located
             at 29299 Clemens, Suite I-K, Westlake, Ohio 44145 (incorporated by reference to the Transition
             Report).
    10.24   Franklin Square Commercial Lease dated July 13, 1994 between the Registrant and the Lumber Registrant
             as Agent for the Beneficiary of LaSalle National Trust, N.A. pertaining to the premises located at
             Suite 401, 4th Floor North, 900 North Franklin Street, Chicago, Illinois (incorporated by reference
             to the Transition Report).
    10.25   Rider 1 to Franklin Square Commercial Lease between the Registrant and the Lumber Registrant dated
             May 30, 1996.
</TABLE>
<PAGE>
<TABLE>
<CAPTION>
 EXHIBIT
  NUMBER    DESCRIPTION
- ----------  -----------------------------------------------------------------------------------------------------
<C>         <S>
    10.26   License Agreement dated July 6, 1994, between the Registrant, Vanellus AB, and Uppsala
             Bildbehandlings AB (incorporated by reference to the Transition Report).
    10.27   Collaboration Agreement and Worldwide Exclusive License between the Registrant and G&G Dispensing,
             Inc. dated March 22, 1994.
    10.28   Form of Custody Agreement by each of the Selling Stockholders.
    10.29   Form of Lock-Up Agreement between each of the Selling Stockholders and the Underwriters.
    10.30   Form of Irrevocable Power of Attorney of Selling Stockholders.
    10.31   O.E.M. Supply Agreement between Olympus America, Inc., Precision Instrument division and the
             Registrant dated March 31, 1996.+
    10.32   Securities Purchase Agreement dated May 31, 1996 among the Registrant, Kingdon Associates, L.P.,
             Kingdon Partners, L.P., and Kingdon Offshore N.V. (incorporated by reference to the Registration
             Statement on Form S-3 (Reg. No. 333-07681) filed with the Commission on July 3, 1996).
    10.33   Promissory Note in the original principal amount of $61,000 made May 22, 1996 by Peter P. Gombrich in
             favor of the Registrant.
    10.34   Non-negotiable Promissory Note in the original principal amount of $775,000 made July 22, 1996 by the
             Registrant in favor of RADCO Ventures, Inc.
    10.35   Employment Separation Agreement and Release between the Registrant and Kenneth D. Miller dated June
             27, 1996.**
    10.36   Employment Separation Agreement between the Registrant and Mark L. Santor dated June 10, 1996.**
    23.1    Consent of Graham & James, LLP (contained in Exhibit 5.1).
    23.2    Consent of Coopers & Lybrand LLP.
    23.3    Consent of Coopers & Lybrand (UK).
    23.4    Consent of KPMG Peat Marwick LLP.
    23.5    Consent of KPMG.
    23.6    Consent of Banner & Allegreti, Ltd.
    23.7    Consent of Townsend and Townsend and Crew.
    24.1    Powers of Attorney included on signature page to this Registration Statement.
</TABLE>
 
- ------------------------
*   Indicates an Exhibit to be filed by amendment.
 
**    Represents  a  management contract  or  compensatory  plan  or arrangement
    required to be filed as an exhibit to this Registration Statement.
 
+   Confidential treatment requested as to certain portions.

<PAGE>

                                                                    Exhibit 10.8

                                 EMPLOYMENT AGREEMENT

This Employment Agreement (the "Agreement") is made this 13th day of June, 1996,
by and between AccuMed International, Inc., a Delaware corporation (the
"Employer"), and Norman J. Pressman (the "Executive").

                                      WITNESSETH

WHEREAS, Employer desires to employ Executive and Executive is willing to accept
such employment, all upon the terms and conditions hereinafter set forth and
those terms and conditions set forth in the Employer's Letter Offer to Executive
which is superseded by the terms and conditions herein.

NOW, THEREFORE, in consideration of the mutual covenants and obligations
hereinafter set forth, the parties hereto agree as follows:

1.  EMPLOYMENT AND DUTIES.  Employer hereby employs Executive and Executive
    accepts employment with Employer as President, Cytopathology Division and
    Corporate Senior Vice President, reporting to the Chairman/CEO of the
    employer, and Executive shall perform those duties as usual and customary
    as a Division President and Corporate Senior Vice President (i.e. to
    include but not be limited to Financial and Administrative duties).
    Executive shall perform such other or additional duties as shall be
    assigned to Executive from time to time by the Chairman/CEO consistent with
    his position.


<PAGE>

2.  COMPENSATION AND BENEFITS.  During the term of this Agreement, Employer
    shall pay Executive the following compensation:

    a.   SALARY  Executive shall receive an annual salary which shall be no
         less than $157,500.00 payable semi-monthly in accordance with
         Employer's regular payroll procedures.  Executive shall also receive
         annual performance and compensation reviews which will be conducted by
         the Chairman/CEO and the Compensation Committee of the Board of
         Directors, or its designee.

    b.   BONUS  Executive shall be eligible to receive bonuses which shall be
         up to thirty percent (30%) of Executive's annual salary, based upon
         performance of mutually agreed upon goals/objectives.  Two thirds
         (2/3) of said bonus shall be based on quarterly objectives and shall
         be paid quarterly.  One third (1/3) of said bonus shall be based upon
         annual objectives and shall be paid annually.  However, Executive's
         1996 bonus shall be pro-rated.  The bonus year shall be the calendar
         year.  The Employer, at its sole and absolute discretion may pay
         Executive a bonus in excess of thirty percent (30%) of his annual
         salary.

    c.   STOCK OPTIONS  Pursuant to the terms of the Employer's stock option
         plan entitled "Alamar Biosciences, Inc. 1995 Stock Option Plan" (the
         "Plan") (a copy of which is attached hereto as Exhibit B), Executive
         has been granted an option to purchase 250,000 shares of the
         Employer's


                                         -2-

<PAGE>

         Common Stock,  which option shall be exercisable in accordance with
         the following schedule:

              Exercise   Amount
              Date       ------
              --------

              7/5/96 -   50,000 shares
              7/5/97 -   50,000 shares
              7/5/98 -   50,000 shares
              7/5/99 -   50,000 shares
              7/5/00 -   50,000 shares

         The price of the first grant of 50,000 options, which is exercisable
         on the later of July 5, 1996 or the date Executive commences active
         employment, will be set at 75% of the Fair Market Value ("FMV" being
         the NASDAQ closing price of the stock) of a share of the Common Stock
         of the Employer on the date this Agreement is signed and  may be
         exercisable at not less than the grant price.  The price of the
         remaining 200,000 options will be set at 100% of the FMV on the later
         of July 5, 1996 or the date Executive commences active employment, and
         the exercise price shall be not more than the grant price.

    d.   HIRING BONUS  Employer shall grant Executive 25,000 shares of
         Employer's Common Stock at FMV on the date of the signing of this
         Agreement.  Said shares shall be  delivered no later than thirty (30)
         days after Executive commences active employment.  Executive shall be
         prohibited from selling or assigning said Stock for a period of
         eighteen (18) months from the date of the grant.  In the event of
         Executive's death, this restriction shall be lifted and the
         Executive's estate,


                                         -3-


<PAGE>

         trustee, or beneficiary entitled to such Stock by reason of his death
         shall be permitted to sell such Stock without restriction.

    e.   INCENTIVE STOCK OPTION PLAN  In each year of his employment, the
         Executive shall be eligible to earn a grant of incentive stock
         options, of up to 50,000 shares of the Employer's Common Stock, in
         accordance with the terms of the Plan and approval by the Chairman/CEO
         and Board of Directors, and based upon performance of mutually agreed
         upon goals and objectives.

    f.   BENEFITS  The Executive shall be eligible for such Employer benefits
         as exist for senior executives of Employer and subject to the terms
         and conditions of third party policies.  Should Executive not be
         eligible to receive any of the Employer's benefits or should any
         carrier decline to cover Executive, Employer will use its best efforts
         to find a comparable replacement policy on an individual basis.  Those
         benefits which exist on July 5, 1996 are as follows:

         (1)  Medical Insurance with $15,000 Life/AD&D fully paid by Employer.
              Dependent medical insurance at the option of the employee


         (2)  Excess Life and AD&D Benefit 1 1/2 times base salary (less
              $15,000) up to $150,000 cap, fully paid by the Employer


                                         -4-

<PAGE>

         (3)  Short Term Disability $500/wk benefit for 26 weeks fully paid by
              Employer

         (4)  Long Term Disability 60% of monthly salary ($6000/mo cap) to age
              65/own occupation

         (5)  Dental Insurance - option available.  No Employer  contribution

         The Employer will reimburse the Executive for any COBRA expense
         incurred by Executive to maintain his health insurance during the
         waiting period before Executive is eligible to receive the Employer's
         medical insurance.

    g.   EXPENSES  Reimbursement of reasonable business expenses with
         submission of expense reports and receipts.

    h.   AUTO ALLOWANCE  $500/month plus reasonable maintenance expenses.

    i.   LOAN  The Employer shall loan Executive up to $85,200 without interest
         for the use by Executive to pay the tax liability which he will incur
         as a result of the Hiring Bonus.  Said loan will be repaid by
         Executive in installments and in amounts as agreed between Executive
         and the Chairman/CEO.  The Executive will provide reasonable security
         for said loan as required by the Employer.  Should Executive terminate
         the Agreement for reasons other than due to a breach of this Agreement
         by the Employer, the loan shall become due and payable immediately.

    j.   RELOCATION EXPENSES  Other compensation shall be provided as set forth
         in Exhibit A, which is made a part hereof.


                                         -5-

<PAGE>



    k.   OTHER COMPENSATION  Nothing herein shall preclude Executive from
         receiving any additional compensation or from participating in the
         present or future life, major medical, hospitalization, profit
         sharing, pension or retirement, sickness or disability or other plan
         for the benefit of the employees of Employer. In each case, Executive
         will participate to the extent and in the manner approved or
         determined by the Board of Directors of the Employer.

3.  EXTENT OF SERVICES.  Executive shall devote his  entire attention and
    energy to the business and affairs of the Employer on a full-time basis and
    shall not be engaged in any other business activity, whether or not such
    business activity is pursued for gain, profit or other pecuniary advantage,
    unless Employer otherwise consents; but this shall not be construed as
    preventing employee from investing Executive's assets in such form or
    manner as will not require any services on the part of the Executive in the
    operation of the affairs of the companies in which such investments are
    made, provided such investments do not conflict with the Company's
    interests or otherwise violate this Agreement.

4.  TERM.  The term of this Agreement shall be five years, commencing July 5,
    1996, subject to the following:

    a.   ILLNESS OR DISABILITY  If Executive is absent from employment by
         reason of illness or other incapacity for more than 180 consecutive
         days, Employer may, after such 180 days but only if Executive has not
         returned to active
                                         -6-

<PAGE>

         employment with Employer, terminate Executive's employment by 
         furnishing him with at least 30 days written notice of such intention
         to termination.  Employer shall be obligated to pay Executive's salary
         to the date of termination , less that amount equal to the weekly Short
         Term Disability Benefit, which date shall be for all purposes of this 
         Agreement, the date of termination of his employment.

    b.   DEATH.  If Executive shall die, thereupon his  employment shall
         terminate, and Employer shall be only obligated to pay Executive's
         salary to the end of the month during which Executive dies.

    c.   TERMINATION BY EMPLOYER.  Upon written notice, Employer may terminate
         this Agreement at any time:

         (i)  For Cause.  As used herein, "Cause" is defined to mean (1) any
              act of fraud, misappropriation, embezzlement, or like act of
              dishonesty; (2) conviction of a felony; (3) other behavior which
              adversely reflects on the reputation of Employer such as
              substance abuse, public intoxication, etc.; or (4) material
              failure to perform the services and duties described herein,
              material violation of any other provisions set forth herein, or
              material breach of any fiduciary duty to Employer, if the
              material failure, violation, or breach unreasonably continues
              after written notice thereof is given to the Executive by the
              Employer and further provided

                                         -7-

<PAGE>

              that Executive is given a fair and reasonable opportunity to cure.

              In the event of Cause, Employer shall pay Executive's salary up
              to the date of the delivery of notice of termination, which date
              shall be for all purposes of this Agreement, the date of
              termination of his  employment.

         (ii) Without Cause.  In the event the Employer elects to exercise its
              right, at its sole discretion, to terminate the Executive without
              cause, the Executive shall be given at least six (6) months
              notice in writing.

    d.   TERMINATION BY EXECUTIVE  Executive may terminate this Agreement for
         any reason after providing six (6) months  written notice.  If
         Employer is in breach of this Agreement,  Executive may, in addition
         and without prejudice to any other remedies for a breach hereof,
         terminate this Agreement, after providing written notice to the
         Employer and providing Employer with a reasonable opportunity to cure.
         If the Employer thereafter fails to cure, all of Executive's further
         obligations hereunder shall terminate, except for the requirements of
         Sections 8 and 10 hereof.

5.  SEVERANCE.

    a.   If Executive terminates this Agreement, pursuant to Section 4(d)
         hereof, for reasons other than if Employer is in breach of this
         Agreement as provided in Section


                                         -8-

<PAGE>

         4(d) above, within eighteen months of its execution,  the stock
         granted as a hiring bonus shall be returned to the Employer by the
         Executive or the then-holder thereof without payment of any
         consideration for such Stock by the Employer.

    b.   If Executive terminates this Agreement within eighteen months of its
         execution, except if Employer is in breach of this Agreement, as
         provided in Section 4(d) above housing and moving related expenditures
         incurred by Employer on Executive's behalf shall be reimbursed and
         returned by Executive to Employer.

    c.   If Employer terminates this Agreement without Cause  within sixty (60)
         months of its execution, in addition to the notice requirement
         provided in Section 4(c)(ii) above, Employer will pay Executive his
         then current annual salary for twelve (12) months, semi-monthly, in
         accordance with Employer's regular payroll procedures.  If Employer
         terminates this Agreement, without Cause,  after sixty (60) months of
         its execution,  Employer  will have no severance obligation.

6.  VACATION.  During the first, second and third calendar years of employment,
    Executive shall be entitled to four weeks of vacation with pay.  During the
    fourth and fifth calendar years of continuous service and during each
    subsequent calendar year of continuous service thereafter, the Executive
    shall be entitled to six weeks vacation with pay.  In the event that the
    full vacation is not taken by Executive within 60 days of


                                         -9-

<PAGE>

    the end of any calendar year, no vacation time shall accrue for use in
    future years, without mutual agreement between the Executive and the
    Employer.

7.  RESTRICTIVE COVENANT.  Executive shall not in any manner engage in any
    business directly competitive with Employer, or solicit or attempt to
    solicit or employ any employee of the Employer, or induce or attempt to
    induce any employee, consultant or agent of the Employer to discontinue
    services for a period of one year from the date of the termination of this
    Agreement under the following circumstances:

    a.   If this Agreement is terminated for "Cause" by the Employer, pursuant
         to Section 4(c)(i) above; or

    b.   If this Agreement is terminated by Executive, pursuant to Section 4(d)
         above, for reasons other than a breach by Employer.

8.  CONFIDENTIAL INFORMATION AND DISCOVERIES.  Executive agrees that all
    information of a technical or business nature such as know-how, trade
    secrets, secret business information, plans, data, processes, techniques,
    customer information, inventions, discoveries, formulae, patterns, devices,
    etc. (the "Confidential Information"), acquired by Executive in the course
    of his  employment under this Agreement, is a valuable business property
    right of the Employer.  Executive agrees that such Confidential
    Information, whether in written, verbal or model form, shall not be
    disclosed to anyone outside the employment of Employer without the express
    authorization of Employer, unless said individual is subject to the
    Employer's


                                         -10-

<PAGE>

    non-disclosure agreement or other appropriate contractual arrangement.
    This disclosure restriction shall be limited to (a) disclosures for use in
    any market in which the Employer may then be doing business or may have
    taken any steps toward entering, and (b) for that period of time until the
    Confidential Information is generally available to the trade.

         Any and all improvements, inventions, discoveries, formulae or
    processes in any way related to Employer's business which Executive may
    conceive or make during his or her regular working hours or otherwise shall
    be the sole and exclusive property of the Employer and Executive will
    disclose the same to Employer and will, whenever requested by Employer to
    do so (either during the term of this Agreement or thereafter), execute and
    assign any and all applications, assignments and/or other instruments and
    do all things which Employer may deem necessary or appropriate in order to
    apply for, obtain, maintain, enforce and defend patents, copyrights,
    trademarks or other forms or protection, or in order to assign and convey
    or otherwise make available to Employer the sole and exclusive right, title
    and interest in and to said improvements, inventions, discoveries,
    formulae, processes, applications or patents.  After the termination of
    this Agreement, Employer will compensate Employee for his time and effort
    to comply with the terms of this paragraph 7 and the Employee may not
    decline to comply with any reasonable request.


                                         -11-

<PAGE>

         No provision in this Agreement is intended to require assignment of
    any of the Executive's rights in an invention if no equipment, supplies,
    facilities, or trade secret information of the Employer was used, and the
    invention was developed entirely on the Executive's own time; and the
    invention does not relate to the business of the Employer or to the
    Employer's actual or demonstrably anticipated research or development; and
    does not result from any work performed by the Executive for the Employer.

9.  ENFORCEMENT.  Both parties recognize that the services to be rendered under
    this Agreement by Executive are special, unique and of extraordinary
    character and that in the event of the breach by Executive of any of the
    terms and conditions of this Agreement to be performed by Executive, then
    Employer shall be entitled, if it so elects, to institute and prosecute
    proceedings in any court of competent jurisdiction, either in law or in
    equity, to obtain damages for any breach hereof, or to enforce the specific
    performance hereof by Executive or to enjoin Executive from performing acts
    prohibited above during the period herein covered, but nothing herein
    contained shall be construed to prevent such other remedy in the courts as
    Employer may elect to invoke.

10. RETURN OF DOCUMENTS.  Upon the termination of this Agreement for any
    reason, Executive shall forthwith return and deliver to Employer and shall
    not retain any original or copies of any books, papers, price lists or
    customer contacts, bids or customer lists, files, books of account,
    notebooks and other

                                         -12-

<PAGE>

    documents and data relating to the performance of services rendered by 
    Executive hereunder, which were provided to or made available to 
    Executive by Employer, all of which materials are hereby agreed to be 
    the property of the Employer.

11. MISCELLANEOUS.

    a.   NOTICES  Any notice required or permitted to be given under this
         Agreement shall be sufficient if in writing and if sent by registered
         or certified mail to Executive or Employer at the address set forth
         below their signatures at the end of this Agreement or to such other
         address as they shall notify each other in writing.

    b.   ASSIGNMENT  This Agreement shall be binding upon and inure to the
         benefit of Employer and its successors and assigns and Executive and
         his or her personal representatives, heirs, legatees and
         beneficiaries, but shall not be assignable by Executive.

    c.   APPLICABLE LAW  This Agreement shall be deemed to have been made in
         Illinois, regardless of the order in which the signatures of the
         parties shall be affixed hereto, and shall be interpreted, and the
         rights and liabilities of the parties determined, in accordance with
         the laws of the State of Illinois.  As part of the consideration for
         the execution of this Agreement, it is hereby agreed that all actions
         or proceedings  arising directly or indirectly from this Agreement
         shall be litigated only in the courts of the State of Illinois or
         United States


                                         -13-

<PAGE>

         courts located therein, and all parties to this Agreement hereby 
         consent to the jurisdiction of any local, state or federal court 
         located within the State of Illinois.

    d.   HEADINGS  Sections headings and numbers herein are included for
         convenience of reference only and this Agreement is not to be
         construed with reference thereto.  If there be any conflict between
         such numbers and headings and the text hereof, the text shall control.

    e.   SEVERABILITY  If for any reason any portion of this Agreement shall be
         held invalid or unenforceable, it is agreed that the same shall not
         affect the validity or enforceability of the remainder hereof.

    f.   ENTIRE AGREEMENT  This Agreement, and its attachments, contains the
         entire agreement of the parties with respect to its subject matter and
         supersedes all previous agreements between the parties.  No officer,
         employee or representative of Employer has any authority to make any
         representation or promise in connection with this Agreement or the
         subject matter hereof that is not contained herein, and the Employer
         represents and warrants he has not executed this Agreement in reliance
         upon any such representation or promise.  No modification of this
         Agreement shall be valid unless made in writing and signed by the
         parties hereto.

    g.   WAIVER OF BREACH  The waiver by  either party of a breach of any
         provision of this Agreement  shall not operate or be construed as a
         waiver of any subsequent breach.


                                         -14-

<PAGE>

    h.   COUNTERPARTS  This Agreement may be executed in one or more
         counterparts, each of which shall be deemed to be an original, but all
         of which together shall constitute one agreement.

IN WITNESS WHEREOF, Employer has caused this Agreement to be executed by its
duly authorized officer and its corporate seal to be affixed hereunto and
Executive has signed this Agreement all on the day and year first above written.





ACCUMED INTERNATIONAL, INC.                 Executive:




By /s/ Peter P. Gombrich                    By /s/ Norman J. Pressman
   -------------------------------             ---------------------------

Its Chairman & CEO
    ------------------------------

Address 920 N. Franklin #402                Address 119 Wildwood Road
        --------------------------                  ----------------------
        Chicago, IL 60610                           Stamford, CT 06903
        --------------------------                  ----------------------
                                                    6-13-96

SEAL



                                         -15-

<PAGE>

                                      EXHIBIT A




TITLE:  President, Cytopathology Division
        Senior Vice President, AccuMed International, Inc.



OTHER CONSIDERATION


RELOCATION:

I.  COVERAGE.  This policy covers salaried personnel transferred at the request
    of the Company and excludes those executives who transfer at their own
    request or those whose rates of pay, rules and working conditions are
    regulated by a collective bargaining agreement.

II. DEFINITIONS.
    A. Family:

    Members of the executive's immediate family who will continue to live with
    the executive at the new location.

    B.   Travel and Related Expenses:
         -    Airline fares for accommodations which are actually used and
              which conform with Company guidelines regarding air travel on
              Company business.
         -    Fares for travel by railroad, bus, taxicabs or airport limousine
              and tips.
         -    Auto rental charges, if necessary, locally for house hunting, or
              while the executive's car is in transit.
         -    Highway tolls and parking fees.
         -    Mileage allowance for a personal car used for house hunting or
              for a personal car driven to the new location by the executive or
              members of the executive's family until the day after the
              furniture is delivered to the new location.  Meals, lodging and
              tips.
         -    Charges for care of children or other members of the executive's
              family.


    C.   Home:
         The executive's principal home with no more than five acres of land,
         be it single family dwelling or a condominium, excluding property held
         for investment or any secondary residence.  At the new location
         similar provisions apply.


                                         -A1-

<PAGE>

    D.   Move:
         The provisions of this policy shall apply when the Company makes a
         permanent or indefinite change in the executive's regular or principal
         place of business.  A temporary change in principal place of business
         would be governed by the Company's policy for reimbursement of
         traveling expenses.

III.     MISCELLANEOUS RELOCATION ALLOWANCE  To help defray those expenses 
         connected with relocation which are not reimbursed under other sections
         of this policy, and to help compensate for the inconveniences which may
         result from moving, the Company will pay a miscellaneous relocation 
         allowance.  It will not be accountable.  The miscellaneous relocation 
         allowance will be one month's pay at the annual base rate the executive
         will receive immediately following the relocation, or $5,000.00, which-
         ever is less.  This allowance will be paid thirty (30) days after
         permanent move has been completed.

IV.      HOUSE HUNTING.  The Company will reimburse for the travel and related
         expenses of the executive and spouse for two trips to and from the new
         location to find a new home.  The executive will be reimbursed for 
         related expenses for up to nine calendar days.

V.       DISPOSING OF PRESENT HOME

    A.   Lease Cancellation;

         If the executive is renting present living quarters, when required,
         the Company will reimburse for reasonable expenses of canceling a
         lease, said amount not to exceed an amount equal to three (3) months
         rent.

    B.   Sale of Home:

         Current home will be placed on the market upon immediately giving
         notice to current employer, but in any event no later than July 31,
         1996.  The executive may sell his/her present home directly or through
         a broker.

         1.   Regular Sale Directly or Through Broker

         If the executive arranges to sell his/her home directly or through a
         broker the Company will pay the selling broker's commission and other
         usual closing and transfer fees within thirty (30) days from the
         closing date.


    C.   If, by December 1, 1996 the executive has used reasonable efforts, and
         has been unable to sell his home for at least the fair market value as
         determined by three independent appraisal (reference Section V., D.),
         the Company will commence to make monthly payments against


                                         -A2-

<PAGE>



         the mortgage on the home in the amount of Three Thousand and Six
         Hundred Dollars and No Cents ($3,600.00) for such period time as the
         Company determines, until the home is sold and the sale closed, or it
         may  exercise its right to "buy out" the property at its fair market
         value (as determined by the average appraisal price referenced in
         Section V. D. Upon sale of the home to a third party or to the
         Company, the Company will be paid or credited in an amount equal to
         the mortgage principle reductions resulting from the $3,600.00
         payments made by the Company.

    D.   Loss on Sale of Home

         To be eligible for an allowance under this provision, three appraisals
         through an independent certified appraisers must be obtained.  Cost of
         the appraisals will be paid by the Company.  Fair market value will be
         based upon an average of the three appraisals.  If upon sale of the
         present home a loss is experienced, the Company will reimburse the
         executive. A loss will occur if the sale price of the home is less
         than the average of the three appraisals.  The above notwithstanding,
         the Executive will not sell his home at a loss without prior approval
         of the Company.

         Upon sale of the home any loss resulting from personal neglect or
         other failure on the part of the executive to maintain such home
         properly will not qualify for reimbursement under this section of the
         policy.

         THIS PROTECTION AGAINST LOSS DOES NOT APPLY TO A MOBILE HOME.

VI. ACQUIRING A NEW HOME


    A.   Lease Acquisition:

         If the executive leases living quarters at their new location, the
         Company will pay the expenses, such as broker's fees, required to
         obtain a lease.  Charges for advance rental, or security or cleaning
         deposits will not be reimbursed.

    B.   In the event that by September 30, 1996 the Executive, using
         reasonable efforts, has been unable to sell his home, the company will
         arrange interim financing for the amount of the down payment necessary
         for the executive to purchase housing in the Chicago metropolitan
         area.

         Such financing will be secured by means of the Company lending the
         down payment to the Executive at the then lowest Applicable Federal
         Interest Rate, or by co-signing a note with the Executive.  The
         property to be purchased


                                         -A3-

<PAGE>

         will be collateral for said note.  The executive will be responsible
         for the monthly payments (to include principle, interest, taxes and
         any other usual and customary charges) and all charges necessary to
         maintain the property.

     C.  Reimbursable Expenses:

         The Company will pay the following reasonable costs normally paid by
         the buyer in connection with the purchase of a new home:

         -    Mortgage placement fees, with a maximum of one and one half (1
              1/2) points.
         -    Appraisal fees required by lending institution.
         -    Title insurance and examination.
         -    Legal expenses, if required.
         -    Engineering or structural inspection reports.

VII. STORAGE OF HOUSEHOLD GOODS.  The Company will select a reliable mover and
     pay for the following expenses in connection with the transportation
     of household goods and personal effect (excluding trees, livestock, 
     valuable papers, negotiable securities, money and dangerous or inflammable
     articles) to the new location.

     -    Packing
     -    Transportation
     -    Unpacking
     -    Insurance, in the amounts customarily provided by carriers.

     The Company will make arrangements for movement to the new location of one
     automobile registered in the name of any member of the executive's family
     who will reside at the new location, and will pay the corresponding
     expenses for the insurance and transportation of such vehicles.  Boats,
     trailers, recreational, or other bulky vehicles are excluded.  If household
     goods have been moved and immediate possession of the new home cannot be
     obtained, the Company will pay for the storage of household goods for a
     period not exceeding . one hundred twenty days. 

VIII.     TEMPORARY LIVING AND TRAVEL EXPENSES.

     A.   Temporary Living - Former Location

          If the executive must vacate his/her present home and must defer
          starting travel to the new location, the Company will pay the
          reasonable costs of meals and lodging for the executive and his/her
          family at the former location for a period of up to seven calendar
          days.


                                         -A4-

<PAGE>

    B.   Travel to New Location

         The Company will pay the travel and related expenses of the executive
         and his/her family to the new location by the most direct route.
         Included as travel expenses are any allowable expenses for the day
         immediately preceding the day of departure from the former location
         and allowable expenses for the day of arrival at the new location.

    C.   Temporary Living - New Location

         1.   Executive only:

         If the executive begins work at the new location before moving, the
         Company will arrange for and pay the reasonable cost of meals and
         lodging at the new location for up to ninety days, but not longer than
         two days after the arrival of furniture and household goods at the new
         home.  Should special circumstances require a temporary living
         allowance for the Executive for more than ninety days, the Executive
         will discuss the issue with the Chairman/CEO and a reasonable
         accommodation will be made.

         2.   Family:

         Normally, it is expected that the executive's family will remain at
         the former location until housing is ready at the new location.
         However, if they must vacate the former location before that time, the
         Company will arrange for and pay the reasonable cost of meals and
         lodging at the new location for up to sixty days, but not longer than
         two days after the arrival of the furniture and household goods at the
         new home.

IX. NO SUBSTITUTION OF ALLOWANCES.  The allowances stated in this policy are
    for specific purposes.  An expense which exceeds the limits of one
    allowance cannot be claimed under another allowance. An expense for which
    no allowance is provided cannot be substituted for an allowed expense.

X.  TIME LIMITATIONS.  Except for the benefits provided under Section VII of
    this policy, no benefits will be granted for any expense incurred more than
    one year from the effective date of transfer to the new location.

XI. TAX ALLOWANCE.  Reimbursement of certain relocation expenses is considered
    to be additional compensation to the executive for federal income tax
    purposes.  Therefore, the Company is required to withhold income tax on
    such reimbursement to the extent that it exceeds the amount for which a
    deduction can be taken by the executive on his/her individual income tax
    return.  To minimize the tax burden on the executive, the Company will,
    with respect to the nondeductible portion of the


                                         -A5-

<PAGE>

         reimbursement, provide an additional amount as a tax allowance in
         accordance with the attached Tax Allowance Schedule.  This allowance
         will be paid to the Government as additional Federal Income Tax 
         withholding for the account of the executive.  It will be included on
         the executive's W-2 as taxable compensation.

XII.     MOVING EXPENSE REPORTING.  Claims for reimbursement of moving expenses
         must be submitted to the Company within 90 days after household goods 
         are delivered to the new location.  Claims should be submitted on the
         Company Expense Reporting Form and referred to concerning reporting
         moving expenses.

         Normally, this reporting should be completed at one time. The claim 
         must show all allowable moving expenses, and any temporary advances 
         that the executive has received for moving expenses.  Supporting 
         documents must be attached to the claim.

         After necessary approvals of the claim, the executive will receive
         reimbursement for any balance due, plus a statement of reimbursement of
         relocation expenses, showing the treatment of the various expense
         categories for the standpoint of income tax make-up and withholding.  
         This statement shows only the items reimbursed by the Company.  It is 
         possible to have other moving expenses which quality as a deduction 
         which are not reimbursable by the Company.

         If temporary cash advances from the Company have exceeded the amount of
         reimbursable expenses, a check payable to the Company for any balance 
         due the Company must accompany the claim for reimbursement of expenses.


                                         -A6-

<PAGE>

                                      EXHIBIT B


                               Alamar Biosciences, Inc.
                                1995 Stock Option Plan

                                   [To be attached]

<PAGE>



                           ADDENDUM TO EMPLOYMENT AGREEMENT


WHEREAS, AccuMed International, Inc. (hereinafter known as the Employer) and
Norman J. Pressman (hereinafter known as the Executive) entered into an
Employment Agreement on the 13th day of June, 1996.

WHEREAS the Employer and the Executive warrant and acknowledge that it would be
in their mutual best interests to modify said agreement as it pertains to
Section 2.c (Compensation and Benefits - Stock Options) and Section 2.d (Hiring
Bonus) as follows:

2.c.STOCK OPTIONS Paragraph Two shall be modified to read:
    The price of the first grant of 50,000 options, which is exercisable on
    July 8, 1996, the date the Executive commences employment, will be set at
    100% of Fair Market Value ("FMV" being the NASDAQ closing price of the
    stock) of $6.25 a share of the common Stock of the Employer, and may be
    exercisable at not less than the grant price.  The price of the remaining
    200,000 options will be set at 100% of FMV ($6.25 a share) on July 8, 1996,
    the date the Executive commences employment.
    ALL OTHER TERMS AND CONDITIONS IN SECTION 2.c. SHALL REMAIN THE SAME.


2.d.HIRING BONUS First sentence of the Paragraph shall be modified to read:
    Employer shall grant the Executive 25,000 shares of the Employer's Common
    Stock at the FMV of $6.25 on the date the Executive commences employment
    (July 8, 1996).  Said shares shall be delivered not later than thirty (30)
    days after Executive commences active employment.
    ALL OTHER TERMS AND CONDITIONS IN SECTION 2.d. SHALL REMAIN THE SAME.


The parties have read, understand and by virtue of their signatures below,
warrant their agreement with the modifications to the Agreement.   This Addendum
shall be incorporated into and made part of the Employment Agreement attached
herein.



ACCUMED INTERNATIONAL, INC.            EXECUTIVE


/s/ Peter P. Gombrich                    /s/ Norman J. Pressman
- ----------------------------------      ---------------------------
Peter P. Gombrich, Chairman & CEO       Norman J. Pressman


 7/16/96                                 7/16/96
- --------------------------------        -------------------------
Date                                    Date


<PAGE>

                   RESEARCH AND DEVELOPMENT SERVICES AGREEMENT

          THIS AGREEMENT is made effective as of the 15th day of March, 1996 by
and between AccuMed International, Inc., a corporation organized under the laws
of the State of Delaware, USA (hereinafter "AccuMed") , with its principal place
of business located at 920 N. Franklin Street, Chicago, Illinois 60610, and
Radco Ventures, Inc., a corporation under the laws of Delaware USA (hereinafter
"RADCO"), with its principal place of business located at 920 N. Franklin
Street, Chicago, Illinois 60610.

                                  INTRODUCTION

          A.   AccuMed is in the business of designing, developing,
manufacturing and marketing IN VITRO diagnostic products for the clinical,
veterinary, pharmaceutical and hospital laboratory market, and RADCO is in the
business of designing, developing, and manufacturing microbiological instruments
and testing products.


          B.   AccuMed is acknowledged to possess valuable technology and has
significant expertise and confidential know-how in research and development of
microbiology IN VITRO diagnostic testing products and the engineering of
laboratory instruments.


          C.   RADCO desires to contract microbiology, engineering and technical
services from AccuMed on the terms and conditions set forth in this agreement
for the purpose of research and potential development of new microbiological and
instrument testing products as agreed upon by the parties.


          NOW, THEREFORE, in consideration of the terms and conditions and
mutual agreements contained herein, AccuMed and RADCO agree as follows:

          1.   TERM.

               The initial term of this Agreement shall extend from the date
hereof until March 31, 1999.  Either party may terminate this Agreement at any
time on ninety (90) days notice to the other.  Upon termination, the RADCO Board
of Directors (as hereinafter defined) shall determine the rights and obligations
of each party with respect to any uncompleted projects or other open matters.
In any event, within thirty (30) days after termination, each party shall
promptly forward to the other party all moneys acknowledged to be owing to each
other with respect to any matter undertaken pursuant to this Agreement.  In the
event the RADCO Board of Directors shall be unable to agree on the parties'
rights and obligations after termination within ninety (90) days after such
termination, the parties shall submit their dispute to binding arbitration in
accordance with Section 12 of this Agreement.

                                        1

<PAGE>

          2.   RADCO BOARD OF DIRECTORS.

               (a)  AccuMed shall designate two directors and RADCO shall
designate three directors, collectively to act on the direction and activities
with respect to the evaluation of research and development projects, allocation
of resources, allocation of expenses, rights upon development and other matters
as described elsewhere herein with respect to projects undertaken pursuant to
this Agreement.  Such directors, who shall be hereinafter referred to as the
"RADCO Board of Directors," will meet as necessary. Meetings may be conducted in
person or via conference telephone call.

               (b)  The members of the RADCO Board of Directors will be
empowered by AccuMed's and RADCO's respective Boards of Directors to enter into
binding agreements and other arrangements on behalf of AccuMed and RADCO,
respectively, within the scope of and for the purposes set forth in this
Agreement, PROVIDED, that the members designated by AccuMed shall have no
authority to bind RADCO and the members designated by RADCO shall have no
authority to bind AccuMed, and PROVIDED, FURTHER, that members may not bind
their respective companies with respect to matters that, in the opinion and
discretion of such members, require the consent or approval of such company's
Board of Directors.  All decisions of the RADCO Board of Directors shall become
binding obligations of RADCO and/or AccuMed only upon the execution by each
party of a written memorandum memorializing such decisions and each of AccuMed
and RADCO hereby agrees to be bound to any memorandum executed by its
representative.

               (c)  AccuMed may, at any time, remove and/or replace any AccuMed
designated representative, and RADCO may, at any time, remove and/or replace any
RADCO designated representative, of the RADCO Board of Directors, so long as at
all times, each party shall have at least one member on the RADCO Board of
Directors.

               (d)  The RADCO Board of Directors will appoint a President to
carry out the direction of the RADCO Board of Directors and the operations of
RADCO and the President will report to the RADCO Board of Directors.

          3.   RESEARCH AND DEVELOPMENT COLLABORATION.

               (a)  AccuMed and RADCO hereby agree to act in concert with
respect to the research and development activity undertaken for the purpose of
developing a new integrated technology pursuant to this Agreement (the
"Research") and as defined on Exhibit A, as modified from time to time.  The
RADCO Board of Directors shall determine the scope, timing, definition and
termination of any Research projects.  During the term of this Agreement,
neither RADCO nor AccuMed shall unilaterally pursue any research and development
activity, nor shall they collaborate on research with any third party, in
connection with or related to any Research then being conducted under this
Agreement, without the prior specific written consent of the other party.

                                        2

<PAGE>

               (b)  Pursuant to its authority under this Agreement, the RADCO
Board of Directors shall determine the place, schedule, management and other
particulars with regards to any Research, as defined on Exhibit A. AccuMed and
RADCO each agree to place at the disposal of any project the resources
(including, without limitation, personnel, facilities, expertise and know-how)
determined by the RADCO Board of Directors to be necessary and appropriate for
the successful completion of the Research and appropriate compensation to
AccuMed per Exhibit A. The RADCO Board of Directors may, in its discretion,
agree to abandon and discontinue any Research if it determines that such
Research is not in the best interests of the parties.  Upon termination of any
Research, the RADCO Board of Directors shall determine any and all issues
relating to allocation of expenses, reimbursement, ownership of any developed
property, and the like, pursuant to Termination in Section 1.

               (c)  AccuMed shall provide laboratory services, scientific,
marketing, and regulatory expertise under contract and as part of this Agreement
to RADCO to undertake the Research, the details of such contracted services as
defined on Exhibit A.


          4.   USE OF TECHNOLOGY

               (a)  AccuMed hereby grants to RADCO during the term of this
Agreement the non-exclusive use of AccuMed's [
                     *                                          ] including any
expertise and confidential know-how that are trade secrets of AccuMed
("Technology"), solely for the purpose of conducting the Research. RADCO agrees
and acknowledges that, notwithstanding any other provision of this Agreement,
this grant does not provide RADCO any rights to manufacture or sell products
containing the AccuMed technologies or to use the AccuMed Technology for any
purpose other than the Research. RADCO shall not disclose to any third party,
without the consent of AccuMed, any trade secrets or other AccuMed Technology.

               (b)  AccuMed agrees to disclose to RADCO all AccuMed technologies
necessary or appropriate to be disclosed hereunder with respect to any Research.
The grant contained herein does not grant to the parties any other rights in and
to the other party's technology except as specifically provided herein, and each
party disclaims any other rights in or ownership of any of the other party's
technology by virtue of this Agreement.


          5.   REPORTING REQUIREMENTS.

               (a)  RADCO shall keep and maintain adequate books, records and
files to furnish complete and accurate information to AccuMed and to the RADCO
Board of Directors regarding all aspects of the Research.  Each party shall
document and specify all aspects of any technology or products developed under
this Agreement, and shall retain such items for a period of three (3) years
after termination of this Agreement.




*PORTIONS OF THIS EXHIBIT HAVE BEEN OMITTED AND FILED SEPARATELY WITH THE 
SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A CONFIDENTIAL TREATMENT REQUEST.

                                        3

<PAGE>

               (b)  The RADCO President or RADCO Board of Directors will, from
time to time as requested by AccuMed or RADCO, and no less often than quarterly
during the term of this Agreement, provide to AccuMed and RADCO a detailed
written report specifying all documents, drawings, specifications, programs, and
all other matters relating to the Research including, without limitation, a
description of any patentable inventions and information.


          6.   CONFIDENTIALITY.

               (a)  AccuMed and RADCO each agree to take all necessary and
proper action to assure that information related to the Research, the AccuMed
Technology and any resulting technology or products (the "Confidential
Information") is kept confidential.  Neither AccuMed nor RADCO will disclose or
permit the disclosure of any Confidential Information to any third person or
otherwise use any Confidential Information for it's own benefit except as
necessary to perform or manage performance of the Research (including such
disclosure as may be required to be made to employees or agents of the parties
under protection of nondisclosure agreements with such employees or agents as
required by Section 6(c) hereof) and any disclosure required by applicable law.

               (b)  AccuMed and RADCO shall each establish a reasonable security
procedure to prevent unauthorized access to the Confidential Information and
shall maintain a permanent list identifying all persons having access to the
Confidential Information, which shall be available for inspection by either
party upon reasonable notice.  AccuMed and RADCO shall each appropriately
identify and mark all reproductions, copies, extracts or the like of any
documents containing Confidential Information as "Confidential" before
distributing the same to its employees, agents or independent contractors.  In
addition, the parties will keep confidential at all times any nonpublic
information (including business and financial matters) it may acquire concerning
the other party.

               (c)  AccuMed and RADCO each further agree that any employees,
agents or independent contractors who are hired or retained by the parties to
perform or manage performance of any of any research and development undertaken
pursuant to this Agreement shall be required to sign agreements whereby such
employees, agents and independent contractors agree to hold in confidence any
Confidential Information and any nonpublic information about the parties of
which they become aware during the course of their duties as employees, agents
or independent contractors.

               (d)  The obligations imposed on the parties by Section 6 of this
Agreement to protect and not to disclose Confidential Information shall continue
during the term of this Agreement and thereafter, except with respect to such
information that sooner becomes lawfully within the public domain.  Upon
termination of this Agreement, the parties shall return to each other all
reproductions, copies, extracts or the like containing any Confidential
Information.

                                        4

<PAGE>

               (e)  AccuMed and RADCO shall indemnify and hold each other
harmless with respect to any damage, claim, injury, loss or liability occasioned
by either party's violation of, or failure to comply with, any provision of this
Section 6.

               (f)  RADCO understands and acknowledges that AccuMed is obligated
to disclose to the public material information regarding AccuMed at various
times under the requirements of the US Securities Exchange Act of 1934, as
amended (the "1934 Act") and the rules applying to companies with securities
listed on the National Association of Securities Dealers Automated Quotation
System ("NASDAQ").  Notwithstanding any other provision of this Section 6, any
disclosure by AccuMed required to be made by the 1934 Act, any regulations
promulgated thereunder, the US Securities and Exchange Commission, NASDAQ or any
other securities exchange on which AccuMed securities may be listed shall not be
construed as a violation of the terms of this Agreement.


          7.   OWNERSHIP OF RESULTING TECHNOLOGY.

               Except as otherwise provided, ownership of, and license rights,
if any, to all of the new technology resulting from the Research, including,
without limitation, any design features, processes, manufacturing procedures,
test procedures, parts information, patent rights and applications, engineering
and manufacturing information, schematics, lay-out drawings, assembly drawings,
programs, pamphlets, books, reports, drawings, or other documentation,
trademarks and copyrights, specifications, patentable inventions and
information, and improvements or discoveries developed during the Research
(collectively, the "Resulting Technology"), shall be solely owned by RADCO.


          8.   DEFAULT.

               If any of the following events of default occur at any time
during the term of this Agreement, AccuMed or RADCO, upon written notice to the
other, may terminate this Agreement:

               (a)  RADCO or AccuMed defaults in the performance or compliance
with any provision of this Agreement required to be performed by them, and such
default has not been remedied within thirty (30) days after the date the non-
defaulting party gives written notice thereof to the defaulting party; or

               (b)  (i) A receiver is appointed or applied for with respect to
AccuMed or RADCO; (ii) a general assignment of its assets is made by AccuMed or
RADCO for the benefit of creditors; (iii) proceedings for liquidation of AccuMed
or RADCO are commenced pursuant to an agreement of composition of its creditors;
(iv) any proceeding involving RADCO or AccuMed is voluntarily commenced by
either of them under any bankruptcy, reorganization, insolvency, readjustment of
debt, dissolution or liquidation law or statute of the United States, any state,
any other country or any political subdivision thereof; or (v) any such
proceedings are involuntarily instituted against RADCO or AccuMed, and such
party by any action indicates its approval thereof or consent thereto or
acquiescence therein; PROVIDED that

                                        5

<PAGE>

no such default shall become effective with respect to any event described in
clauses (i) through (v) of this subparagraph (b) if such event or proceeding is
dismissed, withdrawn or otherwise removed within thirty (30) days of the date of
initiation or occurrence thereof.



          9.   INFRINGEMENT.

               To AccuMed's knowledge, the AccuMed Technology does not infringe
upon or violate any patent, trademark or other intellectual property right.
AccuMed shall defend or settle any claim, action, suit or proceeding brought
against RADCO with respect to alleged infringement or violation by AccuMed of
any patent or trademark of AccuMed.  The cost of such defense shall be borne by
AccuMed. AccuMed shall indemnify and hold RADCO harmless from and against any
actions, claims, suits, proceedings or other obligations incurred by RADCO in
connection with any alleged infringement or violation by AccuMed of any
intellectual property right.


          10.  GOVERNING LAW; ARBITRATION

          This Agreement shall be governed by and construed and governed in all
aspects by the substantive laws of the State of Delaware, USA. 

          All disputes arising out of or in connection with this Agreement, any
Research or any aspects of any Resulting Technology, which cannot be settled 
amicably between AccuMed and the RADCO Board of Directors, including disputes 
on any aspects of the arrangements contemplated by this Agreement to be 
determined by the RADCO Board of Directors, shall be resolved, to the exclusion
of the ordinary courts by a three-person Arbitral Tribunal in accordance with 
the rules of the American Arbitration Association.

          The Arbitral Tribunal shall have its seat in Chicago, Illinois, USA
and the proceedings shall be conducted in the English language.  Each party
shall nominate an arbitrator.  The Chairman of the Arbitral Tribunal shall be
appointed by, and in accordance with the rules of, the American Arbitration
Association.

          The determination of the Arbitral Tribunal as to any matter placed
before it shall be final and binding upon the parties, shall be enforceable at
law or equity by any court having jurisdiction and shall not be appealable.
Each party will bear the expense of the arbitrator it selects, and the expenses
of the Chairman of the Arbitral Tribunal shall be borne by the parties equally.

          11.  WAIVER OF PERFORMANCE.

          A failure of either party hereto at any time to require performance by
the other party hereto of any provision hereof required to be performed by such
other party will in no way affect the right of the first party to require such
performance at any time thereafter.  The waiver of any provision hereof will in
no way be construed as a waiver of any succeeding breach of such provision or a
waiver of the provision itself.

                                        6

<PAGE>

          12.  RELATIONSHIP OF THE PARTIES.

               Neither party hereto shall have any express or implied right or
authority to assume or create any obligations on behalf of or in the name of the
other party or to bind the other party to any contract, agreement or undertaking
with any third party.  No partnership or joint venture is created hereby.  The
parties are independent contractors, and not employees.  The meetings and
proceedings of the RADCO Board of Directors shall be deemed to be the
negotiations and business discussions of independent contractors.


          13.  MISCELLANEOUS.

               (a)  Neither this Agreement nor any right here under may be
assigned by either party nor may they delegate any of their duties here under,
without the express prior written consent of the other party.

               (b)  This Agreement will be binding upon and inure to the benefit
of the successors and permitted assigns of the respective parties hereto.

               (c)  This Agreement and the other documents delivered in
connection with the transactions contemplated hereby and thereby constitute the
full and entire understanding and agreement of the parties hereto with regard to
the subjects hereof and thereof.

               (d)  The titles of the sections of this Agreement are for
convenience of reference only and are not to be considered in construing the
Agreement.

               (e)  This Agreement may not be amended except by a written
instrument signed by all the parties hereto.

               (f)  In case any provision of this Agreement shall be invalid,
void, illegal, or unenforceable, the remaining provisions hereof nevertheless
will continue in full force and effect without being impaired or invalidated in
any way.

               (g)  Nothing in this Agreement, expressed or implied, is intended
or shall be construed to confer upon or give to any person, corporation or other
legal entity, other than the parties to this Agreement any rights, remedies or
other benefits under or by reason of this Agreement.

                                        7

<PAGE>

          IN WITNESS WHEREOF, the parties hereto have caused this Agreement to
be duly executed by their duly authorized representatives as of the date first
above written.


RADCO VENTURES, INC                          ACCUMED INTERNATIONAL, INC.


/s/Kenneth D. Miller                         /s/Peter P. Gombrich
- ----------------------------------           --------------------------------
By: Kenneth D. Miller                        By: Peter P. Gombrich
Title: Acting President                      Title: Chairman/CEO

                                        8

<PAGE>

                                    EXHIBIT A


RADCO DEVELOPMENT PLAN
        The general objective is for Accumed and RADCO to act in concert with
        respect to the research and development activity undertaken for the
        purpose of developing a new integrated technology pursuant.  The RADCO
        Board of Directors shall determine the scope, timing, definition and
        termination of any Research projects.

The development plan has been structured around specific time and cost saving
strategies:

     1. RADCO will develop product specifications by evaluating individual
        elements of the product line and utilizing effective testing methods.

     2. Clearly defined milestones will reduce risk and save time and money
        during the development process.

     3. RADCO will contract with AccuMed and others for manufacturing processes
        development, instrument engineering and development, and microbiology
        development.

A maximum development timetable of two years has been set, requiring maximum
utilization of previously validated solutions and procedures wherever possible.
The work is organized into four phases, with each phase leveraging Accumed's
instrumentation, imaging and microbiology software expertise as well as
utilization of dedicated and contracted staffing throughout the duration of the
work.


PHASE ONE: FEASIBILITY                              3 MONTHS

Form team of senior specialists including those presently on staff at Accumed
microbiologists, programmers, engineers) to document specifications and
demonstrate feasibility.

1.   Complete set of specifications for the autoinoculator, fully automated
     reading instrument and disposable device;

2.   Feasibility prototype device constructed;

3.   Demonstration that microbiological methods for identification and
     susceptibility will give rapid results in such device;

4.   Assessment of manufacture ability of the proposed device, i.e., can it be
     made in volume at low cost;

5.   Inoculator feasibility prototype constructed; and

6.   Instrument feasibility prototype constructed.


Cost:

[            *                  ]  per month for research and development,
engineering, marketing research and project management services provided by
AccuMed.  AccuMed will bill RADCO separately for any laboratory supplies used
for the Research.  Other engineering prototype development and services other
than Accumed will be paid directly by RADCO.

OUTCOME:  Explicit final development plan with feasibility demonstrated,
prototyping plan in place, deadlines and milestones set and demonstrable
feasibility prototype built.




*PORTIONS OF THIS EXHIBIT HAVE BEEN OMITTED AND FILED SEPARATELY WITH THE 
SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A CONFIDENTIAL TREATMENT REQUEST.

                                        9

<PAGE>

PHASE TWO: PROTOTYPING                              6 MONTHS

Expand development team to eight with addition of two microbiologists and one
instrument engineer to focus on prototyping instrumentation and software for
instrument support, microbiology for new system, and manufacture of the product.


1.   Extensive formulations work and prototype assembly and testing for
     susceptibility

2.   Formal prototyping and design of instrumentation

3.   Device prototypes, full instrument breadboard, prototyping and instrument
     modifications to support microbiology work.

4.   Hardware and software engineering for instrumentation.

Cost:

[            *                 ] per month for research and development,
engineering, regulatory consulting, marketing research and project management
services provided by AccuMed.  AccuMed will bill RADCO separately for any
laboratory supplies used for the Research.  Other engineering prototype
development and services other than AccuMed will be paid directly by RADCO.

OUTCOME:     Engineered prototypes of instrumentation, panels and software to
adequately represent final product for purposes of FDA Clinical Trials


PHASE THREE: REDUCTION TO PRACTICE                  6 MONTHS

Expand team with outside third party contractors to assist with data collection
for Clinical Trial preparation and performance of trials for instrumentation,
panels and software.

1.   Extensive data collection and analysis for rapid and overnight testing for
     susceptibility;

2.   Device prototypes, full instrument breadboard prototyping and instrument
     construction for support of microbiology work;

3.   Prototyping software and hardware work; and

4.   Clinical trials at three sites for approximately 60 antibiotics, 3
     organisms groups, two identification groups and the instrumentation.

COST:

[              *                       ] per month for research and development,
engineering, regulatory consulting, laboratory work, data collection and project
management services provided by AccuMed.  AccuMed will bill RADCO separately for
any laboratory supplies used for the Research.  Other engineering prototype
development and services other than AccuMed will be paid directly by RADCO.

OUTCOME:     Data collected and ready for preparation for FDA submission; work
on production lot of instruments underway.




*PORTIONS OF THIS EXHIBIT HAVE BEEN OMITTED AND FILED SEPARATELY WITH THE 
SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A CONFIDENTIAL TREATMENT REQUEST.

                                       10

<PAGE>

PHASE FOUR: FDA SUBMISSION                          9 MONTHS

Team reduced to core group of two to prepare FDA submissions and respond to FDA
issues; transfer of technology to manufacturing.

1.   Prepare, submit and support submission of PMA to the US FDA;

2.   Develop manufacturing and GMP documentation; and

3.   Develop user operations and service manuals

COST:
[             *                 ] per month for creating the FDA documentation
for PMA submission, GMP and manufacturing documentation and user manuals. Other
manufacturing prototype and assembly development and services other than Accumed
will be paid directly by RADCO.

OUTCOME:  FDA submission and clearance; transfer of technology to manufacturing.




*PORTIONS OF THIS EXHIBIT HAVE BEEN OMITTED AND FILED SEPARATELY WITH THE 
SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A CONFIDENTIAL TREATMENT REQUEST.

                                        11

<PAGE>

R-1


Rider to that lease dated July 13, 1994 amended with Rider R-7 and Rider R-20,
between The Lumber Co., Landlord, and AccuMed Inc., Tenant.

Landlord will Lease to Tenant suite 501 consisting of 700 square feet, suite 502
consisting of 740 square feet, suite 503 consisting of 868 square feet, suite
401 consisting of 1980 square feet, and suite 406 consisting of 800 square feet
all located at 900 N. Franklin St. Chicago, IL 60610 and hereby known as
expansion space.  This leasing option is granted pursuant to the agreed to Terms
and Conditions as set forth in the Letter of Intent, dated May 15, 1996, and
executed by both parties.  The Letter of Intent (Exhibit A) is attached to and
herein made part of this lease agreement.  The expansion space will be leased
under the same terms and conditions as the original lease.  Rent for the
expansion space will be at the same per square foot rate as Tenant pays for
suite 402 at 920 N. Franklin St. Chicago, IL 60610. The term of lease for the
expansion space will commence July 1, 1996.

Landlord hereby grants a Right of First Refusal for space at 900-920 N.
Franklin.  The terms of this right are contained in Rider R-12a.

Landlord will allow Tenant to improve the expansion space based on drawings
submitted to Landlord by Tenant and signed by both parties.  All costs and
supervision of said improvements to the expansion space will be the
responsibility of Tenant.

Tenant hereby extends the lease of all Premises, additional space, and expansion
space for an additional five (5) years, after the expiration of the original
lease, under the same terms and conditions as the original lease.  The
Expiration date of this extended lease is September 30, 2004.




/s/ John J. Burns                            /s/ Peter P. Gombrich
- ----------------------------------           --------------------------------
Landlord                                     Tenant
Agent for The Lumber Company
- ----------------------------------           --------------------------------
Landlord                                     Tenant

  5/30/96
- ----------------------------------           --------------------------------
Date                                         Date


<PAGE>

            COLLABORATION AGREEMENT AND WORLDWIDE EXCLUSIVE LICENSE

    AGREEMENT dated March 22, 1994, by and between Alamar Biosciences, Inc., a
California corporation with offices at 4110 North Freeway Boulevard, Sacramento,
California 95834 ("Alamar"), and G&G Dispensing, Inc., a Maryland corporation
with offices at 1005 York Lane, Annapolis, Maryland 21403 ("G&G").

    WHEREAS, the parties wish to develop, license, manufacture and market the
G&G invention for liquid transfer for the specific application of microorganism
identification and minimum inhibitory concentration susceptibility ("ID/MIC")
testing in a microwell format regardless of number of wells, columns, rows or
volume of the fluid dispensed; and

    WHEREAS, Alamar wishes to secure the worldwide exclusive rights to make,
have made, use and sell the Product and G&G wishes to grant a license to Alamar
to do so, on the terms and conditions set forth herein;

    NOW, THEREFORE, the parties hereby agree as follows:


1.  DEFINITIONS

    The following words or phrases shall, in this Agreement, have the meanings
indicated below:

    1.1   "Actuator" shall mean a device which is used with the Disposable to
create and discharge a vacuum.

    1.2   "Affiliate" of a party shall mean a corporation or other business
entity controlled by, controlling or under common control with, such party.  For
this purpose, control of a corporation or other business entity shall mean
direct or indirect beneficial ownership of fifty percent (50%) or more of the
voting interest in, or a fifty percent (50%) or greater interest in the equity
of such corporation or other business entity.

    1.2a  "Alamar Application" shall mean the specific application of
microorganism ID/MIC testing in a microwell format regardless of number of
wells, columns, rows or volume of the fluid dispensed and shall include an
Actuator and one or more Disposables (defined below).

    1.3   "Disposable" shall mean a disposable pipettor device.


<PAGE>

    1.4   "First Commercial Sale" shall mean the date on which Alamar first
transfers title of a Product to a party that is not an Affiliate of Alamar for
monetary or some value equivalent (E.G., a barter arrangement) consideration.

    1.5   "G&G Technology" shall mean proprietary or confidential technology,
know-how, trade secrets, data and results, currently existing and owned by G&G
or developed pursuant to this Agreement and becoming the property of G&G
pursuant to Section 3.1 of this Agreement, in each case necessary or appropriate
for the development of the Product.

    1.6   "G&G Patent Rights" shall mean all patent applications and patents,
whether United States or foreign, now or hereafter during the term of this
Agreement owned or controlled by G&G and any continuations-in-part, divisions,
reissues, extensions and foreign counterparts of any such patent applications or
patents, which Alamar would infringe by making, having made, using or selling
the Product unless licensed by this Agreement.

    1.7   "Person" shall mean an individual, a corporation, a partnership, an
unincorporated association, a joint-stock company, a trust or a government or
political subdivision thereof.

    1.8   "Phase I" shall mean when the parties have reached Agreement on a
design concept and specifications for the Product and so indicate in a writing,
an example of which is attached as Exhibit A.

    1.9   "Phase II" shall mean when the parties have reached agreement on a
prototype design for the Actuator and Disposable and so indicate in a writing,
an example of which is attached as Exhibit A.

    1.10  "Phase III" shall mean when the parties agree that the tooling is
approved for production of the Disposable and a functional Actuator that meets
specifications is delivered and so indicate in a writing, an example of which is
attached as Exhibit A.

    1.11  "Phase IV" shall mean the period from the end of Phase III to and
including the date of the First Commercial Sale of the Product.

    1.12  "Product" shall mean the G&G invention for liquid transfer for the
Alamar Application.

    1.13  "Quarter" shall mean the calendar quarters (3-month periods)
commencing January 1st, April 1st, July 1st and October 1st, respectively.


                                          2

<PAGE>

2.  COLLABORATIVE EFFORT AND OWNERSHIP OF TECHNOLOGY

    2.1   OVERALL JOINT EFFORT.  Alamar and G&G agree to collaborate on the
development of the Product.  The parties shall be under no obligation to perform
specific duties other than those set forth below; however, each party agrees to
provide advice and information to the other to the extent reasonably requested
and reasonably appropriate to the development of the Product.

    2.2   DUTIES OF G&G.  G&G shall be responsible for (i) the concept, final
design and prototype of the Actuator and (ii) the concept and final design of
the Disposable.  Part of G&G's costs in this effort will be paid for by Alamar
in accordance with Section 5.2 below.  G&G shall inform Alamar at regular
intervals, and at such times as may be reasonably requested by Alamar, of G&G's
progress in accomplishing the tasks set forth in this Section 2.2. If G&G is
unable to accomplish Phase I, Phase II and Phase III by nine months from the
date of execution of this Agreement, Alamar may, at its option, perform these
functions as well.  If Alamar decides to do so then it will notify G&G of its
decision and from that day forward Alamar's out-of-pocket expenses for
accomplishing what G&G has not been able to accomplish of Phase I, Phase II and
Phase III will be credited against any future royalties that Alamar may owe to
G&G under this Agreement.

    2.3   DUTIES OF ALAMAR.  Alamar will be responsible for the production
tooling of the Disposable for the Alamar Application. Once the final design is
available Alamar will seek one or two additional quotations for the production
of the Disposable.  Alamar shall be responsible for the production tooling of
the Actuator for the Alamar Application.

    2.4   OWNERSHIP OF TECHNOLOGY EMBODIED IN PRODUCT.  Except as otherwise
provided below in this paragraph, all technology developed during the course of
the parties' collaboration under this Agreement (whether developed solely by
G&G, solely by Alamar or jointly) relating to the Actuator, Disposable or the
Product shall automatically, and without further action of the parties, become
and be the sole property of G&G and become G&G Technology or G&G Patent Rights,
PROVIDED, HOWEVER, that any information or technology discovered or developed
during the course of the parties collaboration under this Agreement relating to
Alamar's proprietary technology for microorganism ID/MIC testing in a microwell
format shall automatically, and without further action of the parties, become
and be the sole property of Alamar.  The parties will, to the extent necessary
or appropriate, execute all documents and otherwise cooperate with each other to
perfect the respective parties' interests in the results of the collaboration.

    2.5   IMPROVEMENTS AND MODIFICATIONS.  Any inventions, modifications,
discoveries, and developments, whether or not patentable (collectively, the
"Improvements"), developed or


                                          3

<PAGE>

acquired by G&G from whatever source, relating to the Actuator or the Disposable
as used in the Product, shall become part of the G&G Technology or the G&G
Patent Rights and shall be automatically licensed to Alamar hereunder.  G&G
shall promptly notify Alamar of the development or acquisition of any
Improvements.

    2.6   ALAMAR TECHNOLOGY.  G&G shall promptly notify and transfer to Alamar
any inventions or discoveries that may be acquired or learned by G&G during the
course of the collaboration under this Agreement relating to Alamar's
proprietary technology.

    2.7   ALAMAR GRANT-BACKS.  In the event Alamar develops or acquires from
whatever source any Improvements relating to the Actuator or the Disposable, any
such Improvements shall automatically become property of G&G and, to the extent
such falls within the definition of G&G Technology or G&G Patent Rights, part of
the technology licensed to Alamar hereunder.  Alamar shall promptly notify G&G
of the acquisition or development of any Improvements and the parties shall
execute documents and otherwise cooperate as may be necessary or appropriate to
effect the transfer and/or license of any Improvements hereunder.

    2.8   G&G TECHNOLOGY.  Alamar shall promptly notify and transfer to G&G any
inventions or discoveries that may be acquired or learned by Alamar during the
course of the collaboration under this Agreement relating to G&G's proprietary
technology.

    2.9   FURNISHING G&G TECHNOLOGY AND G&G PATENT RIGHTS.  G&G shall furnish
to Alamar all G&G Technology and G&G Patent Rights licensed hereunder in the
form and at the times as reasonably requested by Alamar.


3.  LICENSE

    G&G hereby grants and Alamar accepts a worldwide exclusive license, to G&G
Technology and G&G Patent Rights, to make, use and sell the Actuator and the
Disposable solely as part of the Product and solely for the Alamar Application,
subject to Section 5.3(b) below.  Alamar will use its best efforts to market and
sell the Product worldwide.  G&G shall have and retain the rights to all other
applications and uses of the Actuator or the Disposable and any other G&G
inventions for liquid (or other) transfer.


4.  MANUFACTURE OF DISPOSABLE, SUPPLY OF ACTUATOR AND OTHER OBLIGATIONS

    4.1   MANUFACTURER OF THE DISPOSABLE.  G&G and Alamar will agree on a
common manufacturer(s) of the Disposable to take advantage of the knowledge
gained and to lower the cost of the Disposable for all uses of the Disposable,
whether licensed


                                          4

<PAGE>

hereunder or not.  As long as it makes commercial sense for G&G to do so, G&G
will use the same manufacturer for the Disposable as Alamar.  In the event the
parties are unable to agree, the parties may use different manufacturers.

    4.2   ALAMAR SUPPLY OBLIGATION.  Should G&G (or a third party designated by
G&G) wish to purchase the Actuator from Alamar for use of the Actuator in
applications other than that licensed to Alamar, Alamar agrees to use its best
efforts to manufacture and sell the Actuator to G&G or such third party,
PROVIDED, HOWEVER, that Alamar shall be under no obligation to (i) manufacture
Actuators that differ from the Actuator as used in the Product, or (ii) supply
Actuator's to G&G or any third party in quantities that exceed Alamar's
manufacturing capacity or that would result in an inability of Alamar to satisfy
demand for the Product.  In the event that G&G (or its designated third party)
requests Alamar to manufacture and deliver any Actuator that differs from the
Actuator as used in the Product, Alamar may require, as a prerequisite to such
manufacture and delivery, that G&G or its designated third party pay for any and
all retooling costs that may be associated with manufacture of a different
Actuator.  At that time, G&G and Alamar will negotiate Alamar's selling price of
the Actuator to G&G or the designated third party, provided, however, that such
selling price of the Actuator will be no more than twenty-five percent (25%)
above Alamar's cost of production of the Actuator.

    4.3   REGULATORY APPROVALS.  Alamar shall be responsible for obtaining all
regulatory or other governmental approvals or permissions for the manufacture
and marketing of the Product and Alamar agrees to use its best efforts to do so.
G&G agrees to assist Alamar and provide Alamar with all information reasonably
requested by Alamar to secure any such clearances, approvals or permissions,
including, without limitation, information relating to the research and
development of the Actuator, the Disposable and the Product.


5.  FEES AND ROYALTIES

    5.1   PAYMENT UPON EXECUTION OF AGREEMENT.  Upon the execution of this
Agreement, Alamar will pay G&G the non-refundable sum of U.S. $25,000 by check
sent via overnight delivery service to G&G's address as set forth in Section 14
of this Agreement or wire transfer in accordance with the G&G wire transfer
instructions as provided to Alamar in writing by G&G.

    5.2   MONTHLY PAYMENT TO G&G FOR DEVELOPMENT EFFORTS.  Until both Phase I,
Phase II and Phase III are completed, Alamar will pay to G&G as part
compensation for its activities in accordance with Section 2.2 above the
non-refundable sum of $2,000 per month in advance retroactive to January 17,
1994 with the first $6,000 due


                                          5

<PAGE>

upon signing of this Agreement and each subsequent $2,000 due the 17th day of
every month (or if the 17th is not a business day, then the first business day
after the 17th); provided, however, that such payments of $2,000 per month
shall terminate if Alamar elects to perform Phase I, Phase II and Phase III as
provided in Section 2.2 hereof. In addition, Alamar will pay for all of G&G's
reasonable and related travel expenses (any such expense in excess of $50 G&G
will discuss with Alamar before spending).

    5.3   MINIMUM ANNUAL ROYALTIES.

          (a)  AMOUNT.  Alamar shall pay to G&G a non-refundable minimum annual
royalty for each twelve month period beginning July 1 and ending June 30 as
follows:

               i.     First twelve month period (beginning July 1, 1994):
                      $25,000 (not including the amount paid upon execution of
                      this Agreement pursuant to Section 5.1 hereof.)
               ii.    Second and Third twelve month periods: $50,000;
               iii.   Fourth and Fifth twelve month periods: $75,000;
               iv.    Sixth twelve month period and each additional twelve
                      month period through the length of this Agreement as
                      defined in Section 12.1 below: $100,000

          (b)  NON-EXCLUSIVITY UNDER CERTAIN CIRCUMSTANCES.  If in the ninth
year of this Agreement (beginning July 1, 2002) or in any year thereafter Alamar
does not pay G&G at least $200,000 in royalties then the license granted under
this Agreement will automatically become non-exclusive, with G&G free to license
any other party.  All other terms and conditions of this Agreement will remain
the same through the remainder of the Agreement.

          (c)  TIMING AND METHOD OF PAYMENT.  Alamar shall pay to G&G on the
first day of each quarter, beginning July 1, 1994, twenty five percent (25%) of
each year's minimum annual royalty.  All payments made under Section 5.3 of this
Agreement shall be made and transmitted as described in Section 5.1 hereof.

    5.4   ROYALTIES.  Alamar shall make royalty payments to G&G as
follows:

          (a)  AMOUNT. Subject to Section 5.4 (b) below,

               i.     U.S. $50.00 for each Actuator sold; and
               ii.    for each Disposable sold
                       [a]  five cents ($.05) each for the first one million
                            Disposables sold (1-1,000,000);

                                          6

<PAGE>

                      [b]  seven and one-half cents ($.075) for each Disposable
                           sold in excess of one million.

For purposes of determining whether the amounts of Disposables referred to
above have been achieved, sales of Disposables to a dealer, distributor or
direct to the end-user by Alamar, an Affiliate or a sublicensee, shall be
aggregated, unless it, an Affiliate or sublicensee is an end-user, in which case
such sales shall also be taken into account.

          (b)  DEDUCTION OF QUARTERLY PAYMENTS.  The quarterly amounts paid by
Alamar in accordance with Section 5.3 above shall be, within each twelve month
period to which they apply (as set forth in Section 5.3(a) above, credited only
against any royalty payments due and payable under Section 5.4(a) above during
that same twelve month period.

          (c)  ADJUSTMENT UNDER CERTAIN CIRCUMSTANCES.  Alamar reserves the
right to adjust royalties (the amount of such adjustment to be agreed to by the
parties) to G&G if it is necessary and agreed upon by both parties to pay a
third party royalties for patents that are held by the third party for products
or inventions that are necessary to complete the proprietary technology of the
Product and therefore protect the added value of G&G's interest in the device.

          (d)  TIMING AND METHOD OF PAYMENT.

               i.     Amounts due for the royalties payable under this Section
5.4 will be paid quarterly within thirty days after the end of each calendar
quarter, commencing with the Quarter in which the First Commercial Sale of a
Product occurs.  Units used internally for demonstration, evaluations or
research and development will not be included in the calculation of royalties. 
Alamar will pay royalties for all product sales to a dealer, distributor or
direct to the end-user by itself, an Affiliate or a sublicensee unless it, an
Affiliate or sublicensee is an end-user in which case it will also pay
royalties.

               ii.    Each Royalty paid hereunder shall be accompanied by a
statement which shall set forth the number of Disposables and the number of
Actuators sold during that Quarter and the amount prepaid at the beginning of
the quarter under Section 5.3 hereof.

               iii.   The obligation to pay royalties to G&G under this
Agreement is imposed only once with respect to the same Product regardless of
the number of claims of G&G Patent Rights or the amount of G&G Technology
embodied in such Product.

               iv.    There shall be no obligation to pay royalties to G&G
under this Agreement on sales or other transfers of Products

                                          7

<PAGE>

between Alamar and its Affiliates and sublicensees, unless such Affiliates or
sublicensees uses same, but in such instances, the obligation to pay Royalties
shall arise upon the sale by Alamar or its Affiliates or sublicensees to
unrelated third party customers.  Payments due under this Section 5 shall be
deemed to accrue when either used by Alamar, its Affiliates or sublicensees or
sold to a dealer, distributor or end-user by Alamar, an Affiliate or a
sublicensee.

               v.     All amounts payable to G&G under this Agreement shall be
payable in U.S. Dollars and shall be made as described in Section 5.1 of this
Agreement.


    5.5   ISSUANCE OF SECURITIES.

          (a)  COMMON STOCK.  Upon execution of this Agreement, Alamar will
issue to G&G a total of $300,000 in Common Stock of Alamar (ALMR), with the
number of shares (the "Shares") to be determined at the time of the execution of
this Agreement by the price of the ten preceding days weighted average trading. 
The total number of Shares will be not less than 140,000 or more than 145,000
shares.  The Shares shall be issued in accordance with a Securities Purchase
Agreement between the parties hereto dated the same date as this Agreement (the
"Securities Purchase Agreement") in substantially the form attached hereto as
Exhibit B. The Shares will initially be issued without registration under the
Securities Act of 1933, but will contain "piggy-back" registration rights and
Alamar will in good faith attempt to register the Shares as soon as possible. 
G&G will be prohibited from trading more than twenty-five percent (25%) of the
total shares within any thirty (30) day period; the registration statement
covering these shares will be kept effective for at least nine months from the
date G&G receives all of the Shares unless G&G has sold all its Shares in a
shorter period.  The Shares will be held in escrow by Hackmyer & Nordlicht, 645
Fifth Avenue, New York, New York pursuant to an the Escrow Agreement, and given
to G&G at the completion as follows:

               i.     Upon completion of Phase I:     20%;
               ii.    Upon completion of Phase II:    40%;
               iii.   Upon completion of Phase III:   20%;
               iv.    Upon completion of Phase IV:  the remainder of the Shares

          (b)  WARRANT.  Alamar shall issue to G&G a warrant (the "Warrant") to
purchase a total of an additional 175,000 shares of Alamar's Common Stock (ALMR)
at a per share exercise price of U.S. five dollars (U.S. $5.00). The Warrant
shall not be transferrable for two years from the date it is released to G&G and
will expire on December 31, 1999.  Alamar will in good faith attempt to register
the underlying shares as soon as possible after the execution of the Securities
Purchase and Escrow Agreement and


                                          8

<PAGE>

Alamar will register the Warrant if feasible.  The Warrant shall contain such
additional terms as are set forth in the Form of Warrant attached as an exhibit
to the Securities Purchase Agreement.  Upon issuance, the Warrant shall be held
in escrow by Hackmyer & Nordlicht pursuant to the terms of the Securities
Purchase Agreement until the date on which the Phase IV portion of the Shares
are released under Section 5.5(a) above, at which time the Warrant shall also be
released to G&G.


6.  VERIFICATION

          For a period of five (5) years from the date when each royalty 
statement is due hereunder Alamar agrees to keep records in sufficient detail 
and to allow an independent certified public accounting firm appointed by 
G&G, and reasonably acceptable to Alamar, to examine its books and records, 
at G&G's sole expense, during business hours, but not more than twice a year, 
in order to verify the payments due under this Agreement; provided, however, 
that such certified public accounting firm shall not disclose any information 
to G&G except that information which should properly have been contained in 
such Royalty statement and provided, further, that if such certified public 
accounting firm is regularly employed by Alamar and can provide such 
information to G&G in the normal course of its activities for Alamar, it 
shall do so without charge to G&G and provided, further, that if the 
accounting firm determines that Alamar has paid to G&G less than it should 
have, Alamar shall bear the costs of the examination.


7.  CONFIDENTIAL INFORMATION

    7.1   G&G and Alamar agree to work together to develop mutually acceptable
procedures to protect each party's confidential information (as defined in
Section 7.2 below).  Such procedures will include, limiting duplication of
confidential documents, restricting dissemination of Confidential Information
only to those employees or representatives requiring it for purposes of
performing this Agreement, and requiring employees to enter into confidentiality
agreements, as the parties normally employ in the protection of their own highly
sensitive technical, confidential information.

    7.2   Any information which shall have been or will be communicated in
confidence under this Agreement including all information, whether conveyed in
writing, orally or through other tangible materials designated by the disclosing
party to be confidential (the "Confidential Information") shall be governed by
the provisions of this Section:


                                          9

<PAGE>

          (a)  Each party agrees not to use the Confidential Information
disclosed to it for its own benefit except for the purpose of performing its
obligations under this Agreement.

          (b)  Each party agrees not to disclose the Confidential Information
disclosed to it to any third party or to use such Confidential Information for
the benefit of any third party without the express written permission of the
disclosing party, except that the recipient shall not be prevented from using or
disclosing information:

               (i)    which recipient can demonstrate by written records was
          known to the recipient prior to the date of disclosure by the
          disclosing party, provided such information was not obtained by the
          recipient through disclosure by a third party receiving such
          information in confidence from the disclosing party;

               (ii)   which is now public knowledge, or becomes public
          knowledge in the future other than by breach of this Agreement by the
          recipient;

               (iii)  which, as can be established by written records, is
          independently developed by the recipient without benefit of
          Confidential Information received from the disclosing party;

               (iv)   which is disclosed to recipient, after the date of
          disclosure by the disclosing party by a third party having a right to
          make such disclosure;

               (v)    which is included in any filing or action taken by Alamar
          to obtain governmental approval to develop, promote, market and sell
          the Product, provided, however, that when permitted by the provisions
          of local law, Alamar will take reasonable steps to protect the
          confidentiality of Confidential Information submitted to governmental
          agencies or authorities pursuant to this Agreement; or

               (vi)   which is required in the judgment of the parties to be
          disclosed in order to enable Alamar effectively to clinically test or
          market a Product.

          (c)  Each party further agrees to use the same degree of care it uses
to protect its own confidential and proprietary technical information to prevent
the unauthorized disclosure to any third party of the Confidential Information.

          (d)  Each party agrees that it shall acquire no rights with respect
to Confidential Information disclosed to it by the other party, except as
expressly set forth in this Agreement.


                                          10

<PAGE>

          (e)  Each party agrees that the Confidential Information disclosed 
to it will not be disclosed to any third party or to any employees, officers, 
directors, consultants, advisors or agents of the recipient except to those 
employees, officers, directors, consultants, advisors or agents of the 
recipient who reasonably require such disclosure for purposes of performing 
the recipient's obligations under this Agreement and who are bound by 
confidentiality agreements or obligations which are the same as provided in 
this Section with respect to Confidential Information.

          (f)  Upon termination of this Agreement, each party shall return to
the other any tangible copies of any Confidential Information provided to it
hereunder and any notes taken by employees of such party regarding Confidential
Information disclosed to it.

          (g)  The confidentiality obligations under the terms of this
Agreement shall survive termination hereof, unless such obligations expire by
their terms.

          (h)  Unless otherwise identified that Confidential Information is
owned by a third party, each party acknowledges that all Confidential
Information is owned solely by the disclosing party and that unauthorized
disclosure or use of such Confidential Information could cause irreparable harm
and significant injury that might be difficult to ascertain or for which money
is inadequate compensation.  Accordingly, each party will be entitled to seek
injunctive and other preliminary and equitable relief to enforce this Section 7,
in addition to damages and other available remedies.

          (i)  Confidential Information relating to the subject matter of this
Agreement disclosed prior to the execution hereof shall be governed by the
provisions of this Section.


8.  LABELING

    All Products sold shall bear on the label the words, clearly legible to the
naked eye, "Manufactured under license from G&G Dispensing, Inc., Arlington,
Virginia, U.S.A." or any similar wording as may be agreed to by the parties (and
G&G hereby grants Alamar a limited non-exclusive license to use its name solely
in this manner and for this purpose), together with either (i) the words
"Patent Pending" or (ii) after a patent shall be issued for the Product, the
identification of the patent number.


9.  PATENTING OF INVENTIONS

    The costs of patenting any invention (as well as maintaining existing
patents) relating to the Product developed


                                          11

<PAGE>

either during the collaboration discussed in Section 2 above or at any other
time for the United States will be borne by G&G.  For all other countries the
costs of patenting any invention relating to the Product developed either during
the collaboration discussed in Section 2 above or at any other time (including
initial filing fees, international application fees and patent issuance fees)
will be shared equally by G&G and Alamar.  All foreign patent maintenance
expenses shall be borne by Alamar; provided, however, that if any other
applications are used, manufactured or sold in the same country as Alamar's
patent application, G&G will share one-half of the costs of maintaining patents
in such countries.  The parties will collaborate and freely inform each other on
all ongoing or planned patenting activities.  Within ten (10) days of the end of
each calendar year Alamar shall inform G&G in writing of how much it has spent
for patenting and maintenance, country by country.


10. INFRINGEMENT

    10.1  G&G represents to Alamar that G&G owns all G&G technology and G&G
Patent Rights as the same exist on the date hereof, and no other Person has any
direct or indirect rights in or to, or any liens on, any G&G Technology or G&G
Patent Rights, other than as may be granted by this Agreement.

    10.2  G&G does not represent or warrant that any patent included or to be 
included in the G&G Patent Rights is or will be valid or that the manufacture,
use or sale of the Products is not or will not be an infringement of the rights
of third parties, except that to G&G's knowledge, patent(s) presently applied
for, if any issue, do not infringe on any patent(s) in the United States as of
the date of the filing.

    10.3  Each party shall promptly notify the other of any infringement of or
challenge to the validity or enforceability of any patent within G&G Patent
Rights by a third party or parties, promptly after the notifying party learns of
such infringement, and shall provide the other party with any available evidence
of such infringement or challenge.  In the event either party receives notice
that manufacture, use or sale of Product infringes on the rights of any third
party because the Product embodies or uses G&G Technology, G&G Patent Rights or
any Alamar technology or patent rights, it shall promptly notify the other.

    10.4  Upon notice of infringement or such challenge upon any patent 
within G&G Patent Rights by a third party or parties, G&G shall at its sole 
option take reasonable steps to enforce such patent against such infringement 
or attack, and shall keep Alamar fully informed of the progress of such 
proceedings.  Any such action shall be at G&G expense and any damages 
recovered by G&G from such action shall belong solely to G&G.  Alamar shall, if


                                          12

<PAGE>

requested and at G&G expense, reasonably assist in the prosecution of such
action.


    10.5  In the event that G&G refuses or fails to institute and aggressively
prosecute legal proceedings against such infringement or challenge, or to
otherwise defend such patent, then Alamar shall have the right to enforce such
patent at its sole expense.  In such case, any damages recovered by Alamar shall
belong to Alamar.  G&G shall, if requested and at Alamar's expense, reasonably
assist in the prosecution of such action.  If Alamar finds it necessary or
desirable to join G&G as a party plaintiff, G&G shall execute all papers
necessary and perform such other acts as may be reasonably required by Alamar.


11. PRODUCT LIABILITY

    Alamar assumes all risk of damage or injury to persons or property arising
out of the clinical testing, manufacture, use or sale of the Products by Alamar,
and shall hold harmless and indemnify G&G, except where due to gross negligence
or wilful misconduct by G&G, from and against any and all personal injury,
property damage, product liability or similar claims, losses and liabilities
arising out of Alamar's manufacture, use or sale of the Products, including
attorneys fees and other costs of defense, except, with reference to a Product,
to the extent that any such damage or injury is clearly attributable to
negligence on the part of G&G should G&G manufacture or conduct clinical trials
of that Product pursuant to this Agreement.


12. TERM AND TERMINATION

    12.1  TERM.  The term of this Agreement shall be the longer of the life of
any patent licensed hereunder or ten years from the date of First Commercial
Sale of the Product.

    12.2  TERMINATION.

          (a) BY EITHER PARTY.  Either party shall have the right to terminate
this Agreement forthwith by notice in writing to the other party

               i.     if the other party fails to perform or observe any of the
material terms hereof on its part to be performed and observed and fails to
remedy such breach within thirty (30) days of a notice to remedy the same (such
notice giving adequate particulars of the alleged default and of the intention
of the party serving the notice to terminate this Agreement under this 
Section) or, if the breach is one which requires more than thirty (30) days to
remedy, the remedying was not commenced promptly and thereafter diligently
pursued.


                                          13

<PAGE>

               ii.    In the event that Phase IV is not completed on or before
eighteen (18) months days from the date of this Agreement.

               iii.   In the event that: (1) the other party becomes insolvent
or enters in any arrangement or composition with creditors, or makes an
assignment for the benefit of creditors; (2) there is a dissolution, liquidation
or winding-up of the other party's business; or (3) a trustee in bankruptcy of
the assets of the other party is appointed and such trustee does not, within
thirty (30) days after receipt of written notice from the other party, confirm
this Agreement and provide adequate assurance that the terms and conditions
hereof shall faithfully be fulfilled.

          (b)  BY G&G.  If Alamar fails to pay the minimum annual payments or
any other payments when due, G&G shall have the right to terminate or render
non-exclusive Alamar's rights to the Product and Alamar would, in addition, lose
all rights it might have to the technology, and information related to the
Product and any improvements to the Product, PROVIDED, HOWEVER, that prior to
any such termination, G&G shall notify Alamar of its intent to terminate, and
Alamar shall have a period of five (5) days from that date of receipt of
notification that it has failed to pay to pay to G&G all amounts then owing
under this Agreement.  If G&G receives payment in full within the five (5) day
period, G&G's right to terminate this Agreement under this paragraph shall
terminate as to that specific failure to pay, and provided, further, that,
alternatively, if Alamar fails to make any payments hereunder when due and such
failure to pay is not cured within the five (5) day period after receipt by
Alamar of notice of such failure to pay, G&G may decline to terminate this
Agreement and, at its option, convert the license under this Agreement to a
non-exclusive license.  In such case, all other terms and conditions of this
Agreement shall remain in full force and effect.

    12.3  SURVIVAL.  The following provisions shall survive any termination of
this Agreement: Sections 6, 7, 11 and 16

    12.4  RIGHTS ON TERMINATION.  On termination of this Agreement, pursuant to
either Section 12.1 or Section 12.2 above, Alamar shall cease and desist from in
any way manufacturing, using or selling any product using or containing any G&G
Technology or G&G Patent Rights, except

          (a)  Alamar shall be allowed to manufacture, use and sell Products
for so long as shall be reasonably necessary for Alamar to comply with its then
current distribution and/or purchase contracts or purchase orders relating to
the Product (provided, however, that Alamar will not be entitled to manufacture,
use and sell Products for more than a three (3) month period after termination
in such instance), but Alamar shall not enter into any new contracts or purchase
orders, or modify any existing contracts


                                          14

<PAGE>

or purchase orders, relating to the Product that would result in any increase in
Alamar's obligations to deliver Products.

    (b)   Alamar shall pay to G&G all royalties due and payable hereunder for
any post-termination sales or otherwise.


13. GOVERNING LAW, CONCILIATION AND ARBITRATION

    13.1  This Agreement shall be governed by and interpreted and enforced in
accordance with the laws of the State of Maryland of the United States of
America regardless of the choice of law principles of New York or any other
jurisdiction.

    13.2  in the event that any controversy or claim shall arise under, out of,
in connection with, or relating to this Agreement or the breach thereof, the
party initiating such controversy or making such claim shall provide to the
other party a written notice containing a brief and concise statement of the
initiating party's claims, together with relevant facts supporting them.  During
a period of sixty (60) days, or such longer period as may be mutually agreed
upon in writing by the parties, following the date of said notice, the parties
shall make good faith efforts to settle the dispute.  Such efforts will include,
but shall not be limited to, full presentation of both parties' claims and
responses, with or without the assistance of counsel, before the President of
G&G and the Chief Executive Officer of Alamar, or an equivalent executive if
such positions do not exist in the respective companies.

    13.3  In the event that the parties have been unable to reach accord using
the procedures in Section 13.2 and only if such is the case, either party may
initiate arbitration proceedings.  Failure to comply with the provisions of this
Section 13.2 with respect to any controversy or claim shall constitute an
absolute bar to the institution of any arbitration proceedings with respect to
such controversy or claim.

    13.4  Subject to the provisions of Sections 13.2 and 13.3, any controversy
or claim which may arise under, out of, in connection with, or relating to this
Agreement or the breach thereof shall be settled by final and binding
arbitration in Arlington, Virginia, U.S.A., in accordance with the then existing
rules of the American Arbitration Association and judgment upon the award
rendered by the arbitrators may be entered in any court having jurisdiction
thereof.  In any such arbitration the rights of the parties shall be determined
according to the governing law set forth in Section 13.1.  The parties hereto
agree that the service of any notice in the course of such arbitration at the
respective addresses as provided for in Section 14 below shall be valid and
binding.


                                          15

<PAGE>

    13.5  In any arbitration proceeding hereunder, there shall be three (3)
arbitrators. Each party shall appoint one (1) arbitrator, and the two (2)
arbitrators so appointed shall, by mutual agreement, appoint a third arbitrator.
In the event that any party fails to appoint an arbitrator within one (1) month
after the receipt of written notification of the commencement of the arbitration
proceeding, such arbitrator shall, at the written request of the party
requesting arbitration, be appointed by the then President or presiding officer
of the American Arbitration Association in accordance with its then existing
rules of appointment.  For the purposes of this Agreement, "commencement of the
arbitration proceeding" shall mean the date on which a written demand for
arbitration is received by the American Arbitration Association. The arbitrators
will render a decision within six months of the date when the third arbitrator
is appointed, except in the extraordinary situation where rendering such
decision within six months would deprive either party of procedural due process.
The decision of a majority of the arbitrators shall be final and binding on the
parties, each arbitrator having one (1) vote.

    13.6  The intent of the parties is that, except for the remedy provided in
Section 7.2(h) regarding protection of Confidential Information, and the
entering of an arbitration order in a court of competent jurisdiction, disputes
will be resolved finally in arbitration as provided above, without appeal, and
without recourse to litigation in the courts.


14. NOTICES

    Any notice required or permitted to be given hereunder shall be in writing
and shall be deemed sufficient if sent by registered or certified mail or air
express or delivered by hand or via telex or telecopier to the respective party
at the address stated below:  (with hard copy to follow via U.S. Mail)

    If to G&G:

          G&G Dispensing, Inc.
          1005 York Lane
          Annapolis, Maryland 21403

          Attention:  Jack Goodman, President

          Facsimile No.  (703) 276-1806


                                          16

<PAGE>

    with a copy to

          Ira S. Nordlicht, Esq.
          Hackmyer & Nordlicht
          645 Fifth Avenue
          New York, New York 10022

          Facsimile No. (212) 421-0499

    If to Alamar:

          Alamar Biosciences, Inc.
          4110 Forth Freeway Boulevard
          Sacramento, California 95834

          Attention:  Kenneth D. Miller
                      Chief Executive Officer

          Facsimile No. (916) 567-3987

Any such notice mailed by registered or certified mail or air express or
telecopy of facsimile transmission shall be deemed to have been given when
mailed, telecopied or faxed, as evidenced by the date on the receipt retained by
the sender.  Either party may change the address to which notice to it is to be
given by notice as provided herein.


15. ASSIGNABILITY

    15.1  This Agreement shall not be assignable without the prior written
consent of the other party hereto other than to an entity acquiring all or
substantially all of the stock or assets of the assignor by merger,
consolidation, purchase or similar transaction.  All references to a party in
this Agreement shall, to the extent reasonably necessary to carry out the
purpose of this Section 15, be considered references to each permitted
transferee or assignee of such party.

    15.2  This Agreement shall be binding upon and inure to the benefit of the
successors or permitted assigns of Alamar and G&G, respectively.

16. PRIMARY LIABILITY

    In the event any of the obligations of a party hereto, including the
payment of monies due hereunder, are assumed by an Affiliate, the party shall
remain bound by such obligations, shall be the primary obligor under this
Agreement and shall be the guarantor of performance of such Affiliate.  For
example, in the case of royalty payments, Alamar shall be the guarantor of
payment


                                          17

<PAGE>

and not of collection.  For example, if an Affiliate refuses to pay G&G
royalties, G&G may, without further ado, immediately turn to and receive payment
of those royalties from Alamar.

17. EXCUSED NON-PERFORMANCE

    Each of the parties hereto shall be excused from the performance of its
obligations hereunder in the event such performance is prevented by a cause
beyond the reasonable control of such party, including, without limitation, act
of God, act, regulation or law of any government, war civil commotion,
destruction of production facilities or materials by fire, earthquake or storm,
labor disturbance, epidemic and failure of suppliers, public utilities or common
carriers.

18. ENTIRE UNDERSTANDING

    This Agreement, with the Securities Purchase Agreement and the Escrow
Agreement and the exhibits hereto and thereto, constitute the entire
understanding between the parties with respect to the subject matter hereof and
supersedes all previous negotiations, representations, and writings relating
thereto.  No variation or modification of this Agreement or waiver of any of the
terms or provisions hereof shall be valid unless in writing and signed by the
appropriate party or parties hereto.

19. SEVERABILITY

    Should any part of the Agreement be held unenforceable or in conflict with
the applicable laws or regulations of any applicable jurisdiction, the invalid
or unenforceable part or provision shall be replaced with a provision which
accomplishes, to the extent possible, the original business purpose of the
invalid or unenforceable part or provision in a valid and enforceable manner,
and the remainder of this Agreement shall remain binding upon the parties
hereto.

20. NEWS RELEASE

    Neither G&G nor Alamar will issue any news releases or make any public
statements regarding this Agreement without the prior written consent of the
other party, provided that Alamar or G&G may, if considered necessary by its
counsel to fulfill its legal and accounting obligations, respond to inquiries
and make such releases as it considers appropriate if it notifies the other
party in advance of the substance of any such response to release and gives the
other party reasonable opportunity for prior comment.


                                          18

<PAGE>

21. CAPTIONS

    The captions and article headings employed in this Agreement are intended
solely for the convenience of the parties and shall in no way affect or
influence the meaning or interpretation of any of the provisions hereof.

22. CERTAIN REPRESENTATION.

    G&G represents that it is successor in interest to Imagination Two, Ltd.
and that all benefits and obligations of Imagination Two Ltd. as set forth in
that certain letter of intent by and between Alamar and Imagination Two Ltd.
have been assumed by G&G.


    IN WITNESS WHEREOF, the parties have caused this Agreement to be executed
by their duly authorized representatives as of the date first written above.

                                       G&G Dispensing, Inc.



Attest:                                By /s/ Jack Goodman
                                         ----------------------------
                                       Name: Jack Goodman
                                            -------------------------
                                       Title: President
- -----------------------------------          ------------------------


                                       Alamar Biosciences, Inc.



Attest:                                By /s/ Kenneth D. Miller
                                         ----------------------------
                                       Name: Kenneth D. Miller
                                            -------------------------
/s/ Rebecca D. Fields                  Title: CEO
- -----------------------------------          ------------------------


                                          19

<PAGE>

                                                                  Exhibit 10-28

                             ACCUMED INTERNATIONAL, INC.

                                   PUBLIC OFFERING

                     LETTER OF TRANSMITTAL AND CUSTODY AGREEMENT



American Stock Transfer & Trust Company
40 Wall Street
New York, New York 10005


Ladies and Gentlemen:

    The undersigned holder of common stock or vested options or warrants to
purchase shares of common stock of AccuMed International, Inc., a Delaware
corporation (the "Company"), understands that the undersigned and certain other
stockholders of the Company (the undersigned and such other stockholders being
hereinafter referred to as the "Selling Stockholders") will sell, and the
Company will issue and sell, shares of common stock, par value $.01 per share,
of the Company (the "Common Stock") to certain underwriters (the "Underwriters")
to be named on Schedule I to that certain underwriting agreement (the
"Underwriting Agreement") to be entered into among the Company, the Selling
Stockholders and Tucker Anthony Incorporated and Vector Securities
International, Inc., as representatives (the "Representatives") of the
Underwriters.  The undersigned also understands that in connection with such
offering the Company has filed a Registration Statement on Form S-2 (the
"Registration Statement") with the Securities and Exchange Commission (the
"Commission") to register the shares to be offered under the Securities Act of
1933, as amended (the "Act").

    1.   DELIVERY OF STOCK CERTIFICATES AND OPTION EXERCISE NOTICES AND
         APPOINTMENT OF CUSTODIAN.

    Enclosed herewith are (i) a certificate or certificates (the "Stock
Certificate(s)"), in negotiable and deliverable form (with signatures
guaranteed, along with a duly executed stock power(s) (the "Stock Powers"), in
blank, bearing the signature of the undersigned so guaranteed), (ii) a warrant
certificate or certificates (the "Warrant Certificate(s)") and/or (iii) a stock
option agreement (the "Stock Option Agreement(s)"), as appropriate, representing
the number of shares of Common Stock, (or, in the case of the Warrant
Certificate(s) and the Stock Option Agreement(s), the right to purchase such
number of shares of Common Stock) as set forth on Schedule I hereto.  The Stock
Certificate(s) and the Warrant Certificate(s) are referred to collectively
herein as the "Certificate(s)."  As custodian pursuant to this Letter of
Transmittal and Custody Agreement (this "Custody Agreement"), American Stock
Transfer & Trust Company (the "Custodian") is to hold the Certificate(s)
deposited herewith for the
<PAGE>

account of the undersigned and to dispose of the Certificate(s) in accordance
with this Custody Agreement.

    In addition, to the extent that the undersigned proposes to exercise
options or warrants in connection with the sale of shares of Common Stock to the
Underwriters, there is deposited with the Custodian herewith a copy of a notice
of exercise (in the case of warrants, such notice of exercise to be in the form
attached to the applicable Warrant Certificate or warrant agreement) and an
accompanying letter of direction by the Company (collectively, the "Exercise
Notice") with respect to the options (the "Options") or warrants (the
"Warrants") to purchase the number of shares of Common Stock set forth on
Schedule I attached hereto (collectively, the "Options/Warrants"), together with
stock powers duly endorsed in blank by the undersigned (with signatures
guaranteed as described above) and with such other documents and requisites as
may be necessary to place the certificates for Common Stock issuable upon the
exercise of the Options/Warrants in fully negotiable form.  Pursuant to the
Exercise Notice, the Options/Warrants will be exercised on the Closing Date (as
defined in the Underwriting Agreement) for the number of shares of Common Stock
designated on Schedule I. The Exercise Notice and the certificates representing
shares of Common Stock issuable upon the exercise of the Options/Warrants are to
be held by the Custodian for the account of the undersigned and are to be dealt
with by the Custodian in accordance with this Custody Agreement.

    2.   ADDITIONAL DOCUMENTS TO BE DELIVERED BY THE UNDERSIGNED.

    If applicable, the undersigned hereby also agrees to deliver the following
documents to the Custodian upon the Custodian's request: (i) If the undersigned
is acting as trustee or in any other fiduciary or representative capacity, duly
certified copies of each trust agreement, will, letters testamentary or other
instrument pursuant to which the undersigned is authorized to act as a Selling
Stockholder; (ii) If the undersigned is a corporation, duly certified
resolutions of its Board of Directors authorizing it to enter into this Custody
Agreement and the Underwriting Agreement and duly certified copies of such
corporation's By-Laws and Articles of Incorporation; or (iii) If the undersigned
is a partnership, extracts of any applicable provisions of its partnership
agreement (and applicable provisions of the charter document or partnership
agreement of the general partner(s) of such partnership) authorizing such
partnership to enter into this Custody Agreement and the Underwriting Agreement.

    The undersigned also agrees to deliver to the Attorneys (as defined in this
letter) or to the Custodian such additional documentation as the Attorneys, or
either of them, or the Company, the Representatives, or the Custodian or any of
their respective counsel, may request to effectuate or confirm compliance with
any of the provisions hereof or of the Underwriting Agreement, all of the
foregoing to be in form and substance satisfactory in all respects to the
Attorneys, the Company, the Representatives, the Custodian and their respective
counsel.


                                          2

<PAGE>


    3.   DELIVERY OF IRREVOCABLE POWER OF ATTORNEY.

    At the same time that the undersigned signed and delivered this Custody
Agreement, the undersigned signed an Irrevocable Power Of Attorney of Selling
Stockholder (the "Power of Attorney") authorizing Peter P. Gombrich and Jude
Augustine or their duly designated substitutes (throughout this Custody
Agreement, such individuals are sometimes individually referred to as the
"Attorney" and sometimes collectively referred to as "Attorneys" and in any
capacity described herein, such individuals are fully authorized to act, in
their sole discretion, together or alone), to take certain actions under the
Power of Attorney and for that purpose to execute, deliver and perform the
Underwriting Agreement on behalf of the undersigned.

    4.   DIRECTIONS TO THE CUSTODIAN.

    The Custodian is hereby authorized and directed to hold the Certificate(s),
the Stock Option Agreement(s), the Exercise Notice and the Stock Power(s)
deposited in your custody. If and when the Attorneys shall have furnished the
Custodian with a counterpart of the Underwriting Agreement that has been
executed and delivered by or on behalf of the undersigned and all other parties
thereto, the Custodian is hereby also authorized and directed on behalf of the
undersigned, in the case of Options/Warrants with respect to which an Exercise
Notice is so deposited, to issue on the Closing Date certificates representing
the shares of Common Stock issuable upon the exercise of the Options/Warrants on
the Closing Date, as designated by the undersigned holder, of which the
certificates for shares of Common Stock intended to be sold pursuant to the
Underwriting Agreement by the undersigned shall be without legends restricting
transfer or disposition of such shares. On the Closing Date (as defined in the
Underwriting Agreement), the Custodian is authorized and directed, on behalf of
the undersigned, (i) to cause the number of shares of Common Stock which are to
be sold by the undersigned on such Closing Date be transferred on the books of
the Company into such names as the Representatives shall have instructed the
Custodian, (ii) to purchase all stock transfer tax stamps necessary (if any) in
connection with the transfer of such shares as aforesaid, and (iii) to deliver
new certificates to the Representatives, in such names and denominations as the
Representatives may designate, against payment for such shares of Common Stock
pursuant to the Underwriting Agreement, to give receipt for such payment and to
deposit the same to the Custodian's account. The Custodian is hereby further
authorized and instructed to (i) draw upon such account to (a) pay such
expenses, if any, as the Custodian may be instructed to pay by any one or both
of the Attorneys and (b) in the case of Options/Warrants, to remit promptly to
the Company an amount equal to the sum of (x) the exercise price payable in
connection with the exercise of such Options or Warrants, as the case may be, as
set forth in Schedule I, and (y) the withholding taxes payable in connection
with the exercise of such Options or Warrants, as the case may be, as indicated
in the Exercise Notice, and (ii) to remit promptly to the undersigned, in
accordance with the payment instructions set forth following the signature of
the undersigned at the end of this letter, the balance, after deducting such
expenses and, if applicable, such exercise price and withholding taxes. At the
time of such remittance you shall also return to the undersigned,


                                          3

<PAGE>

personally or by registered or certified United States mail addressed to the
undersigned at the address shown below the signature of the undersigned at the
end of this letter, new stock or warrant certificates (with a legend or legends
restricting the transfer or disposition of such stock or warrants, as the case
may be) representing the number of shares of Common Stock, if any, represented
by the Certificate(s) and the Exercise Notice deposited with you, which are in
excess of the number of shares of Common Stock sold by the undersigned to the
Underwriters.

    The Custodian is hereby also authorized and directed (i) to permit
inspection and packaging by the Underwriters of the certificates being delivered
pursuant to the Underwriting Agreement as provided in the Underwriting
Agreement, (ii) to determine, in the sole and absolute discretion of the
Custodian, whether and when, the purpose for, and the manner in which, any power
conferred herein to the Custodian shall be exercised, and the conditions,
provisions and covenants of any instrument or document which may be executed by
the Custodian hereto and (iii) to do all things pursuant to this Custody
Agreement as the Custodian may in its sole discretion deem appropriate,
including, without limitation, the execution and delivery of all certificates,
receipts, instruments, letters of transmittal and other documents and papers
required, contemplated by or deemed by the Custodian appropriate in connection
with this Custody Agreement to the Underwriters or any other person, and the
employment of such counsel or other person or firms as the Custodian in its sole
and absolute discretion shall deem necessary.

    Until the Underwriters make payment to the Custodian of the purchase price
for the shares to be sold by the undersigned, the undersigned will remain the
owner of such shares and will have the right to vote such shares and all other
shares, if any, represented by the Stock Certificate(s) or received upon the
exercise of the Options or Warrants, as the case may be, and to receive all
dividends and distributions thereon.

    The Custodian will be entitled to act and rely upon any statement, request,
notice or instructions respecting this Custody Agreement given to the Custodian
by the Attorneys or either of them.

    In taking any action required by the Underwriters, the Custodian may rely
upon a writing by the Representatives.

    5.   LIMITATION OF CUSTODIAN LIABILITY; INDEMNIFICATION OF THE
         CUSTODIAN.

    It is understood that the Custodian assumes no responsibility or liability
to any person other than to deal with the Certificate(s), Stock Option
Agreement(s), Exercise Notice and Stock Power(s) deposited with this letter and
the proceeds from the sale of all or a portion of the shares represented thereby
in accordance with the provisions of this Custody Agreement, and the undersigned
agrees to indemnify and hold the Custodian harmless with respect to


                                          4

<PAGE>

anything done by the Custodian in good faith and in accordance with the
foregoing instructions.

    6.   TERMINATION OF CUSTODY AGREEMENT.

    If the Underwriting Agreement has not been entered into prior to September
30, 1996, then, upon the written request of the undersigned to the Custodian
(accompanied by written notice of termination of the Power of Attorney addressed
to each of the Attorneys) on or after that date, the Custodian shall return to
the undersigned the Certificate(s), Stock Option Agreement(s), Exercise Notice
and Stock Power(s).

    Under the terms of the Power of Attorney, authority is granted, made and
conferred subject to and in consideration of the interests of the Attorneys, the
Company, the Underwriters and other Selling Stockholders. Prior to September 30,
1996, the Power of Attorney constitutes an agency coupled with an interest and
is therefore irrevocable and not subject to termination by the undersigned or by
operation of law, whether by the death or incapacity of the undersigned, the
termination of any trust or estate, the dissolution or liquidation of any
corporation or partnership or the occurrence of any other event, and the
obligations of the undersigned under the Underwriting Agreement are similarly
not subject to termination and will remain in full force and effect until such
date.

    Accordingly, the Certificate(s), Stock Option Agreement(s), Exercise Notice
and Stock Power(s), as applicable, deposited with the Custodian and the
Custodian's authority by virtue of this letter are subject to the interests of
the Attorneys, the Company, the Underwriters and the other Selling Stockholders,
and this Custody Agreement and the Custodian's authority by virtue of this
letter are irrevocable and are not subject to termination by the undersigned or
by operation of law, whether by the death or incapacity of the undersigned, the
termination of any trust or estate, the dissolution or liquidation of any
corporation or partnership or the occurrence of any other event. If the
undersigned should die or become incapacitated, if any trust or estate should be
terminated, if any corporation or partnership should be dissolved or liquidated
or if any other such event should occur, the Custodian must deliver
certificate(s) for the shares to be sold by the undersigned in accordance with
the terms and conditions of the Underwriting Agreement and this Custody
Agreement, and any action taken by the Custodian pursuant to this Custody
Agreement will be as valid as if such death or incapacity, termination,
dissolution, liquidation or other event had not occurred, regardless of whether
or not the Custodian or the Attorneys, or either of the Attorneys, received
notice of such death, incapacity termination dissolution, liquidation or other
event.

    7.   TRANSFER TAXES.

    The undersigned hereby agrees that it will pay any and all transfer taxes
incident to the transfer to the Underwriters of the shares of stock being sold
by such Selling Stockholder as contemplated herewith.


                                          5

<PAGE>


    8.   MISCELLANEOUS.

    This Custody Agreement will be governed by the laws of the State of
Illinois as applied to transactions taking place wholly within Illinois between
Illinois residents.

    This Custody Agreement may be executed in any number of counterparts, each
of which shall be deemed to be an original and all of which together shall be
deemed to be one and the same instrument.


                                          6

<PAGE>

    IN WITNESS WHEREOF, the undesigned has executed this Custody Agreement this
_________, 1996.

                                       Selling Stockholder(s)




                                       ________________________________________



                                       ________________________________________
                                       Printed Name(s)

                                       To be signed exactly as name appears on
                                       deposited Certificate(s) (or, if only an
                                       Exercise Notice is deposited, as name
                                       appears on Exercise Notice).



                                       Signature Guaranteed by:



                                       ----------------------------------------

                                       By:_____________________________________



                                       (Note:  The signature(s) must be
                                       medallion guaranteed by a national bank
                                       or trust company, or a member firm of
                                       the National Association of Securities
                                       Dealers, Inc., or by a financial
                                       institution that is a participant in the
                                       Security Transfer Agents Medallion
                                       Program or the New York Stock Exchange
                                       Medallion Signature Guarantee Program.
                                       Notarization by a notary public is not
                                       acceptable.)


                                          7

<PAGE>

                                 PAYMENT INSTRUCTIONS


     Funds held by the Custodian representing proceeds received upon the sale of
shares of Common Stock less all authorized draws hereunder are to be remitted in
accordance with the provisions of this Letter of Transmittal and Custody
Agreement by mailing a cashier's check (payable to the order of the Selling
Stockholder) to:


               Name:     ______________________________
               Address:  ______________________________
                         ______________________________
                         ______________________________
                         ______________________________
                              (Please Print)


                                          8

<PAGE>

                        CUSTODIAN'S ACKNOWLEDGMENT AND RECEIPT

     American Stock Transfer & Trust Company, as Custodian, acknowledges
acceptance of the duties of Custodian under the foregoing Custody Agreement and
receipt of the Certificate(s), Stock Power(s), Stock Option Agreement(s) and
Exercise Notice, as the case may be,  referred to therein.

Dated:_________________________

                                             AMERICAN STOCK TRANSFER & TRUST
                                             COMPANY



                                             By: ______________________________


                                          9

<PAGE>

                                      SCHEDULE I

                              __________________________

                              __________________________
                                Stockholder's Name(s)


                                        Maximum Number of Shares of Common Stock
                                        to be Sold by the Undersigned to the
                                        Underwriters:

                                        __________ Initial Shares







                                                       Number of Shares to
                            Number of Shares of   be Sold from Stock Certificate
                               Common Stock          if Less Than All Shares
     Stock Certificate      Represented by Each        Represented Thereby
         Number(s)           Stock Certificate            are to be Sold (1)
         ---------           -----------------         --------------------

     ___________________    ___________________        ____________________
     ___________________    ___________________        ____________________
     ___________________    ___________________        ____________________


<TABLE>
<CAPTION>


           <S>                                <C>                        <C>

                                                                                 Number of Shares to
                                              Number of Shares of         be Sold from Warrant Certificate
                                               Common Stock if                  Less Than All Shares
           Warrant Certificate                Represented by Each                Represented Thereby                Exercise Price
                Number(s)                     Warrant Certificate                  are to be Sold(1)                    per Share
                ---------                     -------------------                  -----------------                    ---------

           ___________________                ___________________               ____________________            ____________________
           ___________________                ___________________               ____________________            ____________________
           ___________________                ___________________               ____________________            ____________________




- -------------------
(1) If no indication is made, selection to be at the Custodian's discretion.



                                                                     10


</TABLE>

<PAGE>

<TABLE>
<CAPTION>

     <S>                                  <C>                                <C>
                                            Number of Shares
                                              to be Sold
    Number of Shares of                     from Exercise
      Common Stock                        Notice if Less Than
    Represented by an                    All Shares Represented                Exercise Price
     Exercise Notice                     Thereby are to be Sold (1)              per Share
     ---------------                     --------------------------              ---------


    ___________________                    ___________________               ____________________
    ___________________                    ___________________               ____________________
    ___________________                    ___________________               ____________________




</TABLE>


TOTAL NUMBER OF SHARES TO BE SOLD (2)

____________________
(2)  This total must be equal to the maximum number of shares of Common Stock to
     be sold to the Underwriters, as indicated in the table above.


                                11


<PAGE>

                                                                  Exhibit 10-29

                             ACCUMED INTERNATIONAL, INC.

                                    LOCK-UP LETTER

                                    July 16, 1996


VECTOR SECURITIES INTERNATIONAL, INC.
TUCKER ANTHONY INCORPORATED
c/o VECTOR SECURITIES INTERNATIONAL, INC.
1751 Lake Cook Road, Suite 350
Deerfield, Illinois 60015

Dear Sirs:

    The undersigned understands that you and certain other firms propose to
enter into an Underwriting Agreement (the "Underwriting Agreement") providing
for the purchase by you and other such firms (the "Underwriters") of shares (the
"Shares") of Common Stock, par value $.01 per share (the "Common Stock"), of
Accumed International, Inc. (the "Company") from the Company and certain
stockholders and that the Underwriters propose to reoffer the Shares to the
public (the "Offering").

    In consideration of the execution of the Underwriting Agreement by the
Underwriters, and for other good and valuable consideration the receipt and
sufficiency of which is hereby acknowledged, the undersigned hereby irrevocably
agrees that, without the prior written consent of Vector Securities
International, Inc. and Tucker Anthony Incorporated (the "Representatives") the
undersigned will not, directly or indirectly, sell, offer to sell, solicit an
offer to buy, contract to sell (including, without limitation, any short sale),
grant any option to purchase or right to acquire, acquire any option to dispose
of, or otherwise transfer or dispose of, any shares of Common Stock, or any
securities convertible into or exercisable or exchangeable for Common Stock or
such similar securities (other than in the Offering), for a period of two
hundred and seventy (270) days after the date of the final Prospectus relating
to the Offering.  Notwithstanding the foregoing, the undersigned, without the
consent of the Representatives, may sell (i) up to one-third of the Common Stock
(including Common Stock issuable upon exercise of outstanding options or
warrants owned by the undersigned) owned by the undersigned on the date hereof
exclusive of Shares to be offered in the Offering (the "Non-offered Shares")
exclusive of Shares to be offered in the Offering (the "Non-offered Shares")
following 90 days after the date of the final Prospectus relating to the
Offering and (ii) up to and an additional one-third of the Non-offered Shares on
the date hereof after 180 days following the date of the final Prospectus
relating to the Offering.


<PAGE>

    The undersigned hereby represents that he, she or it has not taken, and
agrees that he, she or it shall not take any action designed to, or that might
reasonably be expected to, cause or result in stabilization or manipulation of
the price of Common Stock or to facilitate the sale of Shares in the public
offering contemplated by the Underwriting Agreement in violation of law.

    The undersigned agrees that the provisions of this Agreement shall be
binding also upon the successors, assigns, heirs and personal representatives of
the undersigned.

    In furtherance of the foregoing, the Company and American Stock & Trust
Co., its Transfer Agent, are hereby authorized to decline to make any transfer
of securities if such transfer would constitute a violation or breach of this
letter agreement.

    It is understood that, if the Underwriting Agreement does not become
effective, or if the Underwriting Agreement (other than the provisions thereof
which survive termination) shall terminate or be terminated prior to payment for
the delivery of the Shares, you will release us from our obligations under this
letter agreement.


Number of Shares of Common             Very truly yours
Stock owned by the undersigned:


_____________ Shares                   -------------------------
                                       Signature



Number of Shares of Common
Stock underlying options and warrants
owned by the undersigned:


_____________ Shares                   -------------------------
                                       Printed Name and Title




    THE COMPANY REQUESTS THAT THIS LOCK-UP AGREEMENT BE COMPLETED AND DELIVERED
BY FACSIMILE AS SOON AS POSSIBLE TO THE COMPANY'S COUNSEL, GRAHAM & JAMES LLP,
400 CAPITOL MALL, SUITE 2400, SACRAMENTO, CA 95814, ATTN:  CHRISTOPHER W. EWING,
ESQ., FACSIMILE (916) 441-6700, TELEPHONE (916) 558-6700.


                                          2


<PAGE>

                             ACCUMED INTERNATIONAL, INC.

                                   PUBLIC OFFERING

                 IRREVOCABLE POWER OF ATTORNEY OF SELLING STOCKHOLDER


Mr. Peter P. Gombrich
Ms. Jude Augustine
c/o AccuMed International, Inc.
900 North Franklin Street
Suite 401
Chicago, Illinois  60610

Ladies and Gentlemen:

    The undersigned holder of common stock or vested options or warrants to
purchase common stock of AccuMed International, Inc., a Delaware corporation
(the "Company"), understands (a) that certain stockholders of the Company,
including the undersigned (collectively, the "Selling Stockholders"), intend to
sell shares of the Company's Common Stock, par value $.01 per share (the "Common
Stock"), to certain underwriters (the "Underwriters") to be named in an
underwriting agreement (the "Underwriting Agreement") to be entered into among
the Company, the Selling Stockholders and the Underwriters in connection with a
proposed public offering by the Company and the Selling Stockholders of shares
of Common Stock (the "Public Offering"); (b) that Tucker Anthony, Incorporated
and Vector Securities International, Inc. will be acting as the representatives
of the Underwriters (the "Representatives"); and (c) that the Underwriters
propose to offer and sell such shares of Common Stock to the public.  The
undersigned also understands that in connection with such offer and sale, the
Company has filed a Registration Statement on Form S-2 (the "Registration
Statement") with the Securities and Exchange Commission (the "Commission") to
register the shares to be offered under the Securities Act of 1933, as amended.

    Set forth opposite the name of the undersigned at the end of this
instrument is the number of shares of Common Stock that the undersigned proposes
to sell to the Underwriters (the "Firm Shares").  It is also understood that if
the aggregate number of Firm Shares to be sold by the Selling Stockholder to the
Underwriters pursuant to the Underwriting Agreement shall be decreased, the
number of Firm Shares to be sold by the undersigned pursuant to the Underwrit-

<PAGE>

ing Agreement may be adjusted in accordance with Paragraph l(a) below.  The Firm
Shares reflecting such adjustment, if any, to be sold by the undersigned
pursuant to the Underwriting Agreement are herein referred to collectively as
the "Shares."

    Concurrently with the execution and delivery of this Irrevocable Power of
Attorney, the undersigned is also executing and delivering a Letter of
Transmittal and Custody Agreement (the "Custody Agreement") pursuant to which
the undersigned is depositing with American Stock Transfer & Trust Company, New
York, New York, as custodian (the "Custodian"), some or all of the following:
(i) a certificate or certificates (the "Stock Certificate(s)"), in negotiable
and deliverable form (with signatures guaranteed, along with a duly executed
stock power(s), in blank, bearing the signature of the undersigned so
guaranteed), (ii) a warrant certificate or certificates (the "Warrant
Certificate(s)"), (iii) a stock option agreement (the "Stock Option
Agreement(s)") and (iv) a copy of a notice of exercise (in the case of warrants,
such notice of exercise to be in the form attached to the applicable Warrant
Certificate or warrant agreement) and an accompanying letter of direction by the
Company with respect to the options (the "Options") or warrants (the "Warrants")
to purchase the number of shares of Common Stock set forth on Schedule I
attached to the Custody Agreement, together with stock powers duly endorsed in
blank by the undersigned (with signatures guaranteed as described above) and
with such other documents and requisites as may be necessary to place the
certificates for Common Stock issuable upon the exercise of the Options or the
Warrants in fully negotiable form, representing the number of shares of Common
Stock, (or, in the case of the Warrant Certificate(s) and the Stock Option
Agreement(s), the right to purchase such number of shares of Common Stock) as
set forth on Schedule I to the Custody Agreement.  The Stock Certificate(s) and
the Warrant Certificate(s) are referred to collectively herein as the
"Certificate(s)."  The number of shares of Common Stock  represented by the
Stock Certificate(s), when added to the number of shares of Common Stock to be
issued upon exercise of the Options and/or Warrants, as the case may be, is
greater than or equal to the number of Shares.

    1.   APPOINTMENT OF ATTORNEY-IN-FACT.  In connection with the foregoing,
and intending to be legally bound, the undersigned hereby irrevocably makes,
constitutes and appoints Peter P. Gombrich and Jude Augustine and each of them,
the attorneys-in-fact and agents (individually, an "Attorney" and collectively,
the "Attorneys") of the undersigned effective as of the date of the execution
hereof by the undersigned, each Attorney with full power and authority to act
together or alone, in such Attorney's sole and complete discretion, including
full


                                          2

<PAGE>

power of substitution, in the name of, and for and on behalf of, the undersigned
with respect to all matters arising in connection with the sale of the Shares by
the undersigned, including, but not limited to, the power and authority to take
any and all of the following actions:

         a.   to sell, assign and deliver to the Underwriters pursuant to the
    Underwriting Agreement the Shares or such lesser number of shares of Common
    Stock as the Attorneys, or either of them, shall determine, at a purchase
    price per share to be paid by the Underwriters, which shall be the same
    price per share to be paid by the Underwriters (such price to be determined
    by negotiations between the Company and the Underwriters) to each of the
    other Selling Stockholders and to the Company for shares issued and sold in
    connection with the Underwriting Agreement; and on such other terms as the
    Attorneys, or either of them, may, in their sole discretion determine;

         b.    for the purpose of effecting such sale, to make, execute,
    deliver and perform the undersigned's obligations and make the
    undersigned's representations and warranties under the Underwriting
    Agreement (which is substantially in the form of the draft underwriting
    agreement included in the Registration Statement to be delivered to the
    undersigned) among the Company, the Attorneys on behalf of the Selling
    Stockholders, and the Underwriters, containing such additions or changes in
    the terms, provisions and conditions as the Attorneys, or either of them,
    shall determine including, subject to the limitation set forth in Paragraph
    l(a) of this Irrevocable Power of Attorney, the purchase price per share to
    be paid by the Underwriters, the provision of representations and
    warranties by the Selling Stockholders, and any additions or changes in the
    terms, provisions and conditions relating to the public offering of shares
    by the Underwriters;

         c.   to give such orders and instructions to the Custodian as the
    Attorneys, or either of them, in their sole discretion, shall determine,
    with respect to (i) in the case of Options or Warrants, the issuance of
    shares of Common Stock and any related certificates issuable upon the
    exercise thereof, of which any certificates representing shares of Common
    Stock intended to be sold pursuant to the Underwriting Agreement by the
    undersigned shall be without legends restricting transfer or disposition of
    the Shares, (ii) the transfer on the books of the Company of the Shares to
    effect the sale thereof (including giving the names in which new certifi-



                                          3

<PAGE>

    cates for such shares are to be issued and the denominations thereof), 
    (iii) the delivery to or for the account of the Underwriters of certificates
    for such Shares against receipt by the Custodian of the purchase price to 
    be paid therefor, (iv) the payment by the Custodian out of the proceeds of 
    such sale of that portion of all expenses of the offer, sale and delivery 
    of such shares which is to be borne by the undersigned in connection with 
    such offer, sale and delivery, (v) in the case of Options or Warrants, the 
    payment to the Company out of the proceeds of such sale of an amount equal 
    to the exercise price and any withholding taxes payable in connection with 
    the exercise of such options, (vi) the remittance to the undersigned of the 
    balance of the proceeds from such sale, and (vii) the return to the 
    undersigned of new certificates (with a legend or legends restricting the 
    transfer or disposition of such shares, if applicable) representing that 
    number of shares of Common Stock, if any, represented by the certificates 
    (and/or the option exercise notice) deposited with the Custodian which are 
    in excess of the number of Shares sold by the undersigned to the 
    Underwriters;

         d.   to reduce the number of Shares to be sold to the Underwriters (if
    required by the Underwriters), to incur such selling expenses on behalf of
    the undersigned as the Attorneys, or either of them, in their sole
    discretion shall consider necessary for the aforesaid sale of the Shares to
    the Underwriters and to provide in accordance with the Underwriting
    Agreement and this Irrevocable Power of Attorney for the payment of such
    expenses;

         e.   to retain Graham & James LLP as legal counsel in connection with
    any and all matters referred to in this Irrevocable Power of Attorney
    (Graham & James LLP is counsel for the Company);

         f.   to instruct the Custodian as to the number of Shares to be sold
    by each Selling Stockholder;

         g.    to make, acknowledge, verify, and file on behalf of the
    undersigned applications, consents to service of process and such other
    undertakings or reports as may be required by law with state commissioners
    or officers administering state securities laws;


                                          4

<PAGE>

         h.   if necessary, to endorse (in blank or otherwise) on behalf of the
    undersigned the Certificate(s) to be sold by the undersigned, or a stock
    power or powers attached to such Certificate(s);

         i.   to certify to the Underwriters on behalf of the undersigned the
    accuracy of the matters set forth in Paragraph 2 of this Irrevocable Power
    of Attorney; and

         j.   to make, exchange, acknowledge and deliver all such other
    contracts, orders, receipts, notices, requests, instructions, certificates,
    letters and other writings, including requests for the acceleration of the
    effectiveness of the Registration Statement, and other communications to
    the Commission and amendments to the Underwriting Agreement and the Custody
    Agreement, and in general to do all things and to take all actions, which
    the Attorneys, or either of them, in their sole discretion, may consider
    necessary or  proper in connection with or to carry out the aforesaid sale
    of shares to the Underwriters and the Public Offering;

as fully as could the undersigned if personally present and acting.

    2.   The undersigned agrees to deliver to the Attorneys such documentation
as the Attorneys, the Company, the Selling Stockholders or the Underwriters or
any of their respective counsel may reasonably request in order to effectuate
any of the provisions hereof or of the Underwriting Agreement, all of the
foregoing to be in form and substance satisfactory in all respects to the
Attorneys, the Company or the Underwriters or their respective counsel.

    3.   Upon execution and delivery of the Underwriting Agreement by the
Attorneys on behalf of the undersigned, the undersigned agrees to be bound by
and to perform each of the covenants and agreements of the undersigned as a
Selling Stockholder in the Underwriting Agreement.

    4.   Upon execution and delivery of the Underwriting Agreement by the
Attorneys on behalf of the undersigned, the undersigned agrees to indemnify and
hold harmless the Underwriters, the Company, each of its directors and each of
its officers who sign the Registration Statement, and each other person
specified in Section 9 of the Underwriting Agreement, to the full extent
provided in Section 9 of the Underwriting Agreement.


                                          5

<PAGE>

    5.   REPRESENTATIONS AND WARRANTIES.  The undersigned hereby represents and
warrants that each of the representations and warranties of the undersigned
contained in the Custody Agreement and [attached hereto and intended to be
included in the Underwriting Agreement] is true as of the date of this
Irrevocable Power of Attorney and will remain true through the Closing Date (as
defined in the Underwriting Agreement) and that the undersigned has complied
with all agreements and satisfied all conditions to be performed or satisfied
by, on or through such Closing Date.  Such representations and warranties are
made by the undersigned for the benefit of, and may be relied upon by, the other
Selling Stockholders, the Attorneys, or any of them, the Company, the
Underwriters and their Representatives, agents and counsel (including Skadden,
Arps, Slate, Meagher & Flom), the Custodian and Graham & James LLP, counsel to
the Company.

    6.   LIABILITY OF ATTORNEYS.  The undersigned agrees that the Attorneys, or
either of them, will not be liable, responsible or accountable in damages or
otherwise to the undersigned for any acts performed or failed to be performed by
the Attorneys, or either of them, in good faith and within the scope of this
Agreement; PROVIDED, HOWEVER, that an Attorney may be liable to the undersigned
for any act performed or failed to be performed to the extent and only to the
extent attributable to gross negligence, willful misconduct or fraud by such
Attorney.

    7.   IRREVOCABILITY OF THIS POWER OF ATTORNEY.  This Irrevocable Power of
Attorney and all authority conferred by it are granted and conferred subject to
the interests of the Attorneys, the Underwriters, the Company and the other
Selling Stockholders who may become parties to the Underwriting Agreement and in
consideration of those interests, and for the purpose of completing the
transactions contemplated by the Underwriting Agreement and this Irrevocable
Power of Attorney.  As a result, this Irrevocable Power of Attorney and all
authority conferred by it is an agency coupled with an interest and therefore
shall be irrevocable and shall not be terminated by the undersigned or by
operation of law, whether by the death or incapacity of the undersigned, the
termination of any trust or estate, the dissolution or liquidation of any
corporation or partnership or the occurrence of any other event.  If the
undersigned should die or become incapacitated, if any trust or estate should be
terminated, if any corporation or partnership should be dissolved or liquidated
or if any other such event shall occur before the delivery of the Shares to be
sold by the undersigned under the Underwriting Agreement and this Irrevocable
Power of Attorney, Certificates (and an exercise notice, if applicable) for such
Shares will be delivered by or on


                                          6

<PAGE>

behalf of the undersigned in accordance with the terms and conditions of the
Underwriting Agreement and the Custody Agreement executed by the undersigned,
and any action taken by the Attorneys, or either of them, pursuant to this
Irrevocable Power of Attorney shall be as valid as if such death, incapacity,
termination, dissolution, liquidation or other event had not occurred,
regardless of whether or not the Custodian, the Attorneys, or either of them,
shall have received notice of such death, incapacity, termination, dissolution,
liquidation or other event.   Notwithstanding the foregoing, if the Underwriting
Agreement is not entered into prior to September 30, 1996, then from and after
such date the undersigned will have the power to revoke all authority conferred
by this Irrevocable Power of Attorney by giving written notice to each of the
Attorneys, in care of the Custodian, that this Irrevocable Power of Attorney has
been terminated; subject, however, to all lawful action done or performed by the
Attorneys, or either of them, pursuant to this Irrevocable Power of Attorney
prior to the actual receipt of such notice.

    8.   SUBSTITUTION OF ATTORNEYS.  Each of the Attorneys shall have the full
power to make and substitute any attorney-in-fact in his or her place and stead,
and the undersigned hereby ratifies and confirms all that each of said Attorneys
or substitutes shall do by virtue of these presents.  All actions hereunder may
be taken by any one of said Attorneys, or his or her respective substitute or
substitutes.

    9.   The undersigned ratifies all that the Attorneys or either of them
shall do pursuant to paragraphs 1 and 2 of this Irrevocable Power of Attorney.

    10.  INDEMNIFICATION OF ATTORNEYS.  The undersigned indemnifies and holds
each Attorney, jointly and severally, free and harmless from and against any and
all losses, damages, attorneys' fees, expenses or liabilities of any nature
which such Attorney may sustain as a result of any action taken or omitted to be
taken in good faith hereunder by such Attorney, except to the extent
attributable to gross negligence, willful misconduct or fraud by such Attorney.

    11.  GOVERNING LAW.  This Irrevocable Power of Attorney will be governed by
the laws of the State of Illinois as applied to transactions taking place wholly
within Illinois between Illinois residents.


                                          7

<PAGE>

    12.  ACTION WITH RESPECT TO OTHER SELLING STOCKHOLDERS.  It is understood
and agreed that any Attorney may, without breaching any express or implied
obligation to the undersigned hereunder, release, amend or modify any other
power of attorney granted by any other Selling Stockholder.


                                          8

<PAGE>

    IN WITNESS WHEREOF, the undersigned has executed this Irrevocable Power of
Attorney of Selling Stockholder this __________, 1996.

Number of Firm Shares of Common Stock
to be Sold to the Underwriters
(subject to adjustment by the Attorneys
in accordance with Paragraph 1(a) hereof):

__________       Firm Shares      Selling Stockholder(s):


                                  --------------------------------------------
                                  Printed Name(s)

                                  --------------------------------------------

                                  --------------------------------------------
                                  Signature(s)

                                  To be signed EXACTLY as name appears on
                                  deposited Certificate(s) (or, if only an
                                  Option exercise notice is deposited, as name
                                  appears on such exercise notice).

                                  Signature guaranteed by:


                                  By:
                                      ------------------------------------------

                                  (NOTE: The signature(s) must be MEDALLION
                                  GUARANTEED by a national or state bank or
                                  trust company, or by a member firm of the
                                  National Association of Securities Dealers,
                                  Inc., or by a financial institution that is
                                  a participant in the Security Transfer
                                  Agents Medallion Program or the New York
                                  Stock Exchange Medallion Signature Guarantee
                                  Program.   NOTARIZATION BY A NOTARY PUBLIC
                                  IS NOT ACCEPTABLE.)

Witnessed by:

                                          9

<PAGE>
                                                                 Exhibit 10.31

                               O.E.M. SUPPLY AGREEMENT



                                       BETWEEN


                                OLYMPUS AMERICA INC.,
                            PRECISION INSTRUMENT DIVISION

                                         AND


                             ACCUMED INTERNATIONAL, INC.








                                     May 31, 1996
 

<PAGE>
                                           
                               O.E.M. SUPPLY AGREEMENT


    AGREEMENT made as of the 31st day of May, 1996, by and between ACCUMED
INTERNATIONAL, INC., a company organized and existing under the laws of Delaware
and having its principal office at 920 N. Franklin Street, Suite 402, Chicago,
Illinois 60610 ("VENDOR"), and OLYMPUS AMERICA INC.-Precision Instrument
Division, a company organized and existing under the laws of New York and having
its principal office at Two Corporate Center Drive, Melville, New York 11747-
3157. ("OLYMPUS")

                                 W I T N E S S E T H:

    WHEREAS, VENDOR designs and manufactures IN VITRO diagnostic products for
hospitals, physicians, and clinical laboratories; and 

    WHEREAS, OLYMPUS is a recognized distributor and supplier of medical and
scientific equipment within the Territory (as defined in Section 1.16); and

    WHEREAS, OLYMPUS desires to engage in the purchase of the Products (as
defined in Section 1.11) from VENDOR for the purpose of resale within the
Territory; and 

    WHEREAS, VENDOR IS willing to sell the products to OLYMPUS on an exclusive
basis within and for resale in the territory and on the terms and conditions
hereinafter set forth;

    NOW, THEREFORE, in consideration of the mutual covenants and
promises hereinafter set forth, the parties agree as follows:

                              ARTICLE 1.   DEFINITIONS.

    1.1  "Accessories" shall mean the accessories to the systems, a list and
description of which is contained in SCHEDULE 1.11 attached hereto (which
Schedule may be amended from time to time and at any time upon mutual written
agreement) .

    1.2  "Affiliate" shall mean a corporation or, other entity that controls,
is controlled by or is under common control with, the designated party.
"Control" shall mean the ownership, directly or indirectly, through one or more
intermediaries, of at least 49% of the shares of stock entitled to vote for the
election of directors in the case of a corporation (or comparable officers or
representatives of the particular entity), or at least 49% of the interest in
profits in the case of a business entity other than a corporation, except that
in any country of incorporation or registration where the maximum permitted by
law is less than 49%, such lower maximum permitted percent shall be substituted.

<PAGE>

    1.3  "Agreement" shall mean this O.E.M. Supply Agreement, including the
Recitals, Schedules, and Exhibits hereto, as it may be amended or supplemented
from time to time in accordance with its terms.

    1.4  "Agreement Term" shall have the meaning set forth in Section 7.1.

    1.5  "Business Day" shall mean any day which is not a Saturday, Sunday, or
bank holiday in the State of New York.

    1.6  "Consumables" shall mean the consumables of the Systems, a list and
description of which is contained in SCHEDULE 1.1 attached hereto (which
Schedule may be amended from time to time and at any time upon mutual written
agreement).

    1.7  "Effective Date" shall mean the date first above written.

    1.8  "FCC" shall mean the United States Federal Communications Commission.

    1.9  "FDA" shall mean the United States Food and Drug Administration.

    1.10 "Intellectual Property" shall have the meaning set forth in Section
5.6.

    1.11 "Products" shall mean, collectively, the Systems, the Accessories
thereto and Consumables thereof; the user and calibration instruction manuals,
user and field service guides and the like; and any Product Changes.

    1.12 "Product Changes" shall mean any material changes, improvements,
alterations, modifications, upgrades, new generations, and substitutions to or
of the Products or the Products' labelling, relating to the form, fit, function,
or appearance of the Products.

    1.13 "Quarterly Minimum(s)" shall have the meaning set forth in Section
4.1.

    1.14 "Recall" shall have the meaning set forth in Section 3.9.

    1.15 "Systems" shall mean the AcCell-TM- systems, a list and description of
which is contained in SCHEDULE 1.11 attached hereto (which Schedule may be
amended from time to time and at any time upon mutual written agreement).

                                          2

<PAGE>

    1.16 "Territory" shall mean the Western Hemisphere and Alaska and Hawaii.

    1.17 "UL" shall mean Underwriters' Laboratories.

    1.18 "Yearly Forecast(s)" shall have the meaning set forth in Section 4.1.

    1.19 THE TERM "SALE" OR "RESALE" (IN ANY TENSE OR FORM), WHENEVER USED IN
THIS AGREEMENT, SHALL MEAN LICENSE IN THE CASE OF SOFTWARE PRODUCTS.


                            ARTICLE 2. PURCHASE AND SALE.

    2.1  GENERAL.  (a) During the Agreement Term, VENDOR agrees to sell the 
Products exclusively to OLYMPUS and OLYMPUS may purchase the Products from 
VENDOR (only if OLYMPUS submits a purchase order therefor) in accordance with 
and subject to the terms and conditions of this Agreement. Notwithstanding 
the foregoing, VENDOR may solicit purchases of the Systems within the 
Territory in accordance with the following guidelines:

         (i)       VENDOR shall inform OLYMPUS prior to each solicitation
                   effort and will fully involve OLYMPUS, the pertinent OLYMPUS
                   dealer, or other OLYMPUS representative in all such
                   solicitation and related ensuing activities.

         (ii)      All quotations and purchase orders shall be generated by and
                   submitted to (as the case may be) OLYMPUS.

         (iii)     All sales generated as a result of VENDOR'S solicitation
                   efforts will be treated as OLYMPUS sales for all purposes,
                   including but not limited to satisfaction of Yearly
                   Forecasts and Quarterly Minimums.

         (iv)      Within the Territory, VENDOR shall promote only OLYMPUS
                   microscopes in conjunction with all Systems to be sold with
                   an integrated microscope.

         (v)       VENDOR shall receive a fee of (x) [     *    ] of the sale
                   price to the end-user for each Model 2000 System, bar code
                   reader, and automated dotter sale, and (y) [     *     ] of
                   the sale price to the end-user for each Model 2001 System,
                   bar code reader, and automated dotter sale; generated
                   substantially as a result of VENDOR'S




*PORTIONS OF THIS EXHIBIT HAVE BEEN OMITTED AND FILED SEPARATELY WITH THE 
SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A CONFIDENTIAL TREATMENT REQUEST.

                                          3

<PAGE>


                   solicitation efforts and related ensuing activities,
                   including but not limited to demonstration, installation,
                   and initial end-user training, each as requested by OLYMPUS
                   in OLYMPUS'S sole and absolute discretion.

Except as set forth in this Section, VENDOR shall not promote, market, sell,
license, or distribute (directly or indirectly) the Products or products
substantially similar to or competitive with the Products within the Territory.

         (B)  OLYMPUS shall not (by itself or with others) market, sell, or
distribute products within the Territory that are competitive with the Products
("Competitive Products"), PROVIDED that (i) the Products are competitive with
respect to price, design, features, and quality to the Competitive Products, and
(ii) VENDOR is not in default under this Agreement.

    2.2  LICENSE.  VENDOR hereby unconditionally and irrevocably grants to
OLYMPUS and its Affiliates a royalty-free, fully paid-up exclusive right and
license under VENDOR's Intellectual Property, to use, market, sell, rent, lease,
grant sublicenses to end-users, and/or otherwise dispose of (or have others do
any of the foregoing on OLYMPUS's behalf) the Products within the Territory. 
OLYMPUS shall determine all terms and conditions of sale to its end-users and
dealers (including but not limited to Government Services Administration and
other private, governmental, and commercial entities), including but not limited
to prices. OLYMPUS shall not (i) transfer the Products to an Affiliate or (ii)
sell the Products outside of the Territory or authorize its (sub)distributors or
(sub)dealers; to sell the Products outside of the Territory.  In the event a
(sub)distributor or (sub)dealer has sold the Products outside of the Territory
and refuses to cease such activity, OLYMPUS must, if legally permitted,
terminate such (sub)distributor's or (sub) dealer's right to sell the Products.

    2.3  PRODUCT DELIVERY. All OLYMPUS purchase orders shall be for delivery in
45 days and shall be deemed accepted by VENDOR unless OLYMPUS is notified to the
contrary in writing by VENDOR within ten Business Days of VENDOR'S receipt of a
written purchase order from OLYMPUS.  Delivery shall be "F.O.B. destination" and
shall be made by VENDOR to OLYMPUS's facility in Woodbury, New York, or other
OLYMPUS, OLYMPUS dealer, or OLYMPUS distributor facility in the Territory, as
designated by OLYMPUS.  OLYMPUS may cancel any purchase order provided that such
cancellation is made in writing no later than 15 days after VENDOR's receipt of
such purchase order.  In addition, OLYMPUS may cancel a purchase order if
delivery of such purchase order is more than 30 days past due.

                                          4

<PAGE>

    2.4  CONDITIONS OF SALE.  The order terms and conditions set forth in this
Agreement shall govern all orders made under this Agreement, and any standard
printed forms or other documents of either party (such as those contained on a
quotation, proposal, purchase order, or invoice) shall have no force or effect
with respect to such orders unless such form or document specifically states
that it is an amendment to this Agreement and is signed by an authorized
signatory of each party.  Title to and risk of loss for the Products sold to
OLYMPUS shall pass upon the receipt of the Products by OLYMPUS (or the OLYMPUS
dealer or OLYMPUS distributor, as the case may be).  Notwithstanding anything
contained in this Agreement to the contrary, (i) OLYMPUS's purchase order shall
fix Product quantities, reference applicable pricing, and set destinations and
delivery schedules, and (ii) OLYMPUS shall have no obligation to purchase until
it submits a purchase order to VENDOR.

    2.5  INSPECTION RIGHTS.
         (a)  PROCEDURE. OLYMPUS and/or its designees shall have the right, at
its expense, to count and conduct an inspection and test of the shipped Products
for a period of 30 days following receipt of such Products at the designated
incoming delivery point or facility.  Within 30 days of the Effective Date,
VENDOR and OLYMPUS shall develop mutually agreed upon inspection and test
procedures to be used hereunder.  Upon completion, such inspection and test
procedures shall become a part of this Agreement as EXHIBIT A hereof.  If any
Product fails such inspection and testing, VENDOR agrees to accept and pay the
shipping costs for (i) the return of such defective Product to VENDOR and (ii)
the delivery of the repaired or replacement Product to OLYMPUS or its designee,
PROVIDED that the defect is not the result of OLYMPUS negligence or misuse such
as the failure to properly store the Product while in OLYMPUS's possession. 
VENDOR shall, at OLYMPUS'S option, promptly, replace any such defective Product
without charge or refund the purchase price thereof in full.  If OLYMPUS fails
to reject received Products within the aforementioned 30-day inspection period,
such Products shall be deemed accepted.  Inspection, testing, acceptance, or use
of the Products, or failure to do the same, on any occasion shall not affect
VENDOR's obligation under any warranty contained herein or any other rights or
remedies available to OLYMPUS whether at law or in equity, and such warranties,
rights, and remedies shall survive such inspection, testing, acceptance, and
use.

         (b)  QUANTITY DEFICIENCY. If OLYMPUS (or the OLYMPUS dealer or OLYMPUS
distributor, as the case may be) finds any quantity deficiency in the Product
units received, OLYMPUS may, at its option, (i) require VENDOR to immediately
deliver the difference by air freight at VENDOR's expense, or (ii) reduce the
purchase amount specified in the related purchase order accordingly.

                                          5

<PAGE>

         (c)  OVERSHIPMENT.  If OLYMPUS (or the OLYMPUS dealer or OLYMPUS
distributor, as the case may be) finds an overshipment of Product units, it/they
may store or return the excess Product units to VENDOR, both at VENDOR's risk
and expense.

    2.6  PRICE.
         (a)  PRICING. For the duration of the Agreement Term, the Products'
prices shall be as set forth in SCHEDULE 1.11 attached hereto.  Notwithstanding
the foregoing, if OLYMPUS accepts a Product Change in accordance with Section
3.3 and such Product Change generates an increase in the cost of the relevant
Product, such increase may generate an increase in the price of the Product to
OLYMPUS, PROVIDED that such price increase is acceptable to OLYMPUS in its sole
and absolute discretion.  Failure by OLYMPUS and VENDOR to agree upon a price
increase due to a Product Change shall constitute rejection of such Product
Change regardless of any earlier acceptance by OLYMPUS.  In the event VENDOR is
30 days past due in delivering the Products (in accordance with Section 2.3) the
purchase price for such "late" Products shall be reduced by [       *       ] 
for each additional month that such delivery is overdue. Instruction manuals,
user guides, and the like shall be included in the prices reflected in SCHEDULE
1.11.

         (b)  PAYMENT.  OLYMPUS shall pay for all Products accepted by it no
later than 30 days from the date of receipt by OLYMPUS of VENDOR'S invoice
corresponding to the Products received.  Notwithstanding the foregoing, if
OLYMPUS pays for Product within 15 days of receipt by OLYMPUS of VENDOR's
corresponding invoice, OLYMPUS shall receive a [    *    ] discount off of such
invoice amount.


                           ARTICLE 3. OBLIGATIONS OF VENDOR

    3.1  APPROVALS AND CLEARANCES.  VENDOR shall ensure that no Product is sold
to OLYMPUS or end-users before all required governmental or private approvals
and clearances have been obtained, including without limitation (i) all FDA and
FCC approvals and clearances and (ii) UL standards applicable to laboratory
equipment and power supplies; EXCEPT, that the initial 25 System units to be
purchased on the Effective Date will be so approved and marked (at VENDOR'S
expense) within 60 days of the Effective Date.

    3.2  PACKING AND MARKING: TRADEMARKS.   (a) VENDOR shall pack and mark the
Products in accordance with OLYMPUS's instructions.  VENDOR shall permanently
affix OLYMPUS's serial number, trade name, trademark, colors, and logo (the
"Authorized Trademarks") on all Product packaging, printed materials, labels,
and tags in accordance with OLYMPUS's instructions, which instructions shall be
provided to VENDOR within 45 days after the Effective Date.




*PORTIONS OF THIS EXHIBIT HAVE BEEN OMITTED AND FILED SEPARATELY WITH THE 
SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A CONFIDENTIAL TREATMENT REQUEST.

                                          6

<PAGE>

Upon termination or expiration of this Agreement, VENDOR shall (i) not sell any
Product which is packaged in materials containing the Authorized Trademarks and
(ii) immediately cease any use of the Authorized Trademarks.  Except as
expressly set forth herein, VENDOR shall not have any right to use nor shall
VENDOR acquire any right, title, license, or other interest in the OLYMPUS name,
or any trade name, trademark, or logo belonging to OLYMPUS.

         (b)  Any use by VENDOR of the Authorized Trademarks or any trade,
name, trademark, or logo which is similar to an  Authorized Trademark, and the
goodwill of any business associated with such trade names, trademarks, or logos,
shall inure to the benefit of OLYMPUS.

         (c)  During the Agreement Term, VENDOR shall not apply VENDOR's or any
third party's name, trademark, or logo to the Products or to any packaging,
printed materials, labels, tags, or nameplates provided with the Products,
EXCEPT (i) to the extent to which VENDOR may by law be required to identify
itself as the manufacturer or supplier thereof and (ii) VENDOR'S trademark
AcCell-TM- will appear on the Systems on the facing front plate of the stage.

    3.3  PRODUCT CHANGES.  VENDOR shall give OLYMPUS 60 days' prior written
notice of any proposed Product Changes, which OLYMPUS may accept or reject, but
acceptance may not be unreasonably withheld (see also Section 2.6(a)). Examples
of issues that would be a reasonable basis for non-acceptance or rejection shall
include, without limitation, Product marketability, performance, function, and
pricing. If OLYMPUS chooses to reject a Product Change and VENDOR nevertheless
proceeds to implement such Product Change, OLYMPUS may, in addition to all other
rights and remedies at law or in equity or otherwise, terminate this Agreement
and all pending purchase orders pursuant to Section 7.2(c). If OLYMPUS accepts a
Product Change, VENDOR shall, prior to implementation, promptly (i) obtain all
approvals and clearances required to manufacture the Product and sell the
Product (as changed, modified, or added) within the Territory and (ii) document
and validate such accepted Product Changes to the complete satisfaction of
OLYMPUS.  No Product Change shall be effective unless and until it is accepted
for sale by OLYMPUS.

    3.4  TECHNICAL ASSISTANCE & SUPPORT.  VENDOR shall furnish to OLYMPUS,
without additional charge, beginning on the effective Date and for the duration
of the Agreement Term and for a period of three years thereafter, the following
technical assistance and support:

                                          7

<PAGE>

         (a)  DOCUMENTATION.  All technical information, manuals, schematics,
parts lists, flow diagrams, and other documentation and data (in both printed
and electronic media formats) necessary to inventory, market, sell, and provide
field service for the Products within the Territory. Such materials shall be
consistent with similar information furnished to other distributors and
resellers of the Products and/or similar products manufactured by VENDOR. 
VENDOR hereby grants to OLYMPUS a fully-paid license for the Agreement Term to
copy or otherwise reproduce all or portions of VENDOR's brochures, or to
incorporate portions of VENDOR-copyrighted material in Product brochures or
advertising material composed by OLYMPUS, PROVIDED that OLYMPUS shall submit
such materials composed by OLYMPUS which incorporate such VENDOR-copyrighted
material to VENDOR for prior approval, which approval shall not be unreasonably
withheld or delayed.  Such reproduction will be subject to all applicable
copyright laws.  In addition to the foregoing, VENDOR shall furnish to OLYMPUS
master copies (in both printed and electronic media formats) of field service
manuals and troubleshooting guides with respect to the Products which OLYMPUS
may print and use, and furnish to VENDOR for VENDOR's use in accordance with
this Agreement.  Alternatively, at OLYMPUS's option, VENDOR may print such
Product manuals and guides and sell them to OLYMPUS, at VENDOR's cost, for
OLYMPUS's use.

         (b)  TELEPHONE SUPPORT. On-going telephone support to OLYMPUS on
Business Days, via a toll-free telephone number, between 8 a.m. and 6 p.m.
(Central).  Such telephone support shall respond to all requests for information
or other technical support regarding Product use, maintenance, repair, storage,
handling, and shipping.

    3.5  INSURANCE.  Commencing on the first date of Product delivery until the
expiration of the most remote statute of limitations, VENDOR shall maintain
general liability insurance with an insurance company in the amount of
[     *      ] naming OLYMPUS as an additional insured, for any death or bodily
injury or property damage resulting from the manufacture, design, testing, sale,
or use of the Products.  Copies of all such policies and any certificates or
notices thereunder shall be forwarded to OLYMPUS along with prior notice of
termination or cancellation of such policies.

    3.6  AUDITS.  OLYMPUS shall have the right to perform a complete audit of
the development, manufacture, and packaging of the Products (including but not
limited to the pertinent facilities and Quality Assurance System(s)) during
normal business hours and upon seven days prior notice to VENDOR.  The parties
will cooperate with each other to arrange such visits at mutually convenient
times.




*PORTIONS OF THIS EXHIBIT HAVE BEEN OMITTED AND FILED SEPARATELY WITH THE 
SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A CONFIDENTIAL TREATMENT REQUEST.

                                          8

<PAGE>

    3.7  COMPLAINTS. In the event OLYMPUS cannot resolve end-user complaints
regarding the Products, OLYMPUS shall forward such complaints to VENDOR and
VENDOR shall conduct a complete and documented investigation and shall fully
resolve such complaints to OLYMPUS's complete satisfaction.  All such complaint
investigations shall be performed and completed promptly but in no event later
than 30 days from receipt of the complaint by VENDOR.  If as a result of
VENDOR's investigation a Product Change is necessary, VENDOR will perform,
document, and validate such Product Change in accordance with this Agreement, to
OLYMPUS's complete satisfaction and at no charge to OLYMPUS.  OLYMPUS shall
have the right to review and approve all changes or corrective actions resulting
from a complaint investigation prior to implementation.  VENDOR shall notify
OLYMPUS immediately of any claims that it receives of Product defects.

    3.8  SPECIAL INVESTIGATIONS; INQUIRIES.  If any government or other
regulatory authorities or private standards board in the Territory require any
investigations to be performed on or with respect to the Products, and VENDOR
has not performed such investigations or if, for any reason, such authorities
will not accept the results of VENDOR's investigations, then VENDOR shall use
its best efforts in promptly undertaking and completing such investigations. 
VENDOR agrees to notify OLYMPUS of any formal or informal inquiries relating to
the Products by the FCC or any other regulatory agency, or any state, province,
region, district, and/or Federal government.

    3.9  RECALLS.  In the event that any Product defect or regulatory or
governmental action requires a Product's recall, destruction, withholding from
the market, or other action (a "Recall"), VENDOR shall bear all costs and
expenses of such Recall.  OLYMPUS shall reasonably assist VENDOR, at VENDOR's
cost and expense, in carrying out any such Recall.  OLYMPUS shall bear the costs
and expenses of a Recall if such Recall is the direct result of any act or
omission to act attributable solely to OLYMPUS.  If a Recall is the direct
result of acts or omissions to act attributable to both VENDOR and OLYMPUS, or
should it prove impossible to assign fault for such Recall, VENDOR and OLYMPUS
shall share the costs and expenses of such Recall equally.

    3.10 REPLACEMENT & REPAIR PARTS: ACCESSORIES & CONSUMABLES.
         (a) During the Agreement Term and for a period of five years
thereafter, VENDOR agrees to offer for sale to OLYMPUS all replacement and
repair parts for the Systems, and all Accessories and Consumables.

         (b) VENDOR agrees that its Accessories and Consumables pricing for 
the five-year period following the Agreement Term shall be, in the aggregate,
no more than 1.3 times the value of the applicable System at the end of the
Agreement Term.  VENDOR

                                          9

<PAGE>

agrees that its replacement and repair parts pricing (during and after the
Agreement Term) shall be, in the aggregate, no more than 1.3 times the value of
the applicable System at the relevant point of the Agreement Term or at the end
of the Agreement Term (as the case may be).

    (c)  In the event VENDOR is unable to supply such Accessories, Consumables,
and replacement and repair parts and VENDOR is unable to obtain another source
of supply for OLYMPUS, then such inability shall be considered noncompliance
with this Section and VENDOR shall, with neither obligation nor charge to
OLYMPUS, provide OLYMPUS with drawings and other documents required to either
manufacture or buy such Accessories, Consumables, and parts and the technical
information or any other rights necessary for OLYMPUS to manufacture or obtain
such Accessories, Consumables, and parts from other sources, together with an
exclusive license to make or have made such Accessories, Consumables, and parts
for the purpose of supporting OLYMPUS's customer base.  The technical
information includes, by example and not by way of limitation (i) manufacturing
drawings and specifications of materials and parts comprising the Accessories,
Consumables, and replacement and repair parts and components; (ii) manufacturing
drawings and specifications covering special tooling and operation thereof;
(iii) a detailed list of all commercially available parts and components
purchased by VENDOR on the open market, disclosing the part number, name and
location of the supplier and price lists for the purchase thereof and (iv) one
complete copy of the source code used in the preparation of any software
licensed or otherwise acquired by OLYMPUS from VENDOR, PROVIDED, HOWEVER, that
such source code may not be changed by OLYMPUS (except to fix software bugs and
deficiencies in the event VENDOR is unable to so fix) and shall remain the
property of VENDOR and shall be separately licensed to OLYMPUS for OLYMPUS's
possession and use exclusively for maintenance of OLYMPUS's end-users.

    3.11 UPDATES AND MINOR UPGRADES. During the Agreement Term and thereafter 
(with respect to Products still under warranty) VENDOR shall provide OLYMPUS 
with Product software fixes, updates, and minor upgrades at no charge to 
OLYMPUS.  Upon expiration of the relevant warranty periods, OLYMPUS will pay 
a software maintenance fee of [  *  ] per annum per each System unit for 
which the end-user elects to purchase software updates and minor upgrades 
(the "Maintenance Fee").  Upon expiration or earlier termination of the 
Agreement Term AND upon expiration of the relevant warranty period, VENDOR 
shall, for a period of five years, provide OLYMPUS with Product software 
updates and upgrades at reasonable mutually agreed-upon prices, EXCEPT that 
if OLYMPUS has paid the Maintenance Fee prior to the and of the Agreement 
Term, VENDOR shall honor such Maintenance Fee for the duration of that year.  
All updates and upgrades shall be validated to OLYMPUS's complete 
satisfaction.




*PORTIONS OF THIS EXHIBIT HAVE BEEN OMITTED AND FILED SEPARATELY WITH THE 
SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A CONFIDENTIAL TREATMENT REQUEST.

                                          10

<PAGE>

    3.12 VENDOR DELIVERABLES. (a) VENDOR shall furnish to OLYMPUS the following
deliverables (which must be ready for delivery to end-users) within the time
frames corresponding thereto:

         (i)       AccuMap-TM- 2000 automated screener (hardware only; related
                   software will be licensed to end-users directly by
                   VENDOR).....[     *     ] from the Effective Date (including
                   software availability from VENDOR);

         (ii)      generic archiver with image capture.....VENDOR's best
                   efforts to furnish within [    *   ] from the date of mutual
                   agreement on detailed specifications

         (iii)     deliverable networking software and hardware for the
                   Systems.....[  *  ] from the Effective Date; and

         (iv)      deliverable interface software for specified Laboratory
                   Information Systems.....[  *  ] after OLYMPUS places an
                   order for same with VENDOR.

Once available, the parties shall negotiate a reasonable price for such
deliverables in good faith and the deliverables will be deemed "Products" 
hereunder, subject in all respects to this Agreement and added to SCHEDULE 1.11
accordingly, EXCEPT for the AccuMap-TM- 2000 software to be licensed directly by
VENDOR to end-users, which software will only be deemed a "Product" for purposes
of Sections 3.1, 3.5, 3.7, 3.8, 3.9, 3.11, 3.14, 5.5, 5.6, 5.7, 5.8, 5.10, and
Article 8. Notwithstanding anything contained herein to the contrary, if the
parties fail to agree upon prices for the deliverables, then the Quarterly
Minimums and Yearly Forecasts shall no longer be applicable.

    (b) VENDOR shall use its best efforts so that, within 30 months from the
Effective Date, the AccuMap-TM- 3000 automated screener will be FDA-approved and
ready for end-user delivery, directly or indirectly, by VENDOR.  Unless
otherwise decided by VENDOR, OLYMPUS will not be reselling this particular 
product.

    (c)  In the event any one or more of the aforementioned deliverables is not
furnished by VENDOR to OLYMPUS within their corresponding time frames, (i) the
Yearly Forecasts and Quarterly Minimums shall no longer apply and OLYMPUS will
have no further obligations with respect thereto and (ii) the parties shall
endeavor to arrive at a mutually-acceptable solution to resolve the consequences
of such failure to so timely furnish the deliverables.




*PORTIONS OF THIS EXHIBIT HAVE BEEN OMITTED AND FILED SEPARATELY WITH THE 
SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A CONFIDENTIAL TREATMENT REQUEST.

                                          11

<PAGE>

    (d)  Time is of the essence of the performance of VENDOR's obligations
pursuant to this Section 3.12.

    3.13 LOANER SYSTEMS. VENDOR shall maintain a reserve of Systems as a loaner
pool in the following amounts: (a) By end of Year One - [   *  ]; (b) By end of
Year Two - [   *  ]; (c) By end of Year Three - [   *   ]. Loaner Systems shall
be available [      *     ] with respect to Products that are within the
warranty period set forth in Section 5.9(b), and at a [     *     ] charge
thereafter.

    3.14 TRAINING.  During the first eight months of the Agreement Term, VENDOR
shall, upon reasonable prior request, provide OLYMPUS and OLYMPUS's dealers with
full maintenance, service, installation, and application training with respect
to the Products.  In addition, for the duration of the Agreement Term, when
Product Changes are implemented or when Product software updates and upgrades
are provided, the aforementioned training shall be provided to OLYMPUS and
OLYMPUS's dealers therefor.


                          ARTICLE 4. OBLIGATIONS OF OLYMPUS.

    4.1  YEARLY FORECASTS & QUARTERLY MINIMUMS.  During the first, second, and
third years of the Agreement Term, OLYMPUS forecasts that it will purchase an
aggregate of [        *      ] System units, respectively ("Yearly
Forecast(s)").  During the Agreement Term, OLYMPUS shall purchase, at a minimum,
the quarterly quantity of System units ("Quarterly Minimum(s)") in accordance
with SCHEDULE 4.1 attached hereto.  Sales generated as a result of VENDOR's
solicitation efforts shall be included when calculating the OLYMPUS purchases in
any given year or quarter.  In particular, with respect to the first year of the
Agreement Term, VENDOR guarantees that it will generate sales of at least [*]
System units through its own solicitation efforts in accordance with Section
2.1(a). If OLYMPUS exceeds the Yearly Forecast in either or both of years one
and two of the Agreement Term, such excess amount shall be deducted from the
ensuing Agreement Term year's Yearly Forecast.  Similarly, if OLYMPUS exceeds
the Quarterly Minimum in any or all Agreement Term quarters, such excess amount
shall be deducted from the ensuing quarter(s)' Quarterly Minimum(s).  If, at the
end of either the first or second year of the Agreement Term, it is determined
that such year's Yearly Forecast has not been met, the parties shall have 60
days to mutually agree to either (i) amend the Yearly Forecast for the ensuing
Agreement Term year with OLYMPUS retaining its exclusivity hereunder or (ii)
removing the concept of Yearly Forecasts and Quarterly Minimums for the balance
of the Agreement Term and permitting OLYMPUS to market and sell the Products but
on a non-exclusive basis.  Should the parties fail to agree, during such 60-day
period, on either one of the




*PORTIONS OF THIS EXHIBIT HAVE BEEN OMITTED AND FILED SEPARATELY WITH THE 
SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A CONFIDENTIAL TREATMENT REQUEST.

                                          12

<PAGE>

foregoing solutions or a different mutually-acceptable solution, either party
may terminate this Agreement upon 30 days' written notice.  Failure by VENDOR to
send such a notice of termination within 10 days of the end of such 60-day
period shall mean OLYMPUS's rights under Section 2.2 shall continue on an
exclusive basis for at least the ensuing year of the Agreement Term. 
Notwithstanding anything contained herein to the contrary, the Yearly Forecasts
shall not constitute a commitment by OLYMPUS to purchase such Yearly Forecasts
and OLYMPUS shall not have any liability whatsoever to VENDOR in the event such
Yearly Forecasts are not satisfied.

    4.2 SCOPE OF RESPONSIBILITY. During the Agreement Term, OLYMPUS shall, at
its own cost and expense, use commercially reasonable efforts to sell, install,
and provide field service for the Products within the Territory.

    4.3  BI-MONTHLY SALES REPORT.  During the Agreement Term, OLYMPUS shall
submit to VENDOR once every two months a written sales report summarizing sales
activity of the Products for the prior two months.

    4.4  OLYMPUS PRODUCTS.  During the Agreement Term, OLYMPUS shall provide
VENDOR (at no charge to VENDOR) with reasonable technical support (at OLYMPUS's
sole and absolute discretion) with respect to OLYMPUS's microscope products used
by VENDOR in connection with the development of future products not competitive
with OLYMPUS products, PROVIDED OLYMPUS shall have a right of first negotiation
and refusal with respect to such future products.

    4.5  AcCELL-TM-; COPYRIGHT & TRADEMARK NOTICES.  OLYMPUS will use
reasonable efforts to inform VENDOR upon receipt of information regarding (i)
third-party infringement of VENDOR's AcCell-TM- trademark or (ii) VENDOR
infringement of a third party's trademark. In addition, OLYMPUS shall
incorporate into relevant Product documentation and materials, the appropriate
and reasonable copyright and trademark notices provided to OLYMPUS by VENDOR.

    ARTICLE 5. REPRESENTATIONS, COVENANTS, & WARRANTIES OF VENDOR.
VENDOR hereby represents, covenants, and warrants to OLYMPUS, its successors and
permitted assigns that:

    5.1  DUE ORGANIZATION.  VENDOR is a corporation duly organized, validly
existing, and in good standing under the laws of the State of Delaware, and has
the full power and authority to conduct all activities conducted by it under
this Agreement.

                                          13

<PAGE>

    5.2  AUTHORIZATION TO EXECUTE. The person executing this Agreement on
behalf of VENDOR has been duly authorized to do so by all requisite corporate
and other action of VENDOR, and this Agreement has been duly executed and
delivered to OLYMPUS by such person.

    5.3 VALIDITY OF AGREEMENT.  This Agreement is the legal, valid and binding
obligation of VENDOR, enforceable in accordance with its terms.

    5.4  NO CONFLICT. To the knowledge of VENDOR, the execution, delivery and
performance of this Agreement by VENDOR does not and will not conflict with or
result in a breach of any agreement, instrument or understanding, oral or
written, to which VENDOR is a party.  There is no litigation, arbitration or
administrative proceeding pending or threatened which would, in any event,
conflict with or result in a breach of this Agreement or interfere with VENDOR's
obligations hereunder.

    5.5 RIGHT TO USE TECHNOLOGY.  VENDOR has the legally enforceable right to
use all technology contained within or related to the Products, whether patented
or not patented, copyrighted or not copyrighted, and the use of such technology
does not violate any agreement, instrument or understanding, oral or written, to
which VENDOR is a party.

    5.6  WARRANTY OF NON-INFRINGEMENT.  Except for OLYMPUS's rights and
licenses received hereunder, VENDOR is, and for the Agreement Term VENDOR will
be, the sole and exclusive owner of all right, title and interest in and to the
Products.  To the best of VENDOR's knowledge, the Products do not incorporate or
infringe upon any copyright, patent, trademark, service mark, trade mark, trade
secret, idea, process, know-how, development, invention, technology, or other
form of intellectual property (collectively "Intellectual Property") not owned
by or licensed to VENDOR.  VENDOR will promptly notify OLYMPUS of any alleged or
actual infringement by VENDOR of any Intellectual Property relating to the
Products or their manufacture.

    5.7 RIGHT TO SELL FOR RESALE: OBLIGATION TO DELIVER.  VENDOR has the right
to sell the Products to OLYMPUS for resale by OLYMPUS in the Territory.  VENDOR
has and will have the ability to timely deliver all of the Products ordered by
OLYMPUS during the Agreement Term.

    5.8  PRODUCT QUALITY. The Products to be sold and delivered to OLYMPUS and
end-users hereunder shall (i) be merchantable and fit for their particular
purpose, (ii) be new and free from defects in design, materials and workmanship,
and (iii) meet the specifications attached hereto as EXHIBIT B. VENDOR shall
possess a Quality Assurance System that adheres to all applicable laws, rules,
and regulations.

                                          14

<PAGE>

    5.9 REPAIR, REPLACE OR REFUND WARRANTY.  (a) With respect to each Product
unit sold and delivered to OLYMPUS, VENDOR shall, at OLYMPUS's option and at no
charge, replace or repair and render fully operational or fully refund the
purchase price of any defective, damaged, or non-conforming Product unit by
reason of breach of any warranty by VENDOR hereunder, within seven Business Days
after receipt by VENDOR of the defective, damaged, or non-conforming Product
unit.

         (b)  The warranty period for repair, replacement, or refund shall be
twelve months commencing on the date the Product is received by the end-users. 
Written notice of a defect in material or workmanship must be received by VENDOR
within 15 months from the date the Product is received by OLYMPUS's end-users.

         (c)  Notwithstanding the foregoing, in the event of failure by VENDOR
to repair, replace, or refund defective, damaged, or non-conforming Product
units within the seven-day period set forth in subsection 5.9(a), (i) OLYMPUS
may, at its sole and absolute discretion, make such corrections or replace such
Product units and charge VENDOR for the cost incurred by OLYMPUS in doing so and
(ii) VENDOR shall reimburse OLYMPUS for any and all additional costs and
expenses incurred by OLYMPUS as a result of such failure to repair, replace, or
refund, which costs and expenses would not have been incurred if not for such
failure to repair, replace or refund.  The foregoing reimbursement plan shall
continue until the non-conforming Product unit is repaired, replaced or
refunded.  OLYMPUS shall have the right to offset the amounts due VENDOR
hereunder against any and all refund amounts owed to OLYMPUS pursuant to this
Section 5.9 or any other amounts owed to OLYMPUS by VENDOR arising under this
Agreement.

         (d)  Shipping costs incurred by OLYMPUS and risk of loss upon return
of Product units to VENDOR for in-warranty repair, replacement, or refund shall
be borne by VENDOR.  Shipping costs incurred by VENDOR and risk of loss upon
delivery of the in-warranty repaired or replacement Product unit to OLYMPUS or
OLYMPUS's designees shall be borne by VENDOR.

    5.10 COMPLIANCE. VENDOR has ensured and shall continue to ensure that, in
manufacturing and selling the Products, it shall (i) comply with all applicable
laws and regulations, (ii) not engage in any deceptive or misleading practices,
and (iii) obtain and maintain all required governmental and private approvals
and clearances (including without limitation compliance with UL and the FCC).

    5.11 PRICE WARRANTY.  VENDOR warrants that the prices listed in SCHEDULE
1.11 shall be complete and no additional charges of any kind shall be added
without OLYMPUS's prior

                                          15

<PAGE>

written consent.  Examples of additional charges include, but shall not be
limited to, packaging, labeling, taxes, storage, insurance, boxing, or crating.

    5.12 RIGHT OF FIRST NEGOTIATION AND REFUSAL.  VENDOR hereby grants to
OLYMPUS a right of first negotiation and refusal to be the exclusive OEM
purchaser of new VENDOR microscopy products (including but not limited to
telemedicine and telepathology workstations) in the Territory, PROVIDED OLYMPUS
has achieved, to such date, (i) the Quarterly Minimums, with respect to the 
first year of the Agreement Term, or (ii) 75% of the PRO RATA amount of the
relevant Yearly Forecast, with respect to each of the second and third years 
of the Agreement Term.

    5.13 POST-WARRANTY REPAIR SERVICE.  During the Agreement Term and for a
period of three years thereafter, VENDOR shall provide all post-warranty repair
service for the Products at the hourly rates set forth on SCHEDULE 5.13 attached
hereto.

    5.14 OLYMPUS ENHANCEMENTS.  VENDOR agrees to evaluate and use its best 
efforts to incorporate OLYMPUS's recommended design changes and/or enhancements
to the Products ("OLYMPUS Enhancements").  Any increase or reduction in 
VENDOR's manufacturing costs (labor and/or materials) resulting from OLYMPUS 
Enhancements shall be reflected in reasonable price adjustments to the affected 
Products.  Any engineering/design costs and delivery dates for OLYMPUS 
Enhancements shall be quoted to OLYMPUS for its approval and payment.  OLYMPUS 
shall pay such engineering/design costs plus burdened overhead.  Any and all 
Intellectual Property relating to (i) OLYMPUS Enhancements shall be owned by 
OLYMPUS and (ii) Product design changes and/or enhancements conceived jointly 
by OLYMPUS and VENDOR shall be owned by OLYMPUS and VENDOR jointly.  VENDOR 
shall not use the OLYMPUS Enhancements for itself or for any other party for 
any purpose other than the performance of its obligations hereunder.


ARTICLE 6. REPRESENTATIONS, COVENANTS, & WARRANTIES OF OLYMPUS.  OLYMPUS hereby
represents, covenants, and warrants to VENDOR, its successors and permitted
assigns that:

    6.1 DUE ORGANIZATION.  OLYMPUS is a corporation organized and validly
existing under the laws of the State of New York, and has the full power and
authority to conduct all activities conducted by it under this Agreement.

    6.2  AUTHORIZATION TO EXECUTE.  The person executing this Agreement on
behalf of OLYMPUS has been duly authorized to do so by all requisite
corporate and other action of OLYMPUS, and this Agreement has been duly executed
and delivered to VENDOR by such person.

                                          16

<PAGE>

    6.3  VALIDITY OF AGREEMENT.  This Agreement is the legal, valid and binding
obligation of OLYMPUS, enforceable in accordance with its terms.

    6.4  NO CONFLICT.  To the knowledge of OLYMPUS, the execution, delivery and
performance of this Agreement by OLYMPUS does not and will not conflict with or
result in a breach of any agreement, instrument or understanding, oral or
written, to which OLYMPUS is a party.

                          ARTICLE 7. TERMS AND TERMINATION.

    7.1  TERM.  This Agreement shall remain in full force and effect commencing
on the Effective Date and expiring on the third anniversary of such date (the
"Agreement Term") unless earlier terminated pursuant to Section 7.2.
Notwithstanding the foregoing, the Agreement Term may be suspended pursuant to
the provisions of Section 10.1 of this Agreement.

    7.2  EVENTS OF TERMINATION.  This Agreement may be terminated, without
limiting any party's rights to any other remedies:

         (a)  Immediately upon written notice by either party (the "Terminating
Party") to the other party (the "Breaching Party") if:

              (i)       the Breaching Party has not performed or has otherwise
                        breached its obligations (whether material or
                        otherwise) hereunder and if such nonperformance or
                        breach is incapable of cure; or

              (ii)      any proceeding in bankruptcy, reorganization or
                        arrangement for the appointment of a receiver or a
                        trustee to take possession of the Breaching Party's
                        assets or any similar proceeding under the law for
                        relief of creditors shall be instituted by or against
                        the Breaching Party; or

              (iii)     the Breaching Party shall make an assignment for the
                        benefit of its creditors.

         The Breaching Party immediately shall notify the Terminating Party in
         writing of the occurrence of any event of the type described in
         subsections 7.2,(a)(ii) and (iii).

                                          17

<PAGE>

    (b)  By the Terminating Party upon the expiration of 30 days (or such
         additional period as the Terminating Party may authorize) after the
         Breaching Party's receipt of written notice of its breach or
         nonperformance of its obligations (whether material or otherwise)
         hereunder and if such breach or nonperformance is capable of cure and
         has not been cured during such 30-day period.

    (c)  By OLYMPUS upon 30 days' prior written notice to VENDOR of the
         rejection of a Product Change which VENDOR nevertheless proceeds to
         implement.  See Section 3.3.

    (d)  By either party in accordance with the provisions of Section 4.1.

    7.3  PURCHASE ORDERS.  Unless OLYMPUS decides that it does not wish to 
have a purchase order filled, any purchase order placed by OLYMPUS but not 
shipped by VENDOR prior to the date that notice of termination is delivered 
hereunder or the date that this Agreement otherwise expires, shall be timely 
delivered to the destination points designated by OLYMPUS, PROVIDED that such 
termination did not arise from OLYMPUS's default.

    7.4  RIGHTS AND OBLIGATIONS UPON TERMINATION.  Upon expiration or earlier
termination of this Agreement, OLYMPUS shall have the right to (i) sell all
Products ordered or in inventory and (ii) provide on-going support and service
to its end-users.  Notwithstanding anything contained herein to the contrary and
without limiting OLYMPUS's other remedies. In the event this Agreement is
terminated, OLYMPUS shall have the right to require VENDOR to repurchase (at the
price paid by OLYMPUS) any portion of or all ordered Products and OLYMPUS's
inventory of Products, PROVIDED (i) OLYMPUS furnishes VENDOR with the relevant
open purchase orders (with respect to ordered Products not yet in OLYMPUS
inventory), (ii) the Products in OLYMPUS inventory are in new condition and have
not been used, and (iii) the Products in OLYMPUS inventory are in their original
packaging with all manuals and other materials.

    7.5  RIGHT TO MANUFACTURE.  In the event of termination by OLYMPUS pursuant
to Section 7.2 (a) (ii) or (iii), OLYMPUS shall have the right to manufacture or
to sublicense a third party to manufacture the Products. In order to secure the
rights of OLYMPUS upon the happening of such an event and to secure the
indemnity obligations of VENDOR pursuant to Article 8 hereof, VENDOR hereby
grants to Data Securities International, Inc. (Westmont, Illinois), as escrow
agent (the "Escrow Agent"), as security for the obligations described herein, a
security interest in all of its common law proprietary rights relating to the
Products, the molds used to manufacture the Product, the 

                                          18

<PAGE>

software source code and related documentation, and the rights of VENDOR in and
to all contracts and agreements relating to the manufacture of the Products. 
OLYMPUS shall have the right to independently ascertain that the complete and
correct materials and information have been submitted to the Escrow Agent. 
OLYMPUS shall have the right to terminate any purchase orders for the Products
outstanding at the time the aforementioned manufacturing or sublicensing rights
are utilized.  VENDOR shall cooperate with OLYMPUS by providing OLYMPUS with
technical information and know-how as to the manufacture of the Products.  The
parties agree that the rights granted in this Section shall be deemed a license
of intellectual property rights within the meaning of Section 365(n) of Title 11
of the United States Code.

    7.6  SURVIVAL.  Sections 2.2, 2.3, 2.4, 2.5, 2.6, 3.1, 3.2(a), 3.2(b), 3.3,
3.4, 3.5, 3.7, 3.8, 3.9, 3.10, 3.11, 3.13, 5.4, 5.5, 5.6, 5.7 (first sentence
only), 5.8, 5.9, 5.10, 5.11, 5.13, 5.14, 6.4, 7.3, 7.4, and 7.5, and Articles 8,
9, and 10 (except Section 10.6), shall survive the execution, and termination or
expiration of this Agreement.


                             ARTICLE 8. INDEMNIFICATION.

    8.1  INFRINGEMENT  INDEMNITY. (a) Should any aspect of any Product become
the subject of any third party Intellectual Property infringement claim, action,
or proceeding, VENDOR shall, at OLYMPUS's option and within 60 days, (i) obtain
a license that would permit OLYMPUS to exercise all rights granted to it under
this Agreement or (ii) modify the Product to render it non-infringing.  VENDOR
shall bear the cost of such license or modification.  In addition, OLYMPUS may,
without limiting its remedies, without any liability whatsoever, and at its sole
and absolute discretion, suspend purchases of the Products from VENDOR
immediately.  Notwithstanding the foregoing, should VENDOR fail to accomplish
either one of the foregoing solutions (set forth in clauses (i) and (ii) above)
within such 60-day period with respect to any such Intellectual Property
infringement claim, action, or proceeding, OLYMPUS may terminate this Agreement
without limiting its remedies, without any liability whatsoever, and at its sole
and absolute discretion. In addition, OLYMPUS shall have the right to require
VENDOR to repurchase (at the price paid by OLYMPUS) any portion of or all
ordered Products and OLYMPUS's inventory of Products, PROVIDED (i) OLYMPUS
furnishes VENDOR with the relevant open purchase orders (with respect to ordered
Products not yet in OLYMPUS inventory), (ii) the Products in OLYMPUS inventory
are in new condition and have not been used, and (iii) the Products in OLYMPUS
inventory are in their original packaging with ail manuals and other materials.

                                          19

<PAGE>

         (b)  In addition to its obligations under subsection 8.1(a) above and
provided that VENDOR receives prompt written notice of any Intellectual Property
infringement claim, action, or proceeding covered by this Section 8.1, VENDOR
shall ai all times indemnify and hold harmless OLYMPUS, its successors, and
permitted assigns, and any of its officers, directors, employees,
representatives, and/or agents, and each of them, from and against any and all
claims, liabilities, losses, costs, damages, and expenses, including but not
limited to (i) the damages, losses, costs, and expenses payable to the third
party claiming Intellectual Property infringement, (ii) all of OLYMPUS's
reasonable attorneys' fees and disbursements, settlement costs, judgments, court
costs and expenses, incurred by OLYMPUS in any action or proceeding between
VENDOR and OLYMPUS and/or between OLYMPUS and any third party or otherwise,
(iii) reimbursement for the cost of Products that can no longer be sold, and
(iv) any other losses, costs, expenses, and damages incurred by OLYMPUS, arising
out of or resulting from any Intellectual Property infringement claim, action or
proceeding between VENDOR And OLYMPUS and/or between OLYMPUS and any third party
or otherwise.  The failure of OLYMPUS to give prompt notice shall not result in
the loss of indemnification unless VENDOR shall have been materially prejudiced
thereby.

         (c)  OLYMPUS shall not be entitled to the foregoing Intellectual
Property infringement indemnity from VENDOR to the extent that the Intellectual
Property infringement claim, action, or proceeding arises or results solely from
changes to the Products made by OLYMPUS without VENDOR's authorization, PROVIDED
the Products have not been modified by VENDOR without OLYMPUS's knowledge and
prior written consent.

    8.2  VENDOR PRODUCT LIABILITY AND OTHER DAMAGE INDEMNITY.          
         (a)  VENDOR shall at all times indemnify and hold harmless OLYMPUS, 
its successors and permitted assigns, and any of its officers, directors, 
employees, representatives, and/or agents, and each of them, from and against 
any and all claims, liabilities, losses, costs, damages, and expenses, 
including but not limited to all of OLYMPUS's reasonable attorneys' fees and 
disbursements, court costs and expenses, incurred by OLYMPUS in any action or 
proceeding between VENDOR and OLYMPUS (if OLYMPUS is the prevailing party) 
and/or between OLYMPUS and any third party or otherwise arising out of or 
resulting from (i) a defect or alleged defect in a Product, including without 
limitation defects relating to manufacturing, improper testing, or design, or 
any breach of warranty regarding such Product or any component thereof, (ii) 
misrepresentations made in connection with the promotion, marketing, sale, 
distribution, use, safety, or efficacy of such Product based upon information 
supplied to OLYMPUS by VENDOR, (iii) the contents of any labelling, inserts, 
instruction manuals, or related documentation prepared by VENDOR or based 
upon information supplied to OLYMPUS by VENDOR, or (iv)

                                          20

<PAGE>

a Product Recall.  OLYMPUS Shall provide VENDOR with, at VENDOR's expense for
all of OLYMPUS's out-of-pocket costs, reasonable assistance in connection with a
third party action or proceeding of the kind described in this Section 8.2 (a).

         (b) OLYMPUS shall not be entitled  to the foregoing indemnity from
VENDOR to the extent that the claim, action, or proceeding arises or results
solely from (i) unauthorized representations made by OLYMPUS regarding the
Product which are different than or in addition to the representations made by
VENDOR to OLYMPUS, or (ii) unauthorized changes to the Product made by OLYMPUS,
PROVIDED the Product in not defective and has not been modified by VENDOR
without OLYMPUS's knowledge and prior written consent.

    8.3  OLYMPUS PRODUCT LIABILITY AND OTHER DAMAGE INDEMNITY.
         (a)  OLYMPUS shall at all times, indemnify and hold harmless VENDOR,
its successors and permitted assigns and any of its officers, directors,
employees, representatives, and/or agents, and each of them, from and against
any and all claims, liabilities, losses, costs, damage, and expenses, including
but not limited to all of VENDOR's reasonable attorneys' fees and disbursements,
court costs and expenses, incurred by VENDOR in any action or proceeding between
VENDOR and OLYMPUS (if VENDOR is the prevailing party) and/or between VENDOR and
any third party (attorneys', fees and disbursements only in the event OLYMPUS
fails to defend) arising out of or resulting from (i) unauthorized
representations made by OLYMPUS regarding a Product which are different than or
in addition to the representations made by VENDOR to OLYMPUS or (ii)
unauthorized changes to a Product made by OLYMPUS, PROVIDED the Product is not
defective and has not been modified by VENDOR without OLYMPUS's knowledge and
prior written consent.  OLYMPUS shall have the right to control the defense and
settlement of a third party claim, action or proceeding.  VENDOR shall provide
OLYMPUS with, at OLYMPUS's expense for all of VENDOR's out-of-pocket costs,
reasonable assistance in connection with a third party action or proceeding
of the kind described in this Section 8.3(a).

         (b)  VENDOR shall not be entitled to the foregoing indemnity from
OLYMPUS to the extent that the claim, action, or proceeding arises or results
solely from (i) a defect or alleged defect in a Product, including without
limitation defects relating to manufacturing, improper testing, or design, or
any breach of warranty regarding such Product or any component thereof, (ii)
misrepresentations made in connection with the promotion, marketing, sale,
distribution, use, safety , or efficacy of such Product based upon information
supplied to OLYMPUS by VENDOR, (iii) the contents of any labelling, inserts,
instruction manuals, or related documentation prepared by VENDOR or based upon
information supplied to OLYMPUS by VENDOR, or (iv) a Product Recall.

                                          21

<PAGE>

                             ARTICLE 9. CONFIDENTIALITY.

For purposes of this Agreement, the term "Confidential Information" shall 
mean all documents, clearly marked as "PROPRIETARY" or "CONFIDENTIAL", 
relating to the respective products and business of the parties which (i) is 
disclosed, upon request, by one party hereto to the other and (ii) is claimed 
by the disclosing party to be secret, confidential and proprietary to the 
disclosing party.

During the Agreement Term and for a period of two years thereafter, each party
(except as is explicitly otherwise required hereby) shall keep confidential,
shall not use for the benefit of others, and shall not copy or allow to be
copied, in whole or in part, any Confidential Information disclosed to such
party by the other.

The obligations of confidentiality imposed upon the parties by the foregoing
paragraph shall not apply with respect to any alleged Confidential Information
which:

    (a)  is known to the recipient thereof prior to receipt thereof from the
         other party hereto;

    (b)  is disclosed to said recipient by a third party who has the right to
         make such disclosure;

    (c)  is or becomes a part of the public domain or public knowledge through
         no fault of said recipients;

    (d)  is independently developed by the recipient; and

    (e)  is required to be disclosed under operation of law.



                             ARTICLE 10.  MISCELLANEOUS.

    10.1 FORCE MAJEURE.  Each party hereto shall be excused from the
performance of its obligations hereunder in the event such performance is
prevented by FORCE MAJEURE, and such excuse shall continue for so long as the
condition constituting such FORCE MAJEURE and any consequences resulting from
such condition continues. In addition, in the event the condition constituting
the FORCE MAJEURE causes a substantial inability by either party hereto to
manufacture, deliver, sell, or otherwise distribute, as the case may be, the
Products, the term of this Agreement may be suspended for the period of such
inability, but not to exceed six months.  For the purposes of this Agreement,
FORCE MAJEURE shall mean causes beyond either party's control including, without
limitation, acts of God; war, riot or civil commotion; damage to or destruction
of production facilities or materials by fire,

                                          22

<PAGE>

earthquake, storm or other disaster; strikes or other labor disturbances;
epidemic; failure or default of public utilities or common carriers; and other
similar acts. (Non)Compliance with laws or government regulations shall not
constitute a FORCE MAJEURE event.

    10.2 RELATIONSHIP.  The relationship created between VENDOR and OLYMPUS by
this Agreement shall be that of independent contractors.  Neither OLYMPUS nor
VENDOR shall be deemed an agent, representative, partner, joint venturer, or
employee of the other party.  Neither VENDOR nor OLYMPUS shall have the right to
enter into any contracts or commitments or to make any representations or
warranties, whether express or implied, in the name of or on behalf of the other
party, or to bind the other party in any respect whatsoever, unless agreed to in
writing or expressly permitted in this Agreement.

    10.3 ASSIGNMENT; BINDING EFFECT. (a) Neither party to this Agreement may 
assign all or any part of its rights and obligations under this Agreement, 
except to an Affiliate, without the prior written consent of the other party. 
 No permitted assignment by any party pursuant to this subsection (a) shall 
result in any additional expense to the other party.  Any purported 
assignment in contravention of this subsection (a) shall, at the option of 
the non-assigning party, be null and void and of no effect.

    (b)  Except as otherwise provided above, this Agreement will be binding
upon and inure to the benefit of the successors and assigns of the parties. The
parties to this Agreement are VENDOR and OLYMPUS, exclusively.  Therefore,
except as expressly set forth herein, the respective obligations, covenants,
representations, and warranties undertaken and made by VENDOR and/or OLYMPUS in
this Agreement, shall not be deemed the obligations, covenants, representations,
and warranties of VENDOR's and OLYMPUS's respective Affiliates.

    10.4 NOTICES.  Any notice or other communication required or permitted to
be given to either party under this Agreement shall be given in writing and
shall be delivered (i) by hand, or (ii) by registered or certified mail, postage
prepaid and return receipt requested, or (iii) by confirmed facsimile
transmission; addressed to each party at the following address or such other
address as may be designated by such party by notice pursuant to this Section:

    To VENDOR:     AccuMed International, Inc.
                   920 N. Franklin Street, Suite 402 
                   Chicago, Illinois 60610
                   Fax: 312-642-8694
                   ATTENTION: Peter Gombrich, Chairman & CEO

                                          23

<PAGE>

    To OLYMPUS:    Olympus America Inc.
                   Precision Instrument Division 
                   Two Corporate Center Drive 
                   Melville, New York 11747-3157
                   Fax: 516-844-5111
                   ATTENTION: Division Manager

    with and copy to OLYMPUS'S General Counsel at the same address 
    (FAX: 516-844-5296).

Any notice, consent, or other communication given in conformity with this
Section shall be deemed effective when received by the addressee, if delivered
by hand or facsimile transmission, and seven days after mailing, if mailed.

    10.5 GOVERNING LAW: SUBMISSION TO JURISDICTION.  This Agreement and any 
other documents or instruments related hereto and all transactions hereunder 
shall be deemed to have been made within and under the laws of the State of 
New York, including the Uniform Commercial Code of the State of New York, and 
for all purposes shall be governed by and construed in accordance with the 
laws of the State of New York without regard to the conflict of laws rules 
thereof.  The parties expressly agree that any controversy, dispute or claim 
with respect to any provision of this Agreement shall be adjudicated 
exclusively by a court of competent jurisdiction within Suffolk County, the 
State of New York, or the Federal District Court for the Eastern District of 
New York, applying New York law without regard to the rules of conflicts of 
law and VENDOR and OLYMPUS irrevocably waive any objections either may have 
and consent to the personal jurisdiction or the designation of a forum or 
venue of the courts set forth herein, including without limitation waiving a 
motion to change or transfer venue or that the forum is not convenient.  
Notwithstanding the foregoing, either party may, in any jurisdiction, seek to 
enforce, collect, or take any other action to effectuate a judgment, order, or 
decree obtained from a court in Suffolk County, State of New York or the 
Federal District Court for the Eastern District of New York.

    10.6 EXECUTION OF ADDITIONAL DOCUMENTS. Each party hereto agrees to execute
and deliver such documents as may be necessary or desirable to carry out the
provisions of this Agreement.

    10.7 ENTIRE AGREEMENT. Except for OLYMPUS purchase orders pending as of the
Effective Date, this Agreement constitutes the entire agreement between VENDOR
and OLYMPUS with respect to the subject matter hereof.  All prior or
contemporaneous agreements, proposals, understandings, representations, and
communications with respect to the subject matter hereof, whether written or
oral, between or involving VENDOR and OLYMPUS hereby are cancelled and
superseded.  This Agreement may be amended or

                                          24

<PAGE>

modified only in and writing executed by both parties, which states that it is
an amendment or modification to this Agreement.

    10.8 SEVERABILITY.  If any provision or part thereof of this Agreement is
held to be invalid, void or unenforceable, the remaining provisions or parts
thereof of this Agreement shall continue in full force without being impaired or
invalidated in any way, to the maximum extent possible consistent with the
intent of the parties in entering into this Agreement.

    10.9 TAXES.  Each party shall be responsible for payment of its own taxes.

    10.10 COUNTERPARTS.  This Agreement may be executed in duplicate
counterparts, each of which when so executed shall be deemed to be an original
and both of which when taken together shall constitute one and the same
instrument.

    10.11 NO WAIVER.  No WAIVER of any right under this Agreement shall be 
deemed effective unless contained in a writing signed by the party charged with 
such waiver and specifically stating that it waives a provision of this 
Agreement, and no waiver of any breach or failure to perform shall be deemed 
to be a waiver of any future breach or failure to perform or of any other 
provisions of this Agreement.

    10.12 HEADINGS.  The headings contained herein are for reference only and
are not and part of this Agreement and shall not be used in connection with the
interpretation of this Agreement.

    10.13 RIGHTS AND REMEDIES CUMULATIVE; DAMAGES. All rights and remedies
hereunder are cumulative and may be enforced separately or concurrently and from
time to time, unless otherwise specifically stated herein.  The enforcement of
any particular remedy shall not constitute an election of remedies, and no
remedy is exclusive unless specifically stated herein.  Each party's sole
remedies for the breach by the other party of any obligations contained in this
Agreement shall be recovery of direct damages, if any, and/or termination of
this Agreement in accordance with Section 7.2. In no event shall either party be
liable to the other party under this Agreement for indirect, special,
incidental, or consequential damages of any kind, including but not limited to
damages for lost profits, lost investments, or lost business opportunities
(collectively, "Consequential Damages") OLYMPUS and VENDOR hereby agree that
direct damages shall not include or contain Consequential Damages.

    10.14. CONTRACT INTERPRETATION. Each party hereto acknowledges that it has
had ample opportunity to review and comment on this Agreement.  This Agreement
shall be read and interpreted according to its plain meaning and an ambiguity
shall

                                          25


<PAGE>

not be construed against either party.  It is expressly agreed by the parties
that the judicial rule of construction that a document should be more strictly
construed against the draftsperson thereof shall NOT apply to any provision of
this Agreement.

    IN WITNESS WHEREOF, the parties have caused this Agreement to be executed
by their duly authorized representatives of the date first above written.

ACCUMED INTERNATIONAL, INC.


By: /s/ Peter Gombrich
   ---------------------------
Name:    Peter Gombrich
Title:   Chairman & CEO



OLYMPUS AMERICA INC.-Precision Instrument Division


By: /s/ Sidney Braginsky
   ---------------------------
Name:    Sidney Braginsky
Title:   President

                                          26

<PAGE>

                                    SCHEDULE 1.11

                                  PRODUCTS & PRICING

    SYSTEMS                                   PRICE
    -------                                   -----
    AcCell-TM- 2000                         [   *   ]
    AcCell-TM- 2000C with Data
    Management System                       [   *   ]
    AcCell-TM- 2001 slide handling system
    with two cassettes                      [   *   ]
    AcCell-TM- 2001C with Data Management
    System and two cassettes                [   *   ]

    ACCESSORIES
    -----------
    Bar code reader                         [   *   ]
    Automated dotter                        [   *   ]
    Calibration tool for Model 2001 
    System                                  [   *   ]
    15001 calibration slide                 [   *   ]
    Data Management Software
    (as upgrades to Systems)                [             *           ]
    AcCell-TM- Data Management System to
    Laboratory information System
    software link                           [         *         ]
                                            per installation (estimated, to be
                                            quoted on and case-by-case basis
                                            per end-user specifications)

    CONSUMABLES
    -----------
    Box of four dotter cartridges
         (2,000 dots per cartridge)         [  *   ]




*PORTIONS OF THIS EXHIBIT HAVE BEEN OMITTED AND FILED SEPARATELY WITH THE 
SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A CONFIDENTIAL TREATMENT REQUEST.

<PAGE>

                                     SCHEDULE 4.1

                                  QUARTERLY MINIMUMS

Quarter                                      Minimum System Units
- -------                                      --------------------

Effective Date                                      [+]
     2                                              [+]
     3                                              [+]
     4                                              [+]
     5                                              [+]
     6                                              [+]
     7                                              [+]
     8                                              [+]
     9                                              [+]
     10                                             [+]
     11                                             [+]
     12                                             [+]

*    The [+] System units ordered on the Effective Date shall only be delivered
     by VENDOR to OLYMPUS when complete and ready for delivery, including but
     not limited to (i) inclusion of the System, Accessories, Consumables, and
     System firmware, and (ii) full compliance with the requirements set forth
     in Sections 2.5(a), 3.1(i), 3.2(a), and 3.5 of this Agreement.




+PORTIONS OF THIS EXHIBIT HAVE BEEN OMITTED AND FILED SEPARATELY WITH THE 
SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A CONFIDENTIAL TREATMENT REQUEST.

<PAGE>

                                    SCHEDULE 5.13

                          POST-WARRANTY REPAIR SERVICE RATES

                                [  * ] per labor hour




*PORTIONS OF THIS EXHIBIT HAVE BEEN OMITTED AND FILED SEPARATELY WITH THE 
SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A CONFIDENTIAL TREATMENT REQUEST.

<PAGE>

                                     EXHIBIT A

                             INSPECTION & TEST PROCEDURES


            TO BE COMPLETED AND ATTACHED WITHIN 30 DAYS FROM THE EFFECTIVE
                                        DATE.

<PAGE>

                                      EXHIBIT B

                                    SPECIFICATIONS


                                     SEE ATTACHED

<PAGE>

        AcCell-TM- Cytopathology System Model 2000 Specifications

                      [                *                ]



2KSPECS 8/31/95                                                  5/16/96 UPDATE
                                       1



*PORTIONS OF THIS EXHIBIT HAVE BEEN OMITTED AND FILED SEPARATELY WITH THE 
SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A CONFIDENTIAL TREATMENT REQUEST.


<PAGE>


                      [                *                ]



2KSECS 8/31/95                                                   5/16/96 UPDATE
                                       2



*PORTIONS OF THIS EXHIBIT HAVE BEEN OMITTED AND FILED SEPARATELY WITH THE 
SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A CONFIDENTIAL TREATMENT REQUEST.

<PAGE>


                      [                *                ]



2KSPECS 8/31/95                                                  5/16/96 UPDATE
                                       3



*PORTIONS OF THIS EXHIBIT HAVE BEEN OMITTED AND FILED SEPARATELY WITH THE 
SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A CONFIDENTIAL TREATMENT REQUEST.

<PAGE>


                      [                *                ]



2KSPECS 8/31/95                                                  5/16/95 UPDATE
                                       4



*PORTIONS OF THIS EXHIBIT HAVE BEEN OMITTED AND FILED SEPARATELY WITH THE 
SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A CONFIDENTIAL TREATMENT REQUEST.

<PAGE>
                                                                   EXHIBIT 10.33
                          ACCUMED INTERNATIONAL, INC.
                            (A DELAWARE CORPORATION)
                            ------------------------
                                PROMISSORY NOTE
                            ------------------------
 
                                                               Chicago, Illinois
$61,000.00                                                          May 22, 1996
 
    Peter  P. Gombrich  (the "Payor"),  for value  received, promises  to pay to
AccuMed International, Inc., a Delaware corporation, with its principal place of
business located at 920 N. Franklin  Street, Suite 402, Chicago, Illinois  60610
(the  "Payee")  on or  before ten  (10) days  from  and after  the date  of this
Promissory  Note  (the  "Maturity  Date")  at  the  Payee's  address  set  forth
hereinabove  or, at  such other  place as the  Payee shall  hereafter specify in
writing, the principal sum of Sixty  One Thousand Dollars ($61,000.00), in  such
coin  or currency of the United States of  America as at the time shall be legal
tender for the payment of public and private debts.
 
    The following is a statement of the  rights of the Payee and the  conditions
to  which this Note  is subject, to which  the Payee, by  the acceptance of this
Note, agrees:
 
    1.  INTEREST AND PAYMENT.
 
    1.1 The unpaid principal amount hereof  shall bear simple interest from  the
date  hereof at the rate of 10% per  annum until the Maturity Date (or until any
such earlier date of payment if this Note is prepaid as hereinafter provided).
 
    1.2 Interest shall  be payable in  arrears, on  the last day  of each  month
until paid in full.
 
    1.3  If payment of the principal  amount hereof and interest accrued thereon
is not made on or prior to the Maturity Date, then interest shall accrue on such
unpaid principal amount from the  date of nonpayment to  the date of payment  at
the  interest rate of  17% per annum  or the maximum  interest rate permitted by
applicable law, if lower than 17%.
 
    1.4 In no  event shall the  Payee be entitled  to receive interest,  however
characterized and including other consideration received in connection with this
Note,  at an effective rate  in excess of the maximum  rate permitted by law. In
the event  that a  court of  competent jurisdiction  shall determine  that  such
amounts  paid or  agreed to be  paid by the  Payor in connection  with this Note
cause the effective  interest rate under  this Note to  exceed the maximum  rate
permitted  by law, such  interest shall automatically be  reduced to the maximum
rate permitted by law over the term hereof, and, in such event, the Payee  shall
either  apply to the reduction of the  unpaid principal balance of this Note any
amounts received by it  deemed to constitute excessive  interest or refund  such
excess to the Payor.
 
    The  Payor may prepay all or any portion of the principal amount outstanding
and accrued interest under this Note without  penalty at any time. In the  event
of  prepayment of any principal, interest will  thereafter cease to accrue as to
the portion prepaid.
 
    2.  EVENTS OF DEFAULT.  If  any of the following events shall occur  (herein
individually  referred to as an  "Event of Default"), the  Payee may declare the
entire unpaid principal and  accrued interest on this  Note immediately due  and
payable, by a notice in writing to the Payor:
 
        2.1  Any default by the Payor under any provision of this Note (provided
    such default is not cured by the Payor within ten (10) days after receipt of
    written notice of such default from Payee) or if any material representation
    or warranty of the Payor herein is untrue; or
 
        2.2 The institution  by the  Payor of  proceedings to  be adjudicated  a
    bankrupt or insolvent, or the consent by him to institution of bankruptcy or
    insolvency  proceedings against him  or the filing  by him of  a petition or
    answer or  consent  seeking  reorganization or  release  under  the  Federal
    bankruptcy  laws,  or any  other  applicable Federal  or  state law,  or the
    consent by him to the  filing of any such petition  or the appointment of  a
    receiver,  liquidator, assignee, trustee, or  other similar official, of the
    Payor, or of any substantial part of  his property, or the making by him  of
    an
<PAGE>
    assignment  for the benefit of creditors, or the admission by him in writing
    of his inability to pay his debt generally as they become due or the  taking
    of corporate action by the Payor in furtherance of any such action; or
 
        2.3  If, within 30 days after the  commencement of an action against the
    Payor  seeking  any  bankruptcy,  insolvency,  reorganization,  liquidation,
    dissolution  or similar relief  under any present or  future statute, law or
    regulation, such  action shall  not have  been dismissed  or all  orders  or
    proceedings thereunder affecting the operations or the business of the Payor
    stayed,  or if the stay of any  such order or proceeding shall thereafter be
    set aside, or if, within 30  days after the appointment without the  consent
    or  acquiescence of the Payor of any  trustee, receiver or liquidator of all
    or any substantial  part of the  properties of the  Payor, such  appointment
    shall not have been vacated.
 
        2.4  If  the Payor  shall have  failed  to pay  in full  the outstanding
    principal balance and accrued interest thereon  on or prior to the  Maturity
    Date.
 
    3.  OWNERSHIP REGISTRATION; NO TRANSFERS OR ASSIGNMENTS.  The Payor may deem
and treat the person in whose name this Note shall be registered as the absolute
owner  of  such Note  for  the purpose  of  receiving payment  of  principal and
interest and for all other purposes. The  Payee may not transfer or assign  this
Note  or any of  the rights hereunder  without the prior  written consent of the
Company at its sole discretion.
 
    4.  WAIVER AND AMENDMENT.  Any provision of this Note may be amended, waived
or modified only upon the written consent of the Payor and the Payee.
 
    5.  ATTORNEYS' FEES.  In the event of any action by the Payee to enforce the
terms hereof  the  Payee  shall  be obligated  to  pay  all  Payor's  reasonable
attorneys' fees and costs in connection therewith in the event Payor prevails.
 
    6.   GOVERNING LAW.   The provisions of  this Note shall  be governed by and
construed in accordance with the laws of the State of Illinois.
 
    IN WITNESS WHEREOF, the Payor has caused this Note to be signed in its  name
this 22nd day of May, 1996.
 
                                          ACCUMED INTERNATIONAL, INC.
 
                                          By: /s/ Peter P. Gombrich
  ------------------------------------------------------------------------------
                                             Peter P. Gombrich

<PAGE>

                                                                   EXHIBIT 10.34

                                  [LETTERHEAD]

                                                  Non-Negotiable Promissory Note
$ 775,000.00
Chicago, Illinois                                                  July 22, 1996

          FOR VALUE RECEIVED, AccuMed International, Inc. ("AccuMed") having an
office at 900 North Franklin, Chicago, Illinois 60610 hereby promises to pay
Radco Ventures, Inc. ("Radco") the principal sum of $775,000.00 without
interest. This note shall be payable on July 21, 1997 unless earlier satisfied
in accordance with the terms hereof.

          This note shall be deemed satisfied and shall be cancelled upon the
closing of the purchase by AccuMed from the holders thereof ("Holders") of the
Radco common stock and the Radco promissory notes sold to investors in 1996
pursuant to Regulation S promulgated under the Securities Act of 1933, as
amended, for a purchase price equal to $1,105 per unit.

          If any provision of this note is held for any reason to be
unenforceable, the remainder of this note shall nevertheless remain in full
force and effect.

          This note supersedes all prior agreements, arrangements or
understandings of the parties with respect to its subject matter.

          This note shall be binding upon and inure to the benefit of the
parties and their successors and permitted assigns, and may not be changed
orally.

          IN WITNESS WHEREOF, Accumed International, Inc. has caused this note
to be duly executed on its behalf on the date first above stated.


                                        ACCUMED INTERNATIONAL, INC.

                                        BY /s/ Peter P. Gombrich
                                          -------------------------------

WITNESS:

/s/ Mark L. Santor
- ------------------------------


 

<PAGE>

                                                                Exhibit 10.35

                     EMPLOYMENT SEPARATION AGREEMENT AND RELEASE

    This Employment Separation Agreement and Release is made and entered into
as of this 24th day of June, 1996 by and between Kenneth D. Miller, an
individual ("Employee") and AccuMed International, Inc. (which, together with
its predecessor Alamar Biosciences Laboratory, Inc., its parent, current and
former subsidiaries, affiliates, predecessors, successors, assigns, insurers,
agents and employees shall hereinafter be collectively referred to as
"Employer"), and the parties hereby agree as follows:


    1.   Employee has voluntarily resigned from his employment with Employer
effective June 30, 1996.  During his employment with Employer, Employee will
retain the title of corporate Senior Vice President and acting President of
RADCO, and will report to Employer's CEO Peter P. Gombrich.  In addition, during
his employment with Employer, Employee will be on special assignment for the
Microbiology Division.  Employee acknowledges that he resigned as a corporate
officer effective May 7, 1996.  Employee will be paid his regular salary and
benefits through his last day of employment.  It is understood and agreed that
Employee may seek other employment opportunities and may, upon reasonable notice
to Employer, change the date of his resignation to an earlier date.


    2.   Employer has requested, and Employee has agreed that during the months
of July, August, September and October, 1996 Employee will spend 70% of his time
during the course of normal work week, discharging the responsibilities of RADCO
as

<PAGE>

its acting President, and as a consultant to the Employer.  For these services
Employee will receive compensation, at the rate of:

         a.   RADCO compensation            $4,250.00 per month
         b.   Employer compensation         $1,875.00 per month


    3.   Employer acknowledges that as of this date, Employee has vested
options to purchase 140,000 shares (25,000 shares at $1.13 per share and 115,000
shares at $1.39 per share) of AccuMed stock pursuant to his Incentive Stock
Option Agreements with Alamar Biosciences, Inc.  These options will continue to
be governed by the Incentive Stock Option Agreements dated June 21, 1991 and May
22, 1992 and correspondence relating thereto, and Employee shall have no greater
rights pursuant to this Agreement than he had under those Agreements.  Provided,
however, that notwithstanding the terms of the Incentive Stock Option Agreements
Employee's options must be exercised on or before September 30, 1996, or they
will be forfeited, canceled, terminated, and of no further effect, and they may
not be exercised thereafter.  Employee has reserved the right to discuss with
his tax accountant and attorney regarding potential tax liability that may be
incurred by exercising his options that could affect his accord with the
Agreement, and further, reserves the right to have Section 3. in the Agreement
modified, mutually agreeable to Employer and Employee, at a date future (but not
later than June 30th, 1996) to reasonably reduce potentially excessive tax
liability.  The Employer agrees to this reservation so long as it is
acknowledged by Employee that the Employer is not offering any further monetary
compensation.


                                          2

<PAGE>

    4.   Employee will be paid all submitted business expenses on or before
June 30, 1996.  Employee will be paid $8662.37 in accrued vacation time and
$7,437.00 for relocation gross-up in three equal monthly payments beginning July
15, 1996 and the last payment being made September 15,1996.  If Employee signs
this Agreement after it is tendered to him, and signs the Acknowledgment
attached as Exhibit A after his employment terminates, and if Employee does not
revoke his signatures on this Agreement or the Acknowledgment to this Agreement,
Employee will be paid Two Thousand Six Hundred Twenty-Five Dollars ($2625) per
month less applicable taxes and deductions for four months on the 15th and the
last day of each month for a period of four months, beginning on July 15, 1996
and ending on October 31, 1996; and commencing November 15, 1996 and for the
next four months (November and December 1996 and January and February 1997) the
Employee will be paid the sum of Six Thousand One Hundred and Twenty-Five
Dollars ($6,125.00) per month on the 15th and the last day of each month, less
any applicable taxes and deductions.  Said payments shall be made regardless of
continuance of the Employee consulting with Employer or acting as President of
RADCO. In addition, Employer will continue to pay for Employer's portion of any
health, dental and other insurance benefits that Employee now receives, and that
Employee is entitled to receive, through October 31, 1996.  Employee
acknowledges that these payments greatly exceed the amount otherwise due to him,
and that they are payments made in consideration for his entering into this
Agreement.  Employee acknowledges that no further amounts are due for salary,
severance, bonus, vacation pay, stock options, pursuant to contract or
otherwise.  By these payments,


                                          3

<PAGE>

Employer does not admit that it has any liability to Employee for any reason
whatsoever, and the entry into this Agreement shall not constitute any admission
of or evidence of any type of unfair, unlawful, or improper conduct by Employer.
Rather, such payment is solely for the purpose of settling forever any claims,
actual or potential, which Employee may have or believe he has, with respect to
any events involving his employment relationship with Employer or the
termination of such relationship.



    5.   Employee on his own behalf and on behalf of his heirs and assigns,
releases, forever discharges and covenants not to sue Employer with respect to
all claims, causes of action, suits, debts, sums of money, controversies,
agreements, promises, damages and demands whatsoever, including attorney's fees
and court costs, in law, equity or before any federal, state or local
administrative agency, for, on account of, or in relation to any contract of
employment and/or employment relationship between Employee and Employer, or the
termination of such relationship, which Employee has or may have as of the date
of this Agreement, including but not limited to claims under the Age
Discrimination in Employment Act.


    6.   Employee agrees that, during his employment with Employer, and for a
period of one year after his employment terminates, Employee shall not, either
alone or in association with others, directly or indirectly, whether as a
proprietor, partner, director, officer, agent, salesperson, consultant or
otherwise: (a) solicit, or employ, or authorize to be solicited for employment
any persons who were, at any time within six (6) months prior to the termination
of Employee's employment, employees of the Employer; or (b) in any other way
divert, take away or interfere with any of the custom,


                                          4

<PAGE>

trade, business patronage of the cytopathology division and its products or
employees of the Employer.


    7.   Employee acknowledges that he has had access to and been involved in
strategic new product planning and development, and that the disclosure of this
information to competitors would cause irreparable harm to Employer.  Thus,
Employee further agrees that, during the term of his employment, and for a
period of one year after his employment terminates he will not seek or accept
employment or engage in any business as an officer, director, employee, partner,
agent, consultant or in any other individual or representative capacity, which
competes with Employer, or which is engaged in the development of cytopathology
products involved with automated microscopy and image analysis, including but
not limited to Neopath, Neuromedical Systems, Roche Imaging Systems, Cytyc and
Compucyte or their subsidiaries or affiliates. Employee agrees that he will not
retain, use or disclose, directly or indirectly, any of Employer's confidential
information.  Employee understands and agrees that confidential information
includes, without limitation, all new product information, customer lists,
customer specifications, customer contact persons, specialized business methods,
techniques, computer data, plans and knowledge relating to the business of
Employer, advertising, marketing materials and concepts, customer information,
methods for developing and maintaining business relationships with clients and
prospective clients, prospective customer lists, procedural manuals, employee
training and review programs, price lists, payroll and personnel information,
cost information and any other confidential information or trade secrets that
may have been imparted to Employee by Employer, or


                                          5

<PAGE>

which Employee has learned of as a result of his employment with Employer.
Employee recognizes that this confidential information is a unique asset of
Employer, developed and perfected over a considerable time and at substantial
expense to Employer and the disclosure of which may cause injury, loss of
profits and loss of goodwill to Employer.  Employee agrees to protect the
confidentiality and use of all confidential information during his employment
and thereafter.  Employee agrees to keep all confidential documents in secure
locations and not to use or reveal any confidential information during the term
of Employee's employment except as necessary for the business purposes of
Employer.  Employee agrees that he will not use, disclose, copy, discuss, or
disseminate any of Employer's confidential information.


    8.   Employee acknowledges that all papers, photographs and apparatus
related to the business of Employer, including those prepared or made by
Employee, including but not limited to confidential information, new product
information, customer lists, records, and marketing materials, shall be and
remain at all times the property of Employer.  On or before the date his
employment terminates, Employee agrees to return to Employer any personal
property owned by Employer, including, but not limited to, samples, manuals,
schedules, equipment, reports, or files obtained by and through Employee's
employment by Employer, and all correspondence, written memoranda, diagrams,
books, computerized data and computer software, records, notebooks, films and
other documents, and all copies thereof relating in any way to any confidential
information about Employer, whether prepared by Employee or by others.


                                          6

<PAGE>

    9.   Employee states that the provisions of this Agreement are not a
hardship to him, that he has employment opportunities in fields other than the
development of cytopathology products, and that this Agreement will not prevent
him from obtaining employment.  Employee recognizes that Employer's market is
global, and agrees that it this Agreement is reasonable despite the absence of
any geographic restriction.


    10.  Employee understands that in the event of a violation or attempted
violation of the provisions of this Agreement:  (a) Employer will suffer
irreparable harm to its business for which Employer would have no adequate
remedy at law; (b) Employer, in addition to any other remedies available in law
or in equity, may seek from any court of competent jurisdiction an order
enjoining Employee from any further violations or attempted violations of the
provisions of this Agreement or compelling Employee to comply with the
provisions of this Agreement; (c) Employee waives any and all rights to contest
jurisdiction and venue in the courts of the County of Cook or the Northern
District of Illinois over Employee for the purposes of enforcing this Agreement;
and (d) Employee shall be liable for all damages resulting from such violations
or attempted violations, including but not limited to the Employer's attorney's
fees and court costs incurred in seeking to enforce this Agreement.


    11.  Employee authorizes Employer to open any mail received by it which is
addressed to him, and is not marked "Personal," including but not limited to
mail received after the termination of Employee's employment.


    12.  Employee acknowledges that the provisions of the Confidential
Disclosure Agreement between Employee and Alamar Biosciences Laboratory, Inc.,
which was


                                          7

<PAGE>

entered into on or about August 31, 1989, remains in full force and effect, and
reaffirms that he will abide by the terms of that Agreement.  A copy of that
Agreement is attached hereto and made a part hereof as Exhibit B.   Employee
further acknowledges that the provisions of the Trade Secrets and Patent
Agreement between Employee and AccuMed International, Inc., which was entered
into on or about April 12, 1996, remains in full force and effect, and reaffirms
that he will abide by the terms of that Agreement.  A copy of that Agreement is
attached hereto and made a part hereof as Exhibit C.


    13.  Employee agrees not to seek to be hired or rehired by Employer and not
to seek to extend the period of his employment or relationship with Employer
beyond June 30, 1996, and waives any future employment with Employer.
Notwithstanding the foregoing, it is understood and agreed that, upon mutual
agreement of Employer and Employee, Employee may enter into a consulting
agreement with Employer that is separate from and has no bearing upon this
Separation Agreement.


    14.  This Agreement is confidential, and Employee will not inform any
person of its terms and conditions, except for his immediate family, attorney
and those necessary for Employee's compliance with legal requirements.


    15.  Employer will respond to any telephone inquiries from prospective
employers of Employee with information as to his length of service with
Employer, the type of work which he performed, and his level of compensation.
Employer will also provide a letter of reference in the form set forth in
Exhibit D upon request.  Employer will not make any statements to prospective
employers which could reasonably be expected to have an adverse impact on
Employee's employment opportunities, nor will


                                          8

<PAGE>

Employee make any statements which may reasonably be expected to adversely
affect the business or reputation of Employer.  Employer agrees that its CEO
Peter Gombrich will accept telephone calls from prospective employers of
Employee and will provide a fair and balanced reference.


    16.  Employee understands that the Agreement fully sets forth all
separation benefits he will receive from Employer, and it supersedes any
previous offers or promises, whether oral or written.


    17.  Employee acknowledges that he has fully read this Agreement,
understands its terms, has been advised to consult with an attorney prior to
signing this Agreement, has been given 21 days to consider this release and its
ramifications, has been given 7 days after signing to rescind this Agreement,
and is entering into this Agreement knowingly and voluntarily.

                                       /s/ Kenneth D. Miller
                                       ------------------------
                                       Kenneth D. Miller

                                       ACCUMED
                                       INTERNATIONAL, INC.


                                       By:/s/ Peter P. Gombrich
                                          ---------------------
                                       Peter P. Gombrich
                                       Its Chairman and CEO


                                          9

<PAGE>

                                      EXHIBIT A

                                   ACKNOWLEDGMENT

    Employee acknowledges that his resignation was effective on June 30, 1996,
and that he agrees to all of the terms of this Employment Separation Agreement
and Release.




DATE:________________   _________________________
                        Kenneth D. Miller


                                          10

<PAGE>

                                                                 Exhibit 10.36

                     EMPLOYMENT SEPARATION AGREEMENT AND RELEASE

    This Employment Separation Agreement and Release is made and entered into
as of this 10th day of June, 1996, by and between Mark L. Santor, an individual
("Employee") and AccuMed International, Inc. (which, together with its
predecessor Alamar Biosciences Laboratory, Inc., its parent, current and former
subsidiaries, affiliates, predecessors, successors, assigns, insurers, agents
and employees shall hereinafter be collectively referred to as "Employer"), and
the parties hereby agree as follows:

    1.  Employee has voluntarily resigned from his employment with Employer
effective August 30, 1996.  During his employment with Employer, Employee will
retain the title of Chief Financial Officer and will report to Employer's CEO
Peter P. Gombrich.  Employee acknowledges that he has resigned as Vice President
of Operations effective June 1, 1996 and will resign as a corporate officer and
Chief Financial Officer on a date to be specified by the Employer or August 30,
1996, whichever is earlier.  Employee will be paid his regular salary and
benefits through his last day of employment.  It is understood and agreed that
Employee may seek other employment opportunities and may, providing Employee
keeps the search entirely confidential, upon reasonable (not to exceed thirty
days) notice to Employer, change the date of his resignation to an earlier date.
Employee will be allowed reasonable time for scheduled outside interviews
without reduction of accrued vacation. Employee further acknowledges that any
public disclosure of his job search or intention to secure other employment
before August 30, 1996, and in particular in this interim time period would be
very harmful to the Company, and will exercise every available means to see to
it that his


<PAGE>

search remains a confidential matter, notwithstanding disclosure beyond his
control from other employees of the Employer.

    2.  Employee has Incentive Stock Option agreements with Alamar Biosciences,
Inc. and AccuMed International, Inc. and governed by plans dated June 21, 1991,
May 22, 1992 and December 29, 1995 and correspondence relating thereto.
Notwithstanding the terms of these Incentive Stock Agreements, Employer hereby
immediately vests all of the Employee's stock options and extends the expiration
dates of all of the options, including any scheduled to expire in 1996, to
January 15, 1997. Employer acknowledges that as of this date, Employee has
vested options to purchase 106,961 shares (75,000 shares at $1.13 per share,
28,961 shares at $1.39 per share and 3,000 shares at $0.75 per share) of AccuMed
stock pursuant to his Incentive Stock Option Agreements with Alamar Biosciences,
Inc.  Except as provided above, Employee shall have no greater rights pursuant
to this Agreement than he had under those Incentive Stock Option Agreements.
Provided, however, that notwithstanding the terms of the Incentive Stock Option
Agreements, Employee's options must be exercised on or before January 15, 1997,
or they will be forfeited, canceled, terminated, and of no further effect, and
they may not be exercised thereafter.

    3.  Employee will be reimbursed normal business expenses as incurred and
approved on expense reports.  Employee will be paid $13,998.00 in accrued
vacation time, less any accrued vacation time used before August 30, 1996, in
three equal amounts; an amount equal to one of third of total ($4,666.00) being
payable August 30, 1996, September 30, 1996 and October 31, 1996. Employer
hereby immediately forgives


                                          2


<PAGE>


and considers paid $3,300.00 of the amount due on a $6,600.00 note and any other
obligations to the Employer relating to the Employee's 1995 home purchase and/or
relocation to the Chicago area.  Any other terms and conditions, and balance
outstanding, as set for in the note (attached as Exhibit A) will remain in
force. If Employee signs this Agreement after it is tendered to him, and signs
the Acknowledgment attached as Exhibit B after his employment terminates, and if
Employee does not revoke his signatures on this Agreement or the Acknowledgment
to this Agreement, Employee will be paid Eight Thousand Seven Hundred Fifty
Dollars ($8,750) per month less applicable taxes and deductions for three months
on the 15th and the last day of each month, beginning on September 15, 1996 and
ending on November 30, 1996.  In addition, Employer will continue to pay for
Employer's portion of any health, dental and other insurance benefits that
Employee now receives, and that Employee is entitled to receive, through
November 30, 1996 or until Employee secures other insurance benefits, which ever
shall occur first.  Employee acknowledges that these payments greatly exceed the
amount otherwise due to him, and that they are payments made in consideration
for his entering into this Agreement.  Employee acknowledges that no further
amounts are due for salary, severance, bonus, vacation pay, stock options,
pursuant to contract or otherwise.  By these payments, Employer does not admit
that it has any liability to Employee for any reason whatsoever, and the entry
into this Agreement shall not constitute any admission of or evidence of any
type of unfair, unlawful, or improper conduct by Employer.  Rather, such payment
is solely for the purpose of settling forever any claims, actual or potential,
which Employee may have or believe he has, with respect to any events


                                          3


<PAGE>


involving his employment relationship with Employer or the termination of such
relationship.

    4.  Employee on his own behalf and on behalf of his heirs and assigns,
releases, forever discharges and covenants not to sue Employer with respect to
all claims, causes of action, suits, debts, sums of money, controversies,
agreements, promises, damages and demands whatsoever, including attorney's fees
and court costs, in law, equity or before any federal, state or local
administrative agency, for, on account of, or in relation to any contract of
employment and/or employment relationship between Employee and Employer, or the
termination of such relationship, which Employee has or may have as of the date
of this Agreement, including but not limited to claims under the Age
Discrimination in Employment Act.

    5.  Employee agrees that, during his employment with Employer, and for a
period of one year after his employment terminates, Employee shall not, either
alone or in association with others, directly or indirectly, whether as a
proprietor, partner, director, officer, agent, salesperson, consultant or
otherwise:  (a) solicit or employ or cause or authorize to be solicited for
employment any persons who were, at any time within six (6) months prior to the
termination of Employee's employment, employees of the Employer; or (b) in any
other way divert, take away or interfere with any of the custom, trade, business
patronage or employees of the Employer.

    6.  Employee acknowledges that he has had access to and been involved in
strategic new product planning and development, and that the disclosure of this
information to competitors would cause irreparable harm to Employer.  Thus,
employee


                                          4

<PAGE>


further agrees that, during the term of his employment, and for a period of one
year after his employment terminates, he will not seek or accept employment or
consulting work from any company engaged in the development of either
microbiology MID/ID panels and/or associated automated reading equipment or
cytopathology products involved with automated microscopy and image analysis,
including but not limited to Neopath, Neuromedical Systems, Roche Imaging
Systems, Cytyc and Compucyte. Employee agrees that he will not retain, use or
disclose, directly or indirectly, any of Employer's confidential information.
Employee understands and agrees that confidential information includes, without
limitation, all new product information, customer lists, customer
specifications, customer contact persons, specialized business methods,
techniques, computer data, plans and knowledge relating to the business of
Employer, advertising, marketing materials and concepts, customer information,
methods for developing and maintaining business relationships with clients and
prospective clients, prospective customer lists, price lists, payroll and
personnel information, cost information and any other confidential information
or trade secrets that may have been imparted to Employee by Employer, or which
Employee has learned of as a result of his employment with Employer.  Employee
recognizes that this confidential information is a unique asset of Employer,
developed and perfected over a considerable time and at substantial expense to
Employer and the disclosure of which may cause injury, loss of profits and loss
of goodwill to Employer.  Employee agrees to protect the confidentiality and use
of all confidential information during his employment and thereafter.  Employee
agrees to keep all confidential documents in secure locations and not to use or
reveal any confidential


                                          5

<PAGE>

information during the term of Employee's employment except as necessary for the
business purposes of Employer.  Employee agrees that he will not use, disclose,
copy, discuss, or disseminate any of Employer's confidential information.

    7.  Employee acknowledges that all papers, financial documents, photographs
and apparatus related to the business of Employer, including those prepared or
made by Employee, including but not limited to confidential information, new
product information, customer lists, records, and marketing materials, shall be
and remain at all times the property of Employer.  On or before the date his
employment terminates, Employee agrees to return to Employer any personal
property owned by Employer, including, but not limited to, samples, manuals,
schedules, equipment, reports, or files of any kind obtained by and through
Employee's employment by Employer, and all correspondence, written memoranda,
diagrams, books, computerized data and computer software, records, notebooks,
films and other documents, and all copies thereof relating in any way to any
confidential information about Employer, whether prepared by Employee or by
others.

    8.  Employee acknowledges that the services to be rendered to Employer are
of a special and unique character.  Employee agrees that during the term of his
employment, and for one year after his employment terminates, he shall engage in
any business as an officer, director, employee, partner, agent, consultant or in
any other individual or representative capacity which is engaged in the
development of microbiology and/or cytopathology products.

    9.  Employee acknowledges that he is aware that the Company will be


                                          6

<PAGE>

hiring a Chief Financial Officer to replace Employee.  Employee agrees that due
to the special and unique nature of his position of Chief Financial Officer that
he is in possession of proprietary information the location and order of which
he may be the sole source.  Employee further agrees that he will actively
participate, work without reservation and put forth his (the Employee's) best
efforts to ensure a smooth and orderly transition of all job responsibilities,
knowledge, and disclosure of all files, information, documentation and pending
matters pertaining to the operation(s) and well-being of the Company.  Should
the Employee fail to ensure the orderly transition of job responsibilities
without any reservation, his termination shall be immediate, with Cause and all
provisions of this Agreement shall be null and void.

    10.  Employee acknowledges and understands that the terms and conditions of
this Agreement are totally conditional upon the Employee conducting himself and
exercising the responsibilities of his office in a prudent manner, spending the
necessary time to fullfill the requirements of the position and refraining from
any derogatory comments or opinions of the Company or its management or any
inappropriate behavior of any kind.   Should the Employee fail to fulfill these
terms and conditions as set forth in this Agreement the Company reserves the
right to immediately terminate the Employee, and all terms and conditions
contained in this Agreement will be null and void.

    11.  Employee states that the provisions of this Agreement are not a
hardship to him, that he has employment opportunities in fields other than the
development of microbiology and cytopathology products, and that this Agreement
will


                                          7

<PAGE>


not prevent him from obtaining employment.  Employee recognizes that Employer's
market is global, and agrees that it this Agreement is reasonable despite the
absence of any geographic restriction.

    12.  Employee understands that in the event of a violation or attempted
violation of the provisions of this Agreement:  (a) Employer will suffer
irreparable harm to its business for which Employer would have no adequate
remedy at law; (b) Employer, in addition to any other remedies available in law
or in equity, may seek from any court of competent jurisdiction an order
enjoining Employee from any further violations or attempted violations of the
provisions of this Agreement or compelling Employee to comply with the
provisions of this Agreement; (c) Employee waives any and all rights to contest
jurisdiction and venue in the courts of the County of Cook or the Northern
District of Illinois over Employee for the purposes of enforcing this Agreement;
and (d) Employee shall be liable for all damages resulting from such violations
or attempted violations, including but not limited to the Employer's attorney's
fees and court costs incurred in seeking to enforce this Agreement.

    13.  Employee authorizes Employer to open any mail received by it which is
addressed to him, and is not marked "Personal," including but not limited to
mail received after the termination of Employee's employment.

    14.  Employee acknowledges that the provisions of the Confidential
Disclosure Agreement between Employee and Alamar Biosciences Laboratory, Inc.,
which was entered into on or about August 31, 1989, remains in full force and
effect, and reaffirms that he will abide by the terms of that Agreement.  A copy
of that


                                          8

<PAGE>


Agreement is attached hereto and made a part hereof as Exhibit C.   Employee
further acknowledges that the provisions of the Trade Secrets and Patent
Agreement between Employee and AccuMed International, Inc., which was entered
into on or about April 12, 1996, remains in full force and effect, and reaffirms
that he will abide by the terms of that Agreement.  A copy of that Agreement is
attached hereto and made a part hereof as Exhibit D.

    15.  Employee agrees not to seek to be hired or rehired by Employer and not
to seek to extend the period of his employment or relationship with Employer
beyond August 30, 1996, and waives any future employment with Employer.
Notwithstanding the foregoing, it is understood and agreed that, upon mutual
agreement of Employer and Employee, Employee may enter into a consulting
agreement with Employer that is separate from and has no bearing upon this
Separation Agreement.

    16.  This Agreement is confidential, and Employee will not inform any
person of its terms and conditions, except for his immediate family, attorney
and those necessary for Employee's compliance with legal requirements.

    17.  Employer will respond to any telephone inquiries from prospective
employers of Employee with information as to his length of service with
Employer, the type of work which he performed, and his level of compensation.
Employer will also provide a letter of reference in the form set forth in
Exhibit E upon request.  Employer will not make any statements to prospective
employers which could reasonably be expected to have an adverse impact on
Employee's employment opportunities, nor will Employee make any statements which
may reasonably be expected to adversely affect the


                                          9

<PAGE>


business or reputation of Employer.  Employer agrees that its CEO Peter Gombrich
will accept telephone calls from prospective employers of Employee and will
provide a fair and balanced reference.

    18.  Employee understands that the Agreement fully sets forth all
separation benefits he will receive from Employer, and it supersedes any
previous offers or promises, whether oral or written.

    19.  Employee acknowledges that he has fully read this Agreement,
understands its terms, has been advised to consult with an attorney prior to
signing this Agreement, has been given 21 days to consider this release and its
ramifications, has been given 7 days after signing to rescind this Agreement,
and is entering into this Agreement knowingly and voluntarily.

                             /s/ Mark L. Santor
                             -----------------------
                             Mark L. Santor



                             ACCUMED
                             INTERNATIONAL, INC.

                             By:/s Peter P. Gombrich
                                --------------------
                                Peter P. Gombrich
                             Its Chairman and CEO


                                          10


<PAGE>


                                      EXHIBIT B

                                    ACKNOWLEDGMENT

    Employee acknowledges that his resignation was effective on August 30,
1996, and that he agrees to all of the terms of this Employment Separation
Agreement and Release.




DATE:
     ----------------        -------------------------
                             Mark L. Santor


                                          11


<PAGE>
                                                                    EXHIBIT 23.2
 
                       CONSENT OF INDEPENDENT ACCOUNTANTS
 
    We  consent to the inclusion or incorporation  by reference in this Form S-2
(to be filed with the Commission on or about July 23, 1996) of our report  dated
September  14, 1995, on our audit of the balance sheet of Sensititre/Alamar, the
Microbiology Division of  AccuMed, Inc., as  of December 31,  1994, and the  net
sales,  cost of sales and  selling expenses for the  eight months ended December
31, 1994, and  the years ended  April 30, 1994  and 1993; of  our report,  which
includes an explanatory paragraph related to substantial doubt about the ability
of  AccuMed, Inc. to continue  as a going concern,  dated September 29, 1995, on
our audit of the balance sheet of AccuMed, Inc. as of December 31, 1994, and for
the period from  February 7, 1994  (inception) through December  31, 1994,  both
appearing  in the registration statement on form  S-4 (SEC File No. 33-99680) of
Alamar Biosciences,  Inc.  filed with  the  Securities and  Exchange  Commission
pursuant  to the  Securities Act  of 1933  as incorporated  by reference  in the
Current Report on Form  8-K dated December  29, 1995; and  of our report,  which
includes an explanatory paragraph related to substantial doubt about the ability
of  Alamar Biosciences, Inc. to continue as  a going concern, dated November 19,
1995, on our audits of the  financial statements of Alamar Biosciences, Inc.  as
of September 30, 1995 and 1994, and for the years ended September 30, 1995, 1994
and  1993, which report is included in the  Annual Report on Form 10-KSB for the
year ended September  30, 1995. We  also consent  to the reference  to our  firm
under the caption "Experts."
 
                                          /s/ COOPERS & LYBRAND L.L.P.
 
Sacramento, CA
July 19, 1996

<PAGE>
                                                                    EXHIBIT 23.3
 
                       CONSENT OF INDEPENDENT ACCOUNTANTS
 
    We  consent to the incorporation by reference  in this Form S-2 (to be filed
with the Securities and Exchange  Commission on or about  July 23, 1996) of  our
report  dated December 8,  1995, on our  audit of the  balance sheets of AccuMed
International Limited as  of December  31, 1994, April  30, 1994  and 1993,  and
related  statements  of  operations and  cashflows  for the  eight  months ended
December 31, 1994, and the years ended April 30, 1994 and 1993, appearing in the
registration  statement  on  Form  S-4   (SEC  File  No.  33-99680)  of   Alamar
Biosciences,  Inc. filed with the Securities and Exchange Commission pursuant to
the Securities Act of 1933 as incorporated by reference in the current Report on
Form 8-K dated December 29, 1995.
 
/s/ COOPERS & LYBRAND
 
Croydon
United Kingdom
July 19, 1996

<PAGE>
                                                                    EXHIBIT 23.4
                         INDEPENDENT AUDITORS' CONSENT
 
The Board of Directors
AccuMed International, Inc.
 
We  consent  to the  use  of our  report  dated April  5,  1996 relating  to the
consolidated balance sheet of AccuMed  International, Inc. and subsidiary as  of
December  31,  1995  and  the  related  consolidated  statements  of operations,
stockholders' equity and cash  flows for three months  ended December 31,  1995,
included  in  this  Prospectus and  incorporated  herein by  reference  from the
Company's transition report on Form 10-KSB  for the three months ended  December
31,  1995,  and  to  the  reference to  our  firm  under  the  heading "Selected
Consolidated Financial Data" and "Experts" in the prospectus.
 
                                          /s/ KPMG Peat Marwick LLP
 
Chicago, Illinois
July 25, 1996

<PAGE>
                                                                    EXHIBIT 23.5
                         INDEPENDENT AUDITORS' CONSENT
 
The Board of Directors
Oncometrics Imaging Corp.
 
We consent to the use of our report included herein and to reference to our firm
under the heading "Experts" in the prospectus.
 
/s/ KPMG
Chartered Accountants
 
Vancouver, British Columbia
July 25, 1996

<PAGE>


                           CONSENT OF BANNER & ALLEGRETTI, LTD.

   We consent to the reference to our firm under the heading "Experts" in the 
Prospectus constituting part of the Registration Statement on Form S-2 and 
amendments thereto.

   We further consent to the incorporation by reference of this consent 
pursuant to Rule 439(b) under the Securities Act of 1933, as amended (the 
"Securities Act"), pursuant to any subsequent registration statement for the 
same offering that may be filed pursuant to Rule 462(b) under the Securities 
Act.


                                         /s/ BANNER & ALLEGRETTI, LTD.
                                         ---------------------------------
                                         By: /s/ Bradley J. Hulbert

10 S. Wacker Drive
Chicago, Illinois 60606
July 23, 1996


<PAGE>


                                CONSENT OF EXPERTS

   We consent to the reference to our firm under the heading "Experts" in the 
Prospectus constituting part of the Registration Statement on Form S-2 and 
amendments thereto.

   We further consent to the incorporation by reference of this consent 
pursuant to Rule 439(b) under the Securities Act of 1933, as amended (the 
"Securities Act"), pursuant to any subsequent registration statement for the 
same offering that may be filed pursuant to Rule 462(b) under the Securities 
Act.


                                                /s/ James Heslin
                                         ----------------------------------
                                         Townsend and Townsend and Crew LLP

379 Lytton Avenue
Palo Alto, California 94301
July 23, 1996



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