ACCUMED INTERNATIONAL INC
S-3, 1996-07-05
IN VITRO & IN VIVO DIAGNOSTIC SUBSTANCES
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<PAGE>
   
      AS FILED WITH THE SECURITIES AND EXCHANGE COMMISSION ON JULY 3, 1996
    
   
                                                     REGISTRATION NO. 333-
    
- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------
 
                       SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D.C. 20549
 
                         ------------------------------
 
                                    FORM S-3
                             REGISTRATION STATEMENT
                                     UNDER
                           THE SECURITIES ACT OF 1933
                            ------------------------
 
                          ACCUMED INTERNATIONAL, INC.
 
             (Exact name of registrant as specified in its charter)
 
                         ------------------------------
 
<TABLE>
<S>                             <C>
           DELAWARE                   36-4054899
- ------------------------------  -----------------------
 (State of other jurisdiction      (I.R.S. Employer
              of                  Identification No.)
incorporation or organization)
</TABLE>
 
                       900 N. Franklin Street, Suite 401
                            Chicago, Illinois 60610
                                 (312) 642-9200
 
                         ------------------------------
 
    (Address, including zip code, and telephone number, including area code,
                  of registrant's principal executive offices)
 
                         ------------------------------
 
                               PETER P. GOMBRICH
                            Chief Executive Officer
                          AccuMed International, Inc.
                       900 N. Franklin Street, Suite 401
                            Chicago, Illinois 60610
                                 (312) 642-9200
 
                         ------------------------------
 
 (Name, address, including zip code, and telephone number, including area code,
                             of agent for service)
 
                         ------------------------------
 
                                    COPY TO:
                             GILLES S. ATTIA, ESQ.
                                 Graham & James
                          400 Capitol Mall, Suite 2400
                          Sacramento, California 95814
                                 (916) 558-6700
 
    Approximate  date of commencement of proposed  sale to the public: From time
to time after the effective date of this Registration Statement.
 
    If only securities being registered on this Form are being offered  pursuant
to dividend or interest reinvestment plans, please check the following box. / /
 
    If  any of the securities being registered on this Form are to be offered on
a delayed on continuous basis pursuant to  Rule 415 under the Securities Act  of
1933, check the following box. /X/
 
    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
                                                  AMOUNT TO         OFFERING PRICE        AGGREGATE           AMOUNT OF
    TITLE OF SECURITIES TO BE REGISTERED        BE REGISTERED       PER SHARE (1)       OFFERING PRICE     REGISTRATION FEE
<S>                                           <C>                 <C>                 <C>                 <C>
Common Stock, Par Value $0.01...............    255,000 shares          $6.44             $1,641,563             $566
</TABLE>
 
(1) 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 $6.44 per share, the average of the high and low
    sales prices reported for the Common Stock on July 1, 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>
PROSPECTUS
 
                                 255,000 SHARES
                          ACCUMED INTERNATIONAL, INC.
                                  COMMON STOCK
 
    This Prospectus relates to 255,000 (the "Shares") of Common Stock, par value
$0.01  per  share  (the "Common  Stock"),  of AccuMed  International,  Inc. (the
"Company" or "AccuMed"). The Company will  not receive any of the proceeds  from
any  sales of  the Shares. The  Registration Statement of  which this Prospectus
forms a part has been filed  pursuant to contractual registration rights of  the
Shares.  (Holders Shares  are referred  to as  the "Selling  Stockholders.") See
"Selling Stockholders."
 
    The Shares of Common Stock may be offered and sold from time to time by  the
Selling   Stockholders   through   ordinary   brokerage   transactions   in  the
over-the-counter market,  in negotiated  transactions  or otherwise,  at  market
prices  prevailing  at  the time  of  the  sale or  at  negotiated  prices (this
"Offering").  See   "Risk  Factors,"   "Selling  Stockholders"   and  "Plan   of
Distribution."
 
   
    The  closing price for the Common Stock on  July 1, 1996, as reported on the
National  Association   of  Securities   Dealers  Automated   Quotation   System
("Nasdaq"), was $6.75 per share.
    
 
    THE  SECURITIES OFFERED HEREBY INVOLVE  A HIGH DEGREE OF  RISK AND SHOULD BE
CONSIDERED ONLY BY PERSONS WHO CAN  AFFORD THE LOSS OF THEIR ENTIRE  INVESTMENT.
SEE "RISK FACTORS."
 
                            ------------------------
 
    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.
 
                            ------------------------
 
    No  underwriting commissions  or discounts  will be  paid by  the Company in
connection with  this Offering.  Estimated expenses  payable by  the Company  in
connection with this Offering are approximately $70,000.
 
                            ------------------------
 
               THIS DATE OF THIS PROSPECTUS IS ___________, 1996.
<PAGE>
                             AVAILABLE INFORMATION
 
    The  Company is subject to the  informational requirements of the Securities
Exchange Act of  1934, as amended,  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 Common Stock is quoted on  the
Nasdaq  SmallCap 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.
 
   
    Additional information  regarding the  Company  and the  securities  offered
hereby  is contained in the Registration Statement on Form S-3 (Registration No.
333-     ) of which this Prospectus forms a part, and the exhibits thereto filed
with  the  Commission  under  the  Securities  Act  of  1933,  as  amended  (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.
 
                INCORPORATION OF CERTAIN DOCUMENTS BY REFERENCE
 
    The following documents which have heretofore been filed by the Company with
the Commission pursuant to the Securities Exchange Act of 1934, as amended  (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.
 
                                       2
<PAGE>
    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 this 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
N.  Franklin Street, Suite  401, Chicago, Illinois  60610, Attn: Chief Financial
Officer, telephone (312) 642-9200.
 
   
    The following are  tradenames and  trademarks of the  Company: the  "Alamar"
logo  and name, READar-TM-, PIPETar-TM-,  alamarBlue-TM-, AccuMed, Inc., AccuMed
International, Inc.,  the "AccuMed"  logo  and name,  AcCell-TM-,  TracCell-TM-,
Sensititre-Registered Trademark-, SensiTouch-Registered Trademark-,
SensiLink-TM-,  Aris-TM-, JustOne-TM-, MicroBact-TM-,  Sensi-Cal-TM-, Amco AEPA-
1-Registered Trademark- and Diascan-TM-.
    
 
                                       3
<PAGE>
                               PROSPECTUS SUMMARY
 
    THE  FOLLOWING SUMMARY  IS QUALIFIED  IN ITS  ENTIRETY BY  THE MORE DETAILED
INFORMATION AND FINANCIAL  STATEMENTS AND NOTES  THERETO APPEARING ELSEWHERE  IN
THIS PROSPECTUS OR INCORPORATED HEREIN BY REFERENCE, INCLUDING INFORMATION UNDER
"RISK  FACTORS," AND IN THE INFORMATION  AND DOCUMENTS INCORPORATED BY REFERENCE
HEREIN. THE STATEMENTS THAT  ARE NOT HISTORICAL FACTS  OR STATEMENTS OF  CURRENT
STATUS  CONTAINED IN THIS PROSPECTUS  ARE FORWARD-LOOKING STATEMENTS (AS DEFINED
IN THE PRIVATE SECURITIES LITIGATION REFORM ACT OF 1995) THAT INVOLVE RISKS  AND
UNCERTAINTIES,  INCLUDING,  BUT NOT  LIMITED TO,  THE RISKS  SET FORTH  IN "RISK
FACTORS." ACTUAL RESULTS MAY DIFFER MATERIALLY.
 
                                  THE COMPANY
 
    AccuMed  International,   Inc.  ("AccuMed"   or  the   "Company")   designs,
manufactures  and  markets diagnostic  and screening  products for  the clinical
diagnostic laboratory,  pharmaceutical  and veterinary  markets.  The  Company's
products  use innovative proprietary technology  designed to improve quality and
productivity and reduce costs in the cytopathology and microbiology  laboratory.
The  Company's cytopathology products provide  automated support and enhancement
of the human screener in the analysis of cytopathology specimens. The  Company's
initial products for the cytopathology laboratory market are the AcCell 2000 and
the  AcCell 2001  automated slide handling  and microscopy  workstations for the
analysis of  cervical Pap  smears (collectively,  the "AcCell  2000/2001").  The
Company  is developing  a set of  related products, including  the TracCell 2000
specimen mapping  workstation,  designed to  work  in concert  with  the  AcCell
2000/2001  to offer  the cytopathology laboratory  a family  of high performance
tools that provide comprehensive support  during initial critical phases of  the
Pap   smear  analysis  process.  The  Company  has  recently  granted  exclusive
distribution rights in the Western Hemisphere  for the AcCell 2000/2001 and  the
TracCell  2000 to  Olympus America Inc.  ("Olympus"). Marketing  of the TracCell
2000 is subject to  additional testing and, for  the U.S. market, FDA  clearance
under a 510(k) Notification. The Company also offers the microbiology laboratory
a  variety of FDA-cleared products for the identification and minimum inhibitory
concentration ("MIC/ID") testing of bacteria suspected of causing infections and
their susceptibility to antibiotics under the tradenames Sensititre and  Alamar.
AccuMed  is  developing  a  low  cost  Kirby-Bauer  reading  instrument  for the
microbiology market and  is researching  a potential new  MIC/ID testing  system
combining certain of the Company's proprietary technologies.
 
    The Pap smear is currently the most widely-used screening test for the early
detection  of cancer in the United States.  It is estimated that laboratories in
the U.S. alone will process  over 55 million Pap smears  in 1996, with over  120
million  processed worldwide. Although cervical cancer is one of the most common
cancers afflicting women throughout the world,  survival rates can reach 90%  if
detected  early.  Although  the conventional  manual  Pap smear  test  is highly
effective,   the   test   and   process   has   limitations,   including   human
cytotechnologist  error  due  to  high  volumes,  habituation  and  fatigue, and
burdensome administrative requirements. False negative Pap smear diagnoses rates
range from  between  5% to  30%,  and both  false  negative and  false  positive
diagnoses  lead to significant  liability issues to  the laboratory and possible
health issues to the patient, while at the same time adding significant cost  to
the  process. The AcCell system directly addresses these issues by eliminating a
large portion of the manual work ancillary to slide analysis, guaranteeing  100%
slide review and automatically recording and reporting what has been done on the
AcCell data management system.
 
   
    The  Company's cytopathology products are designed to improve the quality of
cell analysis, increase accuracy and productivity in the laboratory, and  reduce
the  time and costs associated with  analysis, but without requiring significant
changes from standard  laboratory practice.  Rather than  developing costly  and
risky  fully automated primary  screening systems that eliminate  the need for a
trained cytotechnologist, the  Company is focused  on providing a  comprehensive
family  of  proprietary,  technologically-advanced,  application-driven products
offering seamless support of medical professionals in the analysis and diagnosis
of Pap smears and  other cell samples. Initially  applied to Pap test  analysis,
the  AcCell system is expected to have a broad range of cytopathology, pathology
and histology applications.
    
 
                                       4
<PAGE>
   
    The Company's microbiology division focuses on developing, manufacturing and
marketing in vitro diagnostic tests for the clinical laboratory, veterinary  and
pharmaceutical  markets. The  Company markets, and  is developing,  a variety of
proprietary MIC/ID  testing  products, both  manual  and automated,  focused  on
testing for bacterial infections. AccuMed's microbiology product lines include a
series of disposable test kits and a wide range of automated instruments used to
identify   infectious   organisms,   such  as   bacteria,   and   determine  the
susceptibility of such organisms to  antimicrobial agents, such as  antibiotics.
The  use of MIC/ID testing by  hospitals and laboratories assists physicians and
other health  care professionals  in determining  the most  effective course  of
treatment  earlier and more efficiently, potentially shortening patient hospital
stays, resulting  in more  accurate diagnoses  and reducing  overall  healthcare
costs.  For the three months ended March 31, 1996 the Company generated revenues
of $1,179,000 from sales of microbiology products.
    
 
    The Company  and  its  predecessor companies  have  consistently  pursued  a
strategy  of developing  or acquiring early  detection products  that reduce, or
potentially reduce,  overall healthcare  costs  while enhancing  or  maintaining
current levels of effectiveness. The Company believes that the current pressures
in  the healthcare  industry for  reduced costs  and increased  efficiencies are
better addressed by products that work within and enhance established practices.
Products that seek to revolutionize established practices often face  regulatory
and  market acceptance hurdles that are difficult if not impossible to overcome.
The Company  is also  focused on  integrated product  designs that  the  Company
believes  are demanded  by a market  that seeks individualized  products and the
ability to  expand  product  capability  as  the  customer's  business  changes.
AccuMed's  objective is to establish the AcCell system as the premier microscopy
workstation for the primary screening of Pap smears, exploit other  applications
for  the AcCell technology  such as histology and  pathology laboratory work and
enhance its position  in the MIC/ID  testing market through  development of  new
products  based on  proprietary technology.  The key  elements of  the Company's
strategy include  (i) continuing  to  establish the  AcCell system  through  OEM
agreements  with  major microscope  manufacturers,  such as  the  agreement with
Olympus already in place, (ii)  focusing on international market  opportunities,
(iii)  enhancing  the  Accell system  through  research and  development  of new
products, (iv) establishing a recurring  revenue base by charging TracCell  2000
users  "by  the test",  (v) integrating  the Company's  proprietary microbiology
technologies into new MIC/ID products,  (vi) continuing to seek out  acquisition
candidates  with compatible  technologies and (vii)  setting up  new channels of
sales and distribution.
 
    AccuMed is  headquartered at  900 N.  Franklin Street,  Suite 401,  Chicago,
Illinois 60610, with additional facilities in Westlake, Ohio and East Grinstead,
Sussex,  England. Previously, the Company was incorporated under the laws of the
State of California as "Alamar Biosciences, Inc." On December 29, 1995, AccuMed,
Inc., an  Illinois  corporation, merged  (the  "Merger") with  and  into  Alamar
Biosciences,  Inc. and the  surviving entity was  renamed AccuMed International,
Inc. and reincorporated  under Delaware  law. The Company  has one  wholly-owned
subsidiary, AccuMed International, Ltd. ("AccuMed U.K." or "Sensititre")
 
                                       5
<PAGE>
                                  THE OFFERING
 
   
<TABLE>
<S>                                  <C>
Common Stock offered...............  255,000  shares offered  by the  Selling Stockholders.
                                     The Company  will not  receive any  proceeds from  the
                                     sales of Shares by the Selling Stockholders.
Common Stock to be outstanding
 after this offering...............  18,631,453 shares(1).
Nasdaq Common Stock symbol.........  "ACMI"
</TABLE>
    
 
- ------------------------
   
(1) Represents  shares outstanding at July 1, 1996 plus shares to be sold by the
    Company in this  Offering. Excludes:  (i) an aggregate  of 5,969,333  shares
    reserved  for  issuance upon  exercise of  outstanding warrants  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 1,657,982 shares
    reserved for issuance upon the exercise of stock options outstanding at July
    1, 1996  at  exercise prices  between  $0.63 and  $8.38  per share,  with  a
    weighted  average exercise price of $2.13  per share; and (iii) an aggregate
    of 196,631 shares reserved for  issuance upon exercise of options  available
    for  future grant under the Company's Amended and Restated 1990 Stock Option
    Plan, Amended and  Restated 1992  Stock Option  Plan and  1995 Stock  Option
    Plan.
    
 
RISK FACTORS
 
    The statements that are not historical facts or statements of current status
contained  in this Prospectus are forward-looking  statements (as defined in the
Private Securities  Litigation  Reform  Act  of 1995)  that  involve  risks  and
uncertainties,  including,  but not  limited to,  the risks  set forth  in "Risk
Factors." Actual results may differ materially. The decision of whether to  make
an  investment  in  the Common  Stock  involves  an analysis  of  certain risks,
including but not  limited to, the  risk factors set  forth in this  Prospectus.
Each potential investor is urged to carefully consider the risks inherent in the
Company's   significant   and  continuing   operating  losses,   the  regulatory
environment in which the Company operates,  and the volatility of the  Company's
stock price. See "Risk Factors."
 
                                       6
<PAGE>
                                  RISK FACTORS
 
    THE  SECURITIES OFFERED HEREBY INVOLVE A HIGH DEGREE OF RISK, INCLUDING, BUT
NOT NECESSARILY LIMITED TO, THE  RISK FACTORS DESCRIBED BELOW. EACH  PROSPECTIVE
INVESTOR  SHOULD CAREFULLY CONSIDER  THE FOLLOWING RISK  FACTORS INHERENT IN AND
AFFECTING THE  BUSINESS  OF THE  COMPANY  AND  THIS OFFERING  BEFORE  MAKING  AN
INVESTMENT  DECISION. THE STATEMENTS THAT ARE NOT HISTORICAL FACTS OR STATEMENTS
OF CURRENT STATUS  CONTAINED IN THIS  PROSPECTUS ARE FORWARD-LOOKING  STATEMENTS
THAT  INVOLVE RISKS AND UNCERTAINTIES INCLUDING, BUT NOT LIMITED TO, THE FACTORS
SET FORTH BELOW. ACTUAL RESULTS MAY DIFFER MATERIALLY.
 
    LIMITED  RELEVANT   OPERATING   HISTORY;   SIGNIFICANT   OPERATING   LOSSES;
ACCUMULATED  DEFICIT; SUBSTANTIAL COSTS  OF INTEGRATION AND  CONSOLIDATION.  The
Company's predecessor was formed in 1988  and was engaged primarily in  research
and  development  of  microbiology  products  until  early  1994.  The Company's
predecessor never realized any significant revenues from product sales. AccuMed,
Inc., which was merged  into the Company in  December 1995, 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 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 on December 29, 1995, the
operations of the  Company and  AccuMed, Inc.  were combined  and the  resulting
company  began to  develop, manufacture and  sell the Alamar  and the Sensititre
microbiology products and the AccuMed cytopathology products. Thus, the combined
Company has a  limited relevant operating  history upon which  an evaluation  of
it's  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  and 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 operating losses in each fiscal quarter
since its inception. For the  years ended September 30,  1994 and 1995, and  the
three months ended December 31, 1995 and March 31, 1996, the Company's operating
losses  were  approximately $3,146,000,  $3,707,000, $5,662,000  and $2,649,000,
respectively. The costs  of integrating  and consolidating  the recently  merged
companies  as  a  single  enterprise  have  been  substantial  and  account  for
approximately $4,000,000 and $3,500,000 of the losses for the three months ended
December 31, 1995 and March  31, 1996, respectively. As  of March 31, 1996,  the
Company had an accumulated deficit of approximately $25,410,000. Such losses are
expected  to continue for the foreseeable future until such time, if any, as the
Company is able  to attain sales  levels sufficient to  support its  operations.
There  can  be  no  assurances  that  the  Company  will  be  able  to implement
successfully its operating strategy, generate increased revenues or ever achieve
profitable operations.
 
    SIGNIFICANT CAPITAL  REQUIREMENTS;  POSSIBLE NEED  FOR  ADDITIONAL  CAPITAL;
SUBSTANTIAL  ACCOUNTS PAYABLE.  The Company  intends to expend substantial funds
for  research  and  product  development,  expansion  of  sales  and   marketing
activities,  expansion of manufacturing  capacity and other  working capital and
general corporate  purposes.  Although  the  Company  believes  that  internally
current  resources and generated funds will  be sufficient to fund the Company's
projected operations through the  next 12 months, no  assurances to that  effect
can  be  given. 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 expansion  of sales and  marketing
activities,  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's 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. In
the  event  that  additional  financing  is  needed,  the  Company  may  seek to
 
                                       7
<PAGE>
raise additional  funds  through  public  or  private  financing,  collaborative
relationships  or other arrangements.  The Company currently  has no commitments
with respect to sources of additional financing, and there can be no  assurances
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
attractive 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.  Moreover, the  inability  of  the
Company  to  grant  licenses  to  third  parties  to  commercialize  products or
technologies that the Company would otherwise  develop itself, and the terms  of
such  licenses may be less favorable than if the Company were negotiating from a
stronger position.  Any  additional  equity financing  may  involve  substantial
dilution to the Company's then-existing stockholders.
 
   
    Of  the approximately  $2,146,000 of  accounts payable  as of  May 31, 1996,
approximately $1,690,000 represent  amounts payable  for over  30 days.  Amounts
owed  to various vendors and  suppliers may be subject to  late charges of up to
approximately 1.5%  per  month.  If  the Company  is  unable  to  increase  cash
resources,  significant  demand  for  payment  of  payables  in  excess  of cash
resources could cause the Company  to liquidate assets, issue additional  equity
securities, curtail existing programs or make other arrangements that could have
a  material adverse effect  on the business, financial  condition and results of
operations of the Company.
    
 
    PROTECTION OF  INTELLECTUAL PROPERTY.   The  Company holds  a United  States
patent,  and has received a notice of intent to grant a related European patent,
with respect to a portion of the Alamar microbiology technology. The Company has
obtained licenses  on  several  United  States and  foreign  patents  and  other
intellectual property rights regarding aspects of the technology embodied in the
Sensititre  product line and  in March 1996  entered into a  letter of intent to
acquire certain image  analysis patents  from Accuron  Corporation. The  Company
owns, or has been assigned, six United States patent applications covering blood
cultures,  and certain technologies embodied in the AcCell and TracCell systems.
During 1996, the Company has applied for eight additional United States  patents
relating  to the optical imaging technology. None of such applications have been
granted as of the date  of this Prospectus and there  can be no assurances  that
any  such patent applications will result in issued patents. The Company may, in
the future,  file  additional patent  applications;  however, there  can  be  no
assurances  that the  Company will  be successful  in obtaining  approval of any
future patent applications it files with respect to its technologies.
 
    There  can  be  no  assurances  that  the  aforementioned  patents,   patent
applications  and licenses  will adequately  protect the  Company from potential
infringers. 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.  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 the original patent application filer, was the first
creator  of  inventions  covered by  pending  patent applications  or  that such
companies were the first to file patent applications for such inventions.
 
    From late 1994 until early 1996, the  Company was party to patent and  trade
secret  litigation both asserting  and defending its rights  relating to part of
the Alamar microbiology technology covered in its existing United States patent.
Despite the successful resolution of such litigation, there can be no assurances
that the Company will  not become a party  to future litigation involving  other
parties in connection with its intellectual property rights.
 
                                       8
<PAGE>
    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  assurances
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 assurances 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.
 
    DELAYED  OR UNSUCCESSFUL PRODUCT DEVELOPMENT.   The Company will be required
to  undertake  time-consuming  and   costly  development  activities  and   seek
regulatory  approval for these new products. There can be no assurances that the
Company will  not  experience  difficulties  that could  delay  or  prevent  the
successful  development, introduction and marketing  of these new products, that
regulatory clearance or approval of these or any new products will be granted by
the FDA on a timely basis, if at  all, or that the new products will  adequately
meet  the requirements  of the applicable  market or  achieve market acceptance.
Although the Company believes that the  TracCell 2000 will require a  pre-market
clearance under Section 510(k) ("510(k)") of the Federal Food, Drug and Cosmetic
Act  of 1938, as amended, for marketing in the United States, a requirement that
the Company file a pre-market approval ("PMA") application for the product would
significantly delay the Company's ability to market such test and  significantly
increase  the costs of development. The  Company believes that the TracCell 3000
may require a PMA. 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  and  the TracCell  3000.  The  Company's
proposed  TracCell 3000 mapping system  is in an early  stage of development and
there can  be  no  assurances  that  it  will  be  successfully  developed.  The
completion  of the  development of  the Company's  cytopathology products remain
subject to all the risks associated  with the commercialization of new  products
based  on innovative  technologies, 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  applications and  products.
Consequently,   there  can  be   no  assurances  that   the  Company's  proposed
cytopathology products will be successfully  developed or manufactured, or  that
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.
 
    Pursuant  to a  Research and Development  Agreement between  the Company and
RADCO Ventures, Inc.,  the Company  and RADCO are  attempting to  develop a  new
automated   microbiology   product   line   combining   Sensititre   and  Alamar
technologies. The Company is also developing  a new microbiology system for  the
susceptibility  market segment to automatically analyze  the zone size using the
disk diffusion  ("Kirby Bauer")  method.  If such  development projects  do  not
result  in one  or more  commercially viable  products obtaining  FDA pre-market
approval, the Company  may reassess its  business strategy with  respect to  the
Microbiology  Division. Such reassessment could lead to changes in the Company's
overall business plan,  including the relative  allocation of resources  between
the  Microbiology Division and Cytopathology  Division and the relative emphasis
on current, as well as future, products in each division.
 
    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
 
                                       9
<PAGE>
its  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  these  products
primarily  through  a  limited number  of  distributors. [The  Company  has only
recently  entered  into  an  OEM   distribution  arrangement  with  a   national
distributor,  Olympus.  The Company  may be  required  to enter  into additional
distribution  arrangements  in  order  to  achieve  broad  distribution  of  its
products.  There can be no  assurance that the Company  will be able to maintain
the recently  established distribution  relationship with  Olympus or  that  the
Company  will be  able to enter  into and maintain  arrangements with additional
distributors on a timely basis,  if at all. The  Company will be dependent  upon
these  distributors to assist it in  promoting market acceptance of its products
and creating  demand  for the  Company's  products. The  risks  associated  with
dependence  upon distributors will be exacerbated  by the Company's intention to
rely on a limited number  of distributors, with the  result that sales to  these
distributors  will account for a significant  portion of the Company's revenues.
There can  be  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, thus  reducing  their efforts  to sell  the  Company's
products.  If the Company  is unable to  establish appropriate arrangements with
distributors or  if 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.
 
    GOVERNMENT REGULATION.  The  Company's products and manufacturing  processes
are subject to extensive regulation by state and federal agencies, including the
United  States Food and Drug Administration  (the "FDA") and comparable agencies
in certain states  and other  countries. United  States regulatory  requirements
promulgated  under the  Federal Food,  Drug, and  Cosmetic Act  (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 products'  safety and effectiveness for their intended  uses.
The Company's products which require FDA authorization prior to marketing may be
authorized  by the FDA for marketing either pursuant to a premarket notification
under Section 510(k) of  the FD&C Act (a  "510(k) Notification") or a  premarket
approval  ("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 which 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 statutorily
prescribed period of 90 days.
 
    A PMA consists 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,  to
demonstrate  the  safety  and  efficacy  of the  device  for  the  intended uses
specified in the PMA application. 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. Commercial distribution in  foreign
countries  is also subject  to regulatory requirements and  no assurances can be
given that the Company can obtain the required regulatory approvals on a  timely
basis, or at all.
 
    Regulatory 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 by the Company, and any of its distributors, of
approved medical devices for off-label uses. In addition, product approvals  may
be  withdrawn for failure to comply  with regulatory standards or the occurrence
of unforeseen problems following initial marketing.
 
                                       10
<PAGE>
    The TracCell 2000 mapping  system, currently under  development and not  yet
marketed,  will require FDA approval prior to  marketing in the United States At
the present time, it is  the opinion of management that  a full PMA will not  be
required  for this mapping device and  that the 510(k) Notification process will
be applicable. There  can be  no assurances  that the  Company will  be able  to
utilize a 510(k) Notification rather than a full PMA process or that the Company
will  receive FDA marketing approval for such product or, if received, that such
approval will not be withdrawn. Marketing  of the TracCell 2000 mapping  system,
if  developed, outside of  the United States  will not require  FDA clearance or
approval, but other regulatory  bodies may submit  the technology to  additional
testing.
 
    The  AcCell 3000, currently in the initial stages of development, may not be
sold in  the United  States unless,  and  until, the  Company has  obtained  FDA
approval  of a PMA  submission. Management estimates that  the entire process of
receiving pre-market approval of  the complete system could  take more than  two
years after submission of initial clinical data. There can be no assurances that
the  Company  will  receive  FDA  marketing approval  for  such  product  or, if
received, that such approval will not be withdrawn. Marketing of the AcCell 3000
outside of the  United States will  not require FDA  clearance or approval,  but
other regulatory bodies may submit the technology to additional testing.
 
    The  Company  has  secured  the  services  of  an  independent  devices  and
diagnostics consulting company  to guide the  process of design,  implementation
and  monitoring  of  field  trials and  submission  of  documentation  for these
cytopathology products to the FDA.
 
    Marketing of the  Company's minimum inhibitory  concentration/identification
("MIC/ID") microbiology products in the United States requires the submission to
the  FDA of a 510(k) Notification. With  respect to the Company's Alamar product
line, 510(k)  Notifications must  be  filed and  cleared  with respect  to  each
antibiotic  used. To date,  the Company has  submitted 510(k) Notifications, and
obtained findings of "substantial equivalence," for 32 antibiotics commonly used
to fight "gram  negative" bacteria  and 21  antibiotics commonly  used to  fight
"gram  positive" bacteria. The Company has also received marketing clearance for
four separate  510(k)  Notifications with  respect  to the  READar  system.  The
Company   may  submit  applications  to  add  individual  antibiotics  to  those
previously cleared, as the market warrants. However, there can be no  assurances
that clearances will continue to be obtained.
 
    The  Company is developing a new  microbiology system for the susceptibility
market segment to  automatically analyze  the zone  size using  the Kirby  Bauer
method.  The Company licensed  the software algorithm  technology from a Spanish
firm and will integrate the software into the hardware developed by the Company.
The complete system will require submission of a 510(k) Notification. There  can
be no assurances that the Company can develop the hardware nor that the licensed
software  is adequate to submit  a 510(k) Notification or  that the Company will
receive the  FDA  marketing  clearance.  Marketing of  the  new  disk  diffusion
product,  if  developed, outside  the  United States  will  not require  any FDA
submissions, clearances or approvals, but other regulatory bodies may submit the
technology to additional testing.
 
    Pursuant to a Research and Development Agreement with RADCO Ventures,  Inc.,
a  research  and  development  company  ("RADCO"),  RADCO  and  the  Company are
attempting to develop a new automated microbiology product line using Sensititre
and Alamar technologies. Such a product will require the submission of a  510(k)
Notification. Management estimates that the entire process of receiving approval
of  the  complete system  could take  up to  12 months  after the  submission of
initial clinical data. There can be no assurances that the Company will  receive
FDA  marketing approval for such  a product or, if  received, that such approval
will not be withdrawn. Marketing of the new automated microbiology product  line
outside  the United States  will not require any  FDA submissions, clearances or
approvals, but other regulatory bodies  may submit the technology to  additional
testing.
 
    The  Company also  intends to seek  ISO 9001  registration, an international
manufacturing quality standard,  and to seek  the "CE" mark  for its AcCell  and
TracCell  products. The CE mark  is recognized by countries  that are members of
the  European   Union   and   the   European   Free   Trade   Association   and,
 
                                       11
<PAGE>
effective in 1998, will be required to be affixed to all medical devices sold in
the  European  Union. The  AcCell  2000/2001 successfully  completed  all safety
evaluations required to obtain UL, CSA and international certifications on  June
18,  1996.  Compliance  testing  against FCC  emissions  standards  and  the EMC
Directive was initiated on June 19, 1996 and is expected to be completed  before
August  1, 1996. The AcCell  2000/2001 is expected to  be certified as complying
with CE Mark requirements upon completion of this process. No assurances can  be
given  that the Company will obtain the  CE mark its AcCell or TracCell products
or satisfy ISO 9001 standards, or that any product which the Company may develop
or commercialize will obtain the  CE mark, or will be  able to obtain any  other
required regulatory clearance or approval on a timely basis, or at all.
 
    There can be no assurances that the Company will be able to obtain necessary
regulatory  approvals or clearances in the United States, or internationally, on
a timely basis, or  at all. 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.
 
    In   addition,  the  Company   is  subject  to   certain  FDA  registration,
record-keeping and  reporting requirements,  is obligated  to follow  FDA  "Good
Manufacturing  Practices"  ("GMP") regulations  and is  subject to  periodic FDA
inspection.  The  manufacturing  facility  used  to  manufacture  the  Company's
microbiology kits currently meets applicable GMP guidelines and FDA regulations.
The Company's cytopathology manufacturing facility has been designed to meet GMP
standards,  although such  compliance is not  required and the  facility has not
been audited  for compliance.  There can  be no  assurances, however,  that  the
facilities  used to manufacture the Company's products will continue to meet GMP
guidelines. 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.
 
    UNCERTAINTY OF MARKET  ACCEPTANCE AND INITIAL  HIGHER COST OF  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 on market acceptance of the AcCell 2000/2001 and the TracCell 2000,
if approved for marketing by the FDA, for use in connection with cervical cancer
screening by clinical laboratories and health care providers. Market  acceptance
will  depend on the Company's ability to demonstrate to these parties that there
are limitations  associated with  conventional patient  data management  of  Pap
smear samples, slide handling and mapping, and documentation of slide review and
that  the Company's  products can  substantially mitigate  these shortcomings by
increasing efficiency, diagnostic accuracy and  documenting the scope of  sample
review.  The initial cost of equipping  a clinical laboratory with the Company's
products for use in  connection with cervical cancer  screening will increase  a
laboratory's equipment expenditures. There can be no assurances that the Company
can  demonstrate  to such  parties that  the higher  cost of  equipping existing
laboratories with  the  AcCell 2000/2001  and  TracCell 2000,  if  approved  for
marketing  by the FDA,  will be offset  by a reduction  in costs associated with
increased efficiency and  decreased malpractice liability  risks resulting  from
more  accurate  diagnostics and  better  document slide  review  procedures. The
Company believes that many clinical laboratories offer Pap 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 2000/2001 and the TracCell 2000.
 
    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 United States  laboratories, it is  likely
that  a significant portion of the sales  of AcCell 2000/2001 and TracCell 2000,
if approved  for  marketing by  the  FDA, sales  will  be concentrated  among  a
relatively  small  number  of customers.  The  Company  will need  to  foster an
awareness of and acceptance by these potential customers of the AcCell 2000/2001
and the TracCell 2000, for patient data management, slide handling, mapping  and
 
                                       12
<PAGE>
slide  review documentation and  the benefits of  such systems over conventional
methods. The Company's dependence on sales to large laboratories may  strengthen
the purchasing leverage of these potential customers. There can be no assurances
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.
 
    TECHNOLOGICAL  CHANGE  AND  COMPETITION.    The  Company's  AcCell 2000/2001
currently faces, and the TracCell 2000 mapping system, if successfully developed
and approved  by the  FDA, will  face  competition from  companies that  may  be
developing  competing systems. The  Company believes that  many of the Company's
existing  and  potential  competitor  companies  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 which  currently  market imaging  systems  to re-examine  or  rescreen
conventional  Pap smears previously diagnosed as negative as was another company
that is developing devices for the production and analysis of Pap smear  slides.
If  either company marketing rescreening products  receives FDA approval for one
as a primary screening system to replace conventional Pap smears or if automated
analysis systems are developed and receive FDA approval, the Company's  business
financial  condition and results of operations could be materially and adversely
affected.
 
    The market for  the Company's 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  and  bioMerieux  Vitek.  These  companies  market  a  broad  range of
medically related products  and have  resources far  greater than  those of  the
Company.  Difco Laboratories,  Inc. ("Difco")  has been  issued a  United States
patent covering technology similar  to the Alamar technology  covered in one  of
the  Company's patents. The  Company's patent is  intended to provide protection
for the relevant  Alamar technology when  used in conjunction  with a  "poising"
agent used to stabilize the bacterial susceptibility process. The Company is not
aware  of  Difco's  plans,  if any,  to  exploit  the patent.  There  can  be no
assurances 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 Alamar microbiology products. In addition,  the Company is aware of  several
potential  competitors with similar  competitive advantages in  markets that the
Company intends to enter in  the future. There can  be no assurances that  other
technologies  or  products,  which  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  cytopathology and  medical diagnostic  industries are  characterized by
rapid product  development and  technological advances.  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
assurances 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  or results  or
operations.
 
    RISK OF LITIGATION; PRODUCT LIABILITY INSURANCE; POTENTIAL UNAVAILABILITY OF
INSURANCE.   The  commercial screening of  Pap smears has  been characterized by
significant malpractice  litigation. The  Company faces  a risk  of exposure  to
product  liability, errors and omissions  or other claims in  the event that the
use of its  AcCell 2000/2001 or  other future potential  products including  the
TracCell 2000, if approved
 
                                       13
<PAGE>
   
for  marketing  by the  FDA, is  alleged to  have resulted  in a  false negative
diagnosis. While  the AcCell  2000/2001 is  a slide  handling and  patient  data
management  instrument and  the TracCell  2000 is  being designed  to facilitate
slide mapping and human review that do not purport to diagnose any slide,  there
can  be no  assurances that  the Company  will avoid  significant liability. The
Company currently  maintains  a  product liability  insurance  policy  providing
maximum  coverage of $10,000,000 and per occurrence coverage of $10,000,000. 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 assurances 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
product  recall could have a material  adverse effect on the Company's business,
financial condition  and  results of  operations.  The Company  also  faces  the
possibility  that defects in designs or manufacture of its products could result
in product recall.
    
 
    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 the timing and  level of market acceptance  of
the  Company's  products,  the  level of  expenditures  associated  with product
development activities, the results  of factors, many of  which are outside  the
Company's  control.  These  factors  include  the  timing  of  these activities,
including the TracCell  2000 and  TracCell 3000,  the effectiveness  of the  OEM
distributor   in  the  sale  of  the  AcCell  2000/2001  and,  possibly,  future
cytopathology products,  the  likelihood  and  timing  and  costs  in  obtaining
necessary regulatory approval of 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   its  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  and 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 contribute to  the volatility of the  Company's stock price.  The
Company's  expenses 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.  Company's  products
requiring such approval.
 
    ENVIRONMENTAL REGULATION.   The Company is  subject to a  variety of  local,
state  and federal and  foreign government regulations  relating to the storage,
discharge, handling, emission,  generation, manufacture and  disposal of  toxic,
infectious  or  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 assurances 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,
 
                                       14
<PAGE>
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 would have a material
adverse effect on  the Company's  business, financial condition  and results  of
operations.
 
    UNCERTAINTY  OF PROFITABLE MANUFACTURING.   At the end  of 1995, the Company
acquired Sensititre's manufacturing  facility near  London, England.  Sensititre
has  been manufacturing Sensititre products for many years in the U.K. and since
July 1995, has  been manufacturing Alamar  products at such  facility. Prior  to
July  1995, however, the  Company manufactured Alamar products  at a facility in
Sacramento, California. The Company was unable to reduce manufacturing costs  at
the  Sacramento  facility to  a  level that  would  have allowed  for profitable
operations. While it is expected that  consolidation of the Alamar product  line
manufacturing  effort in  the U.K. facility  may result in  certain economies of
scale, there can be  no assurances that the  Company's Alamar product line  will
ever be manufactured in a cost-effective manner.
 
    The  Company's Cytopathology Division has  only recently begun assembling of
the AcCell 2000  and AcCell  2001 at  its Chicago  location. In  June 1996,  the
Company  entered into its first OEM Agreement, for the exclusive distribution of
certain cytopathology  products  in the  Western  Hemisphere. There  can  be  no
assurances  that the Company will be able  to sell sufficient numbers of systems
or   develop   volume   manufacturing   processes,   that   will   lead   to   a
profitable/cost-effective manufacture of the AcCell products.
 
    The  Company's  semi-automated and  fully-automated instruments  for reading
results of  microbiology diagnostic  test kits,  READar, PIPETar  and ARIS,  are
manufactured  for the  Company by  the developers of  such products  or by other
outside vendors. There  can be  no assurances that  any of  these developers  or
vendors  will  be able  to  manufacture the  Alamar  product line's  current and
proposed automated reading or related products in a cost-effective manner.
 
    DEPENDENCE ON SUPPLIERS.  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 materials 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 or at  all, which would have a
material adverse effect on the  Company's business. 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.
 
    IMPACT  OF MEDICARE, MEDICAID  AND OTHER THIRD-PARTY  REIMBURSEMENT.  In the
United States, many Pap smears and MIC/ID testing are currently paid for by  the
patient,  and the level  of reimbursement by third-party  payers that do provide
reimbursement  varies  considerably.  Third-party  payers  (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 screenings  and MIC/ID
testing provided by such  payers or by not  providing any reimbursement at  all.
Restrictions  on reimbursement for  Pap screenings and  MIC/ID testing may limit
the price which the Company can charge for its products or reduce the demand for
them. In addition, if Medicare and Medicaid do not provide for reimbursement for
Pap screenings and  MIC/ID testing,  or if the  level of  such reimbursement  is
significantly  below the  amount laboratories  and hospitals  charge patients to
perform Pap  screenings  and  MIC/ID  testing, respectively,  the  size  of  the
potential  market  available to  the Company  may  be reduced.  There can  be no
assurances that the level  of reimbursement to  laboratories for Pap  screenings
and  MIC/ID testing will achieve or be  maintained at levels necessary to permit
the Company to generate substantial revenues or be profitable.
 
                                       15
<PAGE>
    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  fundamental
changes  to  the health  care  delivery system.  Health  care reform  could, for
example, result in  a reduction  in the recommended  frequency of  Pap tests  or
limitations  on reimbursement  based on  the frequency  of Pap  tests and MIC/ID
testing, which would likely  reduce the demand  for the Company's  cytopathology
products  in connection with  Pap smear screening  and microbiology products, as
the case may be.  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 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 such proposal  or
adoption  may have on the Company. There can be no assurances 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 in the United States 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  assurances that the Company will be able
to successfully  commercialize its  products,  or any  future products,  in  any
foreign market.
 
    NEED  TO  MANAGE EXPANDING  OPERATIONS.   If  the  Company is  successful in
achieving market acceptance for  its AcCell 2000/2001  systems and the  TracCell
2000  (if regulatory  approvals are obtained),  the Company will  be required to
expand its operations,  particularly in  the areas  of sales  and marketing  and
manufacturing.  As  the  Company expands  its  operations in  these  areas, 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 will  be required to implement and  improve
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.
 
    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,
 
                                       16
<PAGE>
in  particular,  Peter  P.  Gombrich,  the  Company's  Chief  Executive Officer,
President and Chairman of the Board. 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 assurances that the Company will be successful in attracting and
retaining such personnel.
 
    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 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 a diversion of
management's attention and resources, which could have a material adverse effect
on the  Company's  business,  operating results  and  financial  condition.  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 intend to  pay cash  or other  dividends in the
foreseeable future. See "Dividend Policy."
 
    AUTHORIZATION AND  POTENTIAL ISSUANCE  OF PREFERRED  STOCK.   The  Company's
Certificate  of Incorporation  authorizes the  issuance of  preferred stock with
such designation, 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 assurances that the Company
will not, under certain circumstances, issue shares of its preferred stock.
 
   
    OUTSTANDING WARRANTS AND  OPTIONS.  Investors  purchasing Shares will  incur
dilution  to the extent outstanding stock options and warrants are exercised. As
of the date of  this Prospectus, there  are outstanding immediately  exercisable
(i)  warrants to  purchase 5,969,333 shares  of Common Stock  at exercise prices
ranging from $0.25 to $5.00 per share with a weighted average exercise price  of
$3.21, and (ii) options to purchase 1,652,971 shares of Common Stock at exercise
prices ranging from $0.63 to $8.38 per share.
    
 
   
    SHARES  ELIGIBLE FOR FUTURE  SALE; REGISTRATION RIGHTS.   As of  the date of
this Prospectus,  there  are  18,631,453 shares  of  Common  Stock  outstanding.
Approximately 13,000,000 shares of Common Stock or shares issuable upon exercise
of  currently exercisable  warrants and  options sold  or registered  for resale
pursuant to registration statements,  or for which  there exist exemptions  from
the  registration requirements  under the  Securities Act,  are freely tradeable
without restriction or requirement of  further registration, unless such  shares
are  held  by  "affiliates" of  the  Company (as  that  term is  defined  in the
Securities Act  and  the regulations  promulgated  thereunder) and  subject,  in
certain
    
 
                                       17
<PAGE>
   
instances, to the prospectus delivery requirements under the Securities Act. The
balance  of the shares were  sold by the Company  in reliance on exemptions from
the registration requirements of  the Securities Act.  In addition, the  Company
has  granted certain demand, and/or piggyback registration rights, relating to a
substantial portion of the restricted shares and a substantial number of  shares
of  Common Stock underlying warrants issued  by the Company. Any future exercise
of such  registration  rights, and  sale  of  such securities,  will  result  in
dilution in the interest of the Company's then existing stockholders.
    
 
    No  prediction can be  made as to the  effect, if any,  that future sales of
additional shares of Common Stock or  the availability of such shares for  sale,
whether  pursuant to  exercised registration rights  or under Rule  144 or other
applicable exemptions under the Securities Act, will have on the market price of
the Common Stock  prevailing from  time to time.  Nevertheless, the  possibility
that  substantial amounts of Common  Stock may be sold  in the public market may
adversely affect prevailing market prices for the Common Stock and could  impair
the  ability of  the Company  to raise  capital through  the sale  of its equity
securities.
 
                                       18
<PAGE>
                                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, for its
business and does not anticipate paying  any cash dividends on its Common  Stock
in the foreseeable future.
 
                          PRICE RANGE OF COMMON STOCK
 
    The  Company's Common  Stock is  traded in  the over-the-counter  market and
quoted on Nasdaq under the symbol "ACMI."  The table below sets forth the  range
of  high and low  closing prices for the  Common Stock as  reported on Nasdaq in
each completed quarter during the  Company's two most recently completed  fiscal
years,  the transition  period ended December  31, 1995;  each completed quarter
during the current fiscal year and a portion of the current quarter.
 
   
<TABLE>
<CAPTION>
                                                                                                    HIGH        LOW
                                                                                                  ---------  ---------
<S>                                                                                               <C>        <C>
COMMON STOCK
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)
  Oct. 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 1, 1996)..........................................................       6.75       6.13
</TABLE>
    
 
- ------------------------
(1) On December 31,  1995, the Company  changed its fiscal  year from October  1
    through  September  30  to January  1  through December  31.  Therefore, the
    "Transition Period" includes October 1, 1995 through December 31, 1995.
 
   
    On July 1, 1996 the closing price of the Common Stock as reported by  Nasdaq
was  $6.25  per  share. At  July  1,  1996, the  Company  had  approximately 260
stockholders of record and  estimates that it  had approximately 560  beneficial
owners.
    
 
                                       19
<PAGE>
          UNAUDITED PRO FORMA CONDENSED COMBINED FINANCIAL STATEMENTS
 
   
    The  following unaudited  pro forma condensed  combined financial statements
give effect of  the Merger of  Alamar and  AccuMed and the  purchase of  certain
assets  and  the  assumption  of  certain  liabilities  from  Sensititre  US and
Sensititre UK by AccuMed on a purchase basis.
    
 
   
    The unaudited pro forma condensed combined statements of operations for  the
year  ended September  30, 1995  and the  three months  ended December  31, 1995
assume that  the Merger  with AccuMed  and  the purchase  of Sensititre  US  and
Sensititre UK occurred on October 1, 1994.
    
 
   
    The  pro  forma  adjustments are  based  on preliminary  assumptions  of the
allocation of the purchase  price and are subject  to substantial revision  once
evaluation  of  the fair  value of  the  assets and  liabilities of  AccuMed are
completed. Actual purchase accounting adjustments may differ from the pro  forma
adjustments presented herein.
    
 
   
    THE  UNAUDITED  PRO FORMA  CONDENSED COMBINED  FINANCIAL STATEMENTS  ARE NOT
NECESSARILY INDICATIVE OF THE RESULTS THAT  ACTUALLY WOULD HAVE OCCURRED IF  THE
MERGERS  HAD  BEEN  COMPLETED  ON  THE  ASSUMED  DATES  NOR  ARE  THE STATEMENTS
INDICATIVE OF FUTURE COMBINED FINANCIAL POSITION OR EARNING.
    
 
   
    The pro forma condensed financial  statements should be read in  conjunction
with  the financial statements of Alamar for the fiscal year ended September 30,
1995 and the financial statements for  the transition period ended December  31,
1995.
    
 
                                       20
<PAGE>
   
                           ACCUMED INTERNATIONAL, INC
    
   
              (FORMERLY ALAMAR BIOSCIENCES, INC. AND SUBSIDIARIES)
    
   
              PRO FORMA CONDENSED COMBINED STATEMENT OF OPERATIONS
    
   
                     FOR THE YEAR ENDED SEPTEMBER 30, 1995
    
 
   
<TABLE>
<CAPTION>
                                                    HISTORICAL
                                                  --------------
                                                   ALAMAR YEAR
                                                      ENDED
                                                  SEPTEMBER 30,
                                                       1995
                                                  --------------                       HISTORICAL
                                                                  ----------------------------------------------------
                                                                   ACCUMED (1)    SENSITITRE US (2)  SENSITITRE UK (2)
                                                                  --------------  -----------------  -----------------
                                                                   (UNAUDITED)       (UNAUDITED)        (UNAUDITED)
<S>                                               <C>             <C>             <C>                <C>
Net Revenues....................................  $      514,776  $    2,609,233    $     409,360      $     639,561
Cost of revenues................................      (1,431,187)     (1,510,143)        (247,860)          (457,056)
                                                  --------------  --------------  -----------------  -----------------
                                                        (916,411)      1,099,090          161,500            182,505
                                                  --------------  --------------  -----------------  -----------------
Operating Expenses
  General and Administration....................       2,094,890       1,040,083          208,420             74,589
  Research and Development......................         386,882         453,277                0             88,872
  Sales and Marketing...........................         309,208       1,187,177                0                  0
                                                  --------------  --------------  -----------------  -----------------
Total operating expenses........................       2,790,980       2,680,537          208,420            163,461
                                                  --------------  --------------  -----------------  -----------------
Income (Loss) from operations...................      (3,707,391)     (1,581,447)         (46,920)            19,044
Interest income.................................           7,949          12,930                0                  0
Interest (expense) .............................         (46,657)        (40,201)               0                  0
Other income ...................................          32,566           1,308                0                  0
Other (expense).................................         (45,777)              0                0                  0
                                                  --------------  --------------  -----------------  -----------------
Earnings (Loss) before income taxes.............      (3,759,310)     (1,607,410)         (46,920)            19,044
Provision for income taxes......................             800               0                0                  0
                                                  --------------  --------------  -----------------  -----------------
Net income (loss) ..............................  $   (3,760,110) $   (1,607,410)   $     (46,920)     $      19,044
                                                  --------------  --------------  -----------------  -----------------
                                                  --------------  --------------  -----------------  -----------------
Net loss per common and common equivalent share
 ...............................................  $        (0.59) $        (0.92)
                                                  --------------  --------------
                                                  --------------  --------------
Weighted average shares outstanding.............       6,375,627       1,748,940
                                                  --------------  --------------
                                                  --------------  --------------
</TABLE>
    
 
                                       21
<PAGE>
 
   
<TABLE>
<CAPTION>
                                                           PRO FORMA                         PRO FORMA
                                                --------------------------------  --------------------------------
                                                    ACCUMED        ACCUMED AS     ALAMAR/ ACCUMED     ALAMAR AS
                                                   SENSITIVE      ADJUSTED, FOR     ADJUSTMENTS     ADJUSTED, FOR
                                                  ADJUSTMENTS    THE YEAR ENDED   ---------------  THE YEAR ENDED
                                                ---------------   SEPTEMBER 30,                     SEPTEMBER 30,
                                                                    1995 (3)        (UNAUDITED)       1995 (4)
                                                  (UNAUDITED)    ---------------                   ---------------
                                                                   (UNAUDITED)                       (UNAUDITED)
<S>                                             <C>              <C>              <C>              <C>
Net Revenues..................................  $   (193,000)(A) $     3,485,154  $          0     $     3,979,930
Cost of revenues..............................       109,000(B)       (2,108,059)            0          (3,537,246)
                                                ---------------  ---------------  ---------------  ---------------
                                                     (84,000)          1,359,095             0             442,684
                                                ---------------  ---------------  ---------------  ---------------
Operating Expenses
  General and Administration..................       100,000(C)        1,423,092       284,570(E)        3,602,552
  Research and Development....................             0             542,149             0             929,031
  Sales and Marketing.........................             0           1,187,177             0           1,496,385
                                                ---------------  ---------------  ---------------  ---------------
Total operating expenses......................       100,000           3,152,418       284,570           8,227,968
                                                ---------------  ---------------  ---------------  ---------------
Income (Loss) from operations.................      (184,000)         (1,793,323)     (284,570)         (5,785,284)
Interest income ..............................             0              12,930             0              20,679
Interest (expense)............................       (35,475)(D)         (75,676)            0            (122,333)
Other income..................................             0               1,308             0              33,874
Other (expense) ..............................             0                   0             0             (45,777)
                                                ---------------  ---------------  ---------------  ---------------
Earnings (Loss) before income taxes ..........      (219,475)         (1,854,761)     (284,570)         (5,898,841)
Provision for income taxes....................             0                   0             0                 800
                                                ---------------  ---------------  ---------------  ---------------
Net income (loss).............................  $   (219,475)    $    (1,854,781) $   (284,570)    $    (5,899,441)
                                                ---------------  ---------------  ---------------  ---------------
                                                ---------------  ---------------  ---------------  ---------------
Net loss per common and common equivalent
 share........................................                   $         (1.06)                  $         (0.60)
                                                                 ---------------                   ---------------
                                                                 ---------------                   ---------------
Weighted average shares outstanding...........                         1,748,940                         9,831,582
                                                                 ---------------                   ---------------
                                                                 ---------------                   ---------------
</TABLE>
    
 
- ------------------------
   
(1)  includes the  twelve months  and nine months  ended September  30, 1995 for
    AccuMed and Sensititre US/UK, respectively.
    
 
   
(2) includes the three months ended  December 31, 1994, before the  acquisitions
    by AccuMed.
    
 
   
(3)  AccuMed Consolidated  includes AccuMed,  Sensititre US,  and Sensititre UK,
    Ltd. after purchase accounting adjustments
    
 
   
(4)  Alamar  Consolidated   includes  Alamar  Biosciences   Inc.,  and   AccuMed
    Consolidated  after purchase accounting adjustments. Weighted average shares
    outstanding are  9,831,682  which  represents 6,375,637  shares  for  Alamar
    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 Alamar and 4,178,104
    shares issued to AccuMed) which does not include the 2,000,000 shares issued
    but subject to forfeiture.
    
 
                                       22
<PAGE>
   
                   ALAMAR BIOSCIENCES, INC. AND SUBSIDIARIES
    
   
              PRO FORMA CONDENSED COMBINED STATEMENT OF OPERATIONS
    
   
                     FOR THE YEAR ENDED SEPTEMBER 30, 1995
    
 
   
                   ALAMAR BIOSCIENCES, INC., AND SUBSIDIARIES
    
 
   
                     NOTES TO PRO FORMA CONDENSED COMBINED
    
   
                            STATEMENT OF OPERATIONS
    
 
   
                               SEPTEMBER 30, 1995
    
   
                                  (UNAUDITED)
    
 
   
(A) To eliminate intercompany sales from Sensititre UK to Sensititre US.
    
 
   
(B)  To  eliminate  intercompany  profit  from the  cost  of  product  sold from
    Sensititre UK to Sensititre US.
    
 
   
(C) To  reduce  amortization  expense  ($20,000) for  the  amortization  of  the
    purchase  price  of AccuMed,  Inc. in  excess  of the  fair market  value of
    acquired assets, less  assumed liabilities, and  transaction costs  incurred
    with  the Merger  of AccuMed,  Inc. amortized  over a  10 year  life, and to
    adjust amortization expense for Sensititre US and Sensititre UK.
    
 
   
    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 US product line.
    
 
   
(D)  To adjust interest expense for $35,475,  assuming that the $430,000 loan to
    finance the Sensititre acquisition occurred on October 1, 1994.
    
 
   
(E) To adjust amortization expense for the amortization of the purchase price of
    AccuMed, Inc. in excess  of the fair market  value of acquired assets,  less
    assumed  liabilities,  and transaction  costs  incurred with  the  Merger of
    AccuMed, Inc. amortized  over a  10 year  life, and  to adjust  amortization
    expense for Sensititre US and Sensititre UK.
    
 
                                       23
<PAGE>
   
                          ACCUMED INTERNATIONAL, INC.
    
   
              (FORMERLY ALAMAR BIOSCIENCES, INC. AND SUBSIDIARIES)
    
   
              PRO-FORMA CONDENSED COMBINED STATEMENT OF OPERATIONS
    
   
                  FOR THE THREE MONTHS ENDED DECEMBER 31, 1995
    
 
   
<TABLE>
<CAPTION>
                                              HISTORICAL       PRO-FORMA        PRO-FORMA          PRO-FORMA
                                           ----------------  --------------  ----------------  -----------------
                                               ACCUMED        ACCUMED INC.     ADJUSTMENTS         PRO-FORMA
                                            INTERNATIONAL,     (ACQUIREE)    ----------------    CONSOLIDATED
                                                 INC.        --------------                    -----------------
                                           ----------------   (UNAUDITED)      (UNAUDITED)        (UNAUDITED)
                                              (AUDITED)
<S>                                        <C>               <C>             <C>               <C>
Net Revenues.............................   $      100,130   $    1,009,376  $     (73,005)(A) $    1,036,501
Cost of Revenues.........................         (338,730)        (830,497)        71,892(B)      (1,097,335)
                                           ----------------  --------------  ----------------  -----------------
                                                  (238,600)         178,879         (1,113)           (60,834)
Operating Epenses
  General and Administration.............        1,418,797          758,066              0          2,176,863
  Research and Development...............        3,997,600          338,178              0          4,335,778
  Sales & Marketing......................            7,197          289,360              0            296,557
                                           ----------------  --------------  ----------------  -----------------
Total Operating Expenses.................        5,423,594        1,385,604              0          6,809,198
                                           ----------------  --------------  ----------------  -----------------
Income (Loss) from operations............       (5,662,194)      (1,206,725)        (1,113)        (6,870,032)
                                           ----------------  --------------  ----------------  -----------------
Interest Income..........................            4,748                0              0              4,748
Interest (expense).......................          (10,862)          (1,948)             0            (12,810)
Other....................................          (72,929)               0              0            (72,929)
                                           ----------------  --------------  ----------------  -----------------
Loss before income taxes.................       (5,741,237)      (1,208,673)        (1,113)        (6,951,023)
Provision for income taxes ..............              800                0              0                800
                                           ----------------  --------------  ----------------  -----------------
Net loss.................................   $   (5,742,037)  $   (1,208,673) $      (1,113)    $   (6,951,823)
                                           ----------------  --------------  ----------------  -----------------
                                           ----------------  --------------  ----------------  -----------------
Net loss per common share ...............   $        (0.49)  $        (0.10) $       (0.00)    $        (0.59)
Weighted average shares outstanding......       11,742,980       11,742,980     11,742,980         11,742,980
</TABLE>
    
 
                                       24
<PAGE>
   
        ACCUMED INTERNATIONAL, INC. (FORMERLY ALAMAR BIOSCIENCES, INC.)
    
   
                 AND SUBSIDIARIES PRO FORMA CONDENSED COMBINED
    
   
      STATEMENT OF OPERATIONS FOR THE THREE MONTHS ENDED DECEMBER 31, 1995
    
 
   
                 ACCUMED INTERNATIONAL, INC., AND SUBSIDIARIES
    
 
   
                     NOTES TO PRO FORMA CONDENSED COMBINED
    
   
                            STATEMENT OF OPERATIONS
    
 
   
                               DECEMBER 31, 1995
    
   
                                  (UNAUDITED)
    
 
   
(A)  To eliminate intercompany sales from  AccuMed International Limited (UK) to
    AccuMed Inc. (US)
    
 
   
(B) To eliminate intercompany profit from the cost of product sold from  AccuMed
    International Limited (UK) to AccuMed Inc. (US)
    
 
                                       25
<PAGE>
                              SELLING STOCKHOLDERS
 
   
    The  following  table  sets  forth  information  as  of  July  1,  1996 (the
"Reference Date") with respect to the  beneficial ownership of shares of  Common
Stock  by each  of the  Selling Stockholders. At  the Reference  Date there were
18,631,453 shares of Common Stock outstanding.
    
 
   
<TABLE>
<CAPTION>
                                                                 SHARES BENEFICIALLY                  SHARES BENEFICIALLY
                                                                    OWNED PRIOR TO                        OWNED AFTER
                                                                     OFFERING (1)        SHARES TO        OFFERING(1)
                                                                ----------------------    BE SOLD    ----------------------
NAME OF BENEFICIAL OWNER                                         NUMBER      PERCENT    IN OFFERING   NUMBER      PERCENT
- --------------------------------------------------------------  ---------  -----------  -----------  ---------  -----------
<S>                                                             <C>        <C>          <C>          <C>        <C>
M. Kingdon Offshore N.V.......................................     78,000           *       78,000           0           *
Nordbanken....................................................     40,000           *       40,000           0           *
Kingdon Partners, L.P.........................................     26,000           *       26,000           0           *
Kingdon Associates, L.P.......................................     26,000           *       26,000           0           *
Christiana Fonds SA...........................................     25,000           *       25,000           0           *
Saga Securities SA............................................     10,000           *       10,000           0           *
Republic New York Securities f/o/b ...........................     75,000           *       10,000      65,000           *
 Samisa Investment Corp.
Republic New York Securities f/o/b ...........................     85,000           *       10,000      75,000           *
 Emerge Capital
Republic New York Securities f/o/b ...........................     10,000           *       10,000           0           *
 Beko Investment Services
Republic New York Securities f/o/b ...........................      5,000           *        5,000           0           *
 Beko Investment Client A/C
Republic New York Securities f/o/b ...........................      5,000           *        5,000           0           *
 Fondspartners SA
Republic New York Securities f/o/b ...........................      4,000           *        4,000           0           *
 Bq. Prive Edmond Rothschild
Republic New York Securities f/o/b ...........................     18,000           *        3,000      15,000           *
 J. Watling
Republic New York Securities f/o/b ...........................     18,000           *        3,000      15,000           *
 Kelebe Investment Corp.
</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.
    
 
    The Company has agreed to indemnify certain of the Selling Stockholders  and
the  Selling Stockholders have  agreed to indemnify  the Company against certain
civil liabilities, including liabilities under the Securities Act.
 
    Except as noted in the footnotes above, none of the Selling Stockholders has
held any office or maintained any material relationship with the Company  during
the past three years.
 
                                       26
<PAGE>
                              PLAN OF DISTRIBUTION
 
    The  Common Stock  and Warrants  offered hereby may  be sold  by the Selling
Stockholders  from   time  to   time  as   market  conditions   permit  in   the
over-the-counter market, or otherwise, at prices and terms then prevailing or at
prices  related to the then current market price, or in negotiated transactions.
The shares offered hereby may be sold  by one or more of the following  methods,
without  limitation: (a) a  block trade in  which a broker  or dealer so engaged
will attempt to sell the shares as  agent but may position and resell a  portion
of  the block  as principal  to facilitate the  transaction; (b)  purchases by a
broker or  dealer as  principal and  resale by  such broker  or dealer  for  its
account  pursuant to  this Prospectus;  (c) ordinary  brokerage transactions and
transactions in  which  the broker  solicits  purchasers; and  (d)  face-to-face
transactions   between  sellers  and  purchasers  without  a  broker-dealer.  In
effecting sales,  brokers or  dealers engaged  by the  Selling Stockholders  may
arrange for other brokers or dealers to participate. Such brokers or dealers may
receive  commissions or  discounts from  Selling Stockholders  in amounts  to be
negotiated immediately prior to the sale. Such brokers or dealers and any  other
participating  brokers or dealers may be  deemed to be "underwriters" within the
meaning of the Securities  Act in connection with  such sales. In addition,  any
securities covered by this Prospectus that qualify for sale pursuant to Rule 144
under  the Securities Act might  be sold under Rule  144 rather than pursuant to
this Prospectus.
 
                                 LEGAL MATTERS
 
    The legality of  the securities offered  by this Prospectus  will be  passed
upon for the Company by Graham & James LLP, Sacramento, California.
 
                                    EXPERTS
 
    The  balance  sheet  of  AccuMed,  Inc as  of  December  31,  1994,  and the
statements of operations, stockholder's 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, stockholder's 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,  as  incorporated  by  reference  in   the
Registration  Statement of which this Prospectus forms  a part a part, have been
incorporated herein  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  Coopers   &  Lybrand  L.L.P.,   independent
accountants,  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 by  reference in the Registration
Statement of which this Prospectus forms  a part, have been incorporated  herein
in  reliance on the report of  Coopers & Lybrand, independent accountants, 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, incorporated  by reference  herein and elsewhere  in the  Registration
Statement  of which this  Prospectus forms a part  from the Company's Transition
Report of Form 10-KSB  for the transition period  ended December 31, 1995,  have
been  included therein and incorporated by reference herein and elsewhere in the
Registration Statement of which  this Prospectus forms a  part in reliance  upon
the  report of KPMG Peat Marwick  LLP, independent certified public accountants,
included therein and incorporated herein by reference, and upon the authority of
said firm as experts in accounting and auditing.
 
                                       27
<PAGE>
- -------------------------------------------
                                     -------------------------------------------
- -------------------------------------------
                                     -------------------------------------------
 
    No  dealer, salesperson or any other person  has been authorized to give any
information or to make  any representations other than  those contained in  this
Prospectus  and, if given or made,  such information or representations must not
be relied  upon  as  having  been  authorized by  the  Company  or  any  Selling
Stockholder.  This  Prospectus  does not  constitute  an  offer to  sell  or the
solicitation of any offer to  buy any security other  than the shares of  Common
Stock  offered by this Prospectus, nor does it  constitute an offer to sell or a
solicitation of any offer  to buy the  shares of Common Stock  by anyone in  any
jurisdiction  in which such offer or solicitation is not authorized, or in which
the person making such offer  or solicitation is not qualified  to do so, or  to
any  person to whom it  is unlawful to make  such offer or solicitation. Neither
the delivery of  this Prospectus nor  any sale made  hereunder shall, under  any
circumstances,  create  any  implication that  information  contained  herein is
correct as of any time subsequent to the date hereof.
 
                                 255,000 SHARES
 
                                    ACCUMED
                                 INTERNATIONAL,
                                      INC.
 
                                  COMMON STOCK
 
                             ---------------------
 
                                   PROSPECTUS
 
                             ---------------------
 
- -------------------------------------------
                                     -------------------------------------------
- -------------------------------------------
                                     -------------------------------------------
<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 registration fee).
 
   
<TABLE>
<S>                                                                <C>
SEC registration fee.............................................  $     566
Printing and engraving expenses..................................      3,000
Accounting fees and expenses.....................................      2,000
Legal fees and expenses..........................................      3,000
Blue Sky fees and expenses.......................................        500
Miscellaneous....................................................        934
                                                                   ---------
    TOTAL........................................................  $  10,000
                                                                   ---------
                                                                   ---------
</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 were issued.
 
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.
 
    The  Company's  officers  and  directors are  covered  by  a  director's and
officer's 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
 
    The following exhibits are filed herewith:
<TABLE>
<CAPTION>
 EXHIBIT
 NUMBER                                                DESCRIPTION
- ---------  ---------------------------------------------------------------------------------------------------
<S>        <C>
 
<CAPTION>
 4.1       Certificate of Incorporation of the Registrant (incorporated by reference to the Registrant's
            Transition Report of Form 10-KSB for the transition period ended December 31, 1995 (the
            "Transition Report")).
<S>        <C>
 4.2       Specimen Certificate for Common Stock (incorporated by reference to the Transition Report).
 4.3       Bylaws of the Registrant (incorporated by reference to Transition Report).
 4.4       Form of Securities Purchase Agreement by and between AccuMed International, Inc. and certain
            non-U.S. persons.
 4.5       May 31, 1996 Securities Purchase Agreement by and among AccuMed International, Inc. and Kingdon
            Associates, L.P., Kingdon Partners, L.P. and M. Kingdon Offshore N.V.
 5.1       Opinion of Graham & James LLP, counsel to the Registrant, regarding the legality of the securities
            offered hereby.
23.1       Consent of Graham & James LLP (contained in Exhibit 5.1 filed herewith.)
</TABLE>
 
                                      II-1
<PAGE>
<TABLE>
<CAPTION>
 EXHIBIT
 NUMBER                                                DESCRIPTION
- ---------  ---------------------------------------------------------------------------------------------------
<S>        <C>
23.2       Consent of Coopers & Lybrand LLP.
23.3       Consent of Coopers & Lybrand (UK).
23.4       Consent of KPMG Peat Marwick LLP.
24.1       Powers of Attorney (contained in the signature page to this Registration Statement, page II-5).
</TABLE>
 
ITEM 17.  UNDERTAKINGS
 
    The undersigned registrant hereby undertakes:
 
        (1) To file, during any period in which offers or sales are being  made,
    a  post-effective amendment  to this  registration statement  to include any
    additional or  changed material  information  with respect  to the  plan  of
    distribution.
 
        (2)  That,  for  the  purpose of  determining  any  liability  under the
    Securities Act of 1933, 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.
 
        (3) To remove from registration  by means of a post-effective  amendment
    any   of  the  securities  being  registered  which  remain  unsold  at  the
    termination of the offering.
 
    Insofar as indemnification for liabilities arising under the Securities  Act
of  1933 (the  "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 Act
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-2
<PAGE>
                                   SIGNATURES
 
    Pursuant  to the requirements of the  Securities Act of 1933, the Registrant
has duly caused  this Registration Statement  on Form  S-3 to be  signed on  its
behalf  by the undersigned,  thereunto duly authorized, in  the City of Chicago,
State of Illinois on             , 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 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.
 
    Pursuant   to  the  requirements  of  the   Securities  Act  of  1933,  this
Registration Statement on Form S-3 has  been signed by the following persons  in
the capacities and on the dates indicated.
 
   
<TABLE>
<CAPTION>
                  SIGNATURE                              TITLE                  DATE
- ---------------------------------------------  -------------------------  ----------------
<C>                                            <S>                        <C>
                                               Chairman of the Board and
            /s/ PETER P. GOMBRICH              Chief Executive Officer
 -------------------------------------------   (Principal Executive         July 3, 1996
             (Peter P. Gombrich)               Officer)
 
                                               Vice President, Finance
             /s/ MARK L. SANTOR                and Chief Financial
 -------------------------------------------   Officer (Principal           July 3, 1996
              (Mark L. Santor)                 Financial and Accounting
                                               Officer)
 
             /s/ JOHN H. ABELES
 -------------------------------------------   Director                     July 3, 1996
              (John H. Abeles)
 
            /s/ DONALD M. EARHART
 -------------------------------------------   Director                     July 3, 1996
             (Donald M. Earhart)
 
 -------------------------------------------   Director                        , 1996
             (Jack H. Halperin)
</TABLE>
    
 
                                      II-3
<PAGE>
   
<TABLE>
<CAPTION>
                  SIGNATURE                              TITLE                  DATE
- ---------------------------------------------  -------------------------  ----------------
<C>                                            <S>                        <C>
 -------------------------------------------   Director                        , 1996
             (Paul F. Lavallee)
 
 -------------------------------------------   Director                        , 1996
           (Joseph W. Plandowski)
 
           /s/ LEONARD M. SCHILLER
 -------------------------------------------   Director                     July 3, 1996
            (Leonard M. Schiller)
</TABLE>
    
 
                                      II-4
<PAGE>
                               INDEX TO EXHIBITS
<TABLE>
<CAPTION>
 EXHIBIT
 NUMBER                                          DESCRIPTION OF EXHIBIT
- ---------  ---------------------------------------------------------------------------------------------------
<S>        <C>
 
<CAPTION>
 4.1       Certificate of Incorporation of the Registrant (incorporated by reference to the Registrant's
           Transition Report of Form 10-KSB for the transition period ended December 31, 1995 (the "Transition
           Report")).
<S>        <C>
 4.2       Specimen Certificate for Common Stock (incorporated by reference to the Transition Report).
 4.3       Bylaws of the Registrant (incorporated by reference to Transition Report).
 4.4       Form of Securities Purchase Agreement by and between AccuMed International, Inc. and Subscriber.
 4.5       May 31, 1996 Securities Purchase Agreement by and among AccuMed International, Inc. and Kingdon
           Associates, L.P., Kingdon Partners, L.P. and M. Kingdon Offshore N.V.
 5.1       Opinion of Graham & James LLP, counsel to the Registrant, regarding the legality of the securities
           offered hereby.
23.1       Consent of Graham & James LLP (contained in Exhibit 5.1 filed herewith.)
23.2       Consent of Coopers & Lybrand LLP.
23.3       Consent of Coopers & Lybrand (UK).
23.4       Consent of KPMG Peat Marwick LLP.
24.1       Powers of Attorney (contained in the signature page to this Registration Statement, page II-5).
</TABLE>
 
                                      II-5

<PAGE>
                                                                     EXHIBIT 4.4
 
    Securities  Purchase Agreement dated  as of _________,  19___ by and between
AccuMed International, Inc.  (the "Company"), a  Delaware corporation having  an
office  at 920  N. Franklin  Street, Chicago,  IL 60610  and the  subscriber who
executes this agreement at the end hereof ("Subscriber").
 
                              W I T N E S S E T H
 
    WHEREAS, Subscriber wishes to purchase shares of the Company's Common  Stock
on the terms and conditions hereinafter stated;
 
    WHEREAS,  the  Company wishes  to  issue such  securities  on the  terms and
conditions hereinafter stated;
 
    NOW THEREFORE, the Company and Subscriber agree as follows:
 
    1.  Subscriber hereby  agrees to purchase ______  shares of Common Stock  of
the  Company ("Shares") being paid in full on the date hereof. The Company shall
cause certificates for the Shares to  be delivered to Subscriber promptly  after
the date hereof.
 
    2.     Subscriber  hereby  represents  and  warrants  to  the  Company,  and
acknowledges and intends that the Company will rely thereon, as follows:
 
        (a) Subscriber  acknowledges  that an  aggregate  of 125,000  shares  of
    Common  Stock are being offered by the Company at a price of $6.00 per share
    through American Equities  Overseas, Inc. acting  through American  Equities
    Overseas  (U.K.) Ltd.  and that the  Company is seeking  to raise additional
    capital  of  approximately  $1,000,000  through  a  contemporaneous  private
    placement;
 
        (b) Subscriber has received and reviewed such information concerning the
    Company as Subscriber has requested;
 
        (c)  Subscriber understands that he is  acquiring the Shares for his own
    account for investment purposes only and not with a view to any distribution
    of such Shares and no other person has a direct or indirect interest in such
    Shares and Warrants;
 
        (d) Subscriber acknowledges and agrees that the Company has informed him
    that the Shares are not registered under any securities laws, and the Shares
    are restricted securities under the Securities Act of 1933, as amended  (the
    "Act");
 
        (e)  Subscriber  has  such  knowledge and  experience  in  financial and
    business matters that Subscriber is capable of
<PAGE>
                                   SIGNATURE PAGE
 
    Date:
 
                                          --------------------------------------
                                          Name of Subscriber
 
                                          --------------------------------------
                                          Signature of Subscriber or
                                          Authorized Representative of
                                          Subscriber
 
Type of Organization:  ---------------------------------------
 
Date of Formation:  ------------------------------------------
 
Jurisdiction of Formation:  ----------------------------------
 
Type of Business:  -------------------------------------------
 
Address of Principal Office:  -------------------------------
 
                           -----------------------------------
 
Business Telephone:  -----------------------------------------
 
Accepted:
 
ACCUMED INTERNATIONAL, INC.
 
By:
- -------------------------------------------
 
Title:  ---------------------------------  Date:  ------------------------

<PAGE>
                                                                     EXHIBIT 4.5
 
                         SECURITIES PURCHASE AGREEMENT
 
    SECURITIES  PURCHASE AGREEMENT (this "AGREEMENT"), dated  as of May 31, 1996
by  and  among  ACCUMED  INTERNATIONAL,  INC.,  a  Delaware  corporation,   with
headquarters  located at  920 N. Franklin  Street, Chicago,  Illinois 60610 (the
"COMPANY"), and each of the purchasers  set forth on the signature pages  hereto
(the "BUYERS").
 
    WHEREAS:
 
    A.   The Company and the Buyers  are executing and delivering this Agreement
in reliance upon the exemption from securities registration afforded by  Section
4(2)  of the Securities Act  of 1933, as amended (the  "1933 ACT"), and Rule 506
under Regulation  D  ("REGULATION  D")  as  promulgated  by  the  United  States
Securities and Exchange Commission (the "SEC") under the 1933 Act;
 
    B.  The Buyers desire to purchase and the Company desires to issue and sell,
upon  the terms and conditions stated in this Agreement, an aggregate of 130,000
shares of Common Stock, par  value $.01 per share,  of the Company (the  "Common
Stock") for an aggregate purchase price of $780,000; and
 
    C.   Contemporaneous with the execution  and delivery of this Agreement, the
parties hereto are executing and delivering a Registration Rights Agreement,  in
the  form attached hereto as EXHIBIT  "A" (the "REGISTRATION RIGHTS AGREEMENT"),
pursuant to which the Company has agreed to provide certain registration  rights
under  the 1933  Act and the  rules and regulations  promulgated thereunder, and
applicable state securities laws;
 
    NOW THEREFORE, the Company and the Buyers hereby agree as follows:
 
1.  PURCHASE AND SALE OF COMMON STOCK.
 
    a.  PURCHASE  OF COMMON STOCK.   On  the Closing Date  (as defined  herein),
subject  to the satisfaction (or waiver) of  the conditions thereto set forth in
Section 6 and Section 7  below, the Company shall issue  and sell to each  Buyer
and  each Buyer shall purchase  from the Company the  number of shares of Common
Stock set forth immediately below such Buyer's name on the signature page hereto
(such shares being hereinafter  collectively referred to as  the "Shares") at  a
price per Share equal to $6.00.
 
    b.   FORM OF  PAYMENT.  On  the Closing Date,  (i) each Buyer  shall pay the
purchase price for the Shares to be issued and sold to such Buyer (the "PURCHASE
PRICE") by  wire transfer  to  the Company,  in  accordance with  the  Company's
written  wiring instructions, against delivery of a duly executed certificate(s)
representing such  number of  Shares and  (ii) the  Company shall  deliver  such
certificate(s)  against  delivery of  such  Purchase Price.  The  Purchase Price
payable by each Buyer is  set forth immediately below  such Buyer's name of  the
signature page hereto.
 
    c.  CLOSING DATE.  Subject to the satisfaction (or waiver) of the conditions
thereto  set forth in  Section 6 and Section  7 below, the date  and time of the
issuance and sale of the Shares pursuant to this Agreement (the "CLOSING  DATE")
shall  be 12:00 noon Eastern Standard Time on May 31, 1996 (subject to a two (2)
business day grace  period at either  party's option), or,  such other  mutually
agreed  upon time. The closing shall occur on the Closing Date at the offices of
Klehr, Harrison, Harvey, Branzburg &  Ellers, 1401 Walnut Street,  Philadelphia,
Pennsylvania 19102.
 
2.  BUYERS' REPRESENTATIONS AND WARRANTIES
 
    Each  Buyer,  severally  and not  jointly,  represents and  warrants  to the
Company solely with respect to such Buyer that:
 
    a.  INVESTMENT  PURPOSE.  The  Buyer is  purchasing the Shares  for its  own
account,  not as nominee  or agent, for  investment only and  not with a present
view towards the public sale or  distribution thereof, except pursuant to  sales
registered under the 1933 Act.
 
    b.   ACCREDITED INVESTOR STATUS.   The Buyer is  an "accredited investor" as
that term is defined in Rule 501(a) of Regulation D.
<PAGE>
    c.  RELIANCE ON EXEMPTIONS.  The Buyer understands that the Shares are being
offered  and  sold  to  it  in  reliance  upon  specific  exemptions  from   the
registration requirements of United States federal and state securities laws and
that  the Company  is relying upon  the truth  and accuracy of,  and the Buyer's
compliance with,  the representations,  warranties, agreements,  acknowledgments
and  understandings of  the Buyer  set forth  herein in  order to  determine the
availability of such exemptions and the eligibility of the Buyer to acquire  the
Shares.
 
    d.   INFORMATION.  The  Buyer and its advisors,  if any, have been furnished
with all materials  relating to  the business,  finances and  operations of  the
Company  and materials relating to  the offer and sale  of the Shares which have
been requested by the Buyer or its advisors. The Buyer and its advisors, if any,
have been afforded  the opportunity  to ask questions  of the  Company and  have
received  what  the  Buyer  believes  to be  satisfactory  answers  to  any such
inquiries. Neither  such inquiries  nor any  other due  diligence  investigation
conducted by Buyer or any of its advisors or representatives shall modify, amend
or  affect Buyer's right to rely on the Company's representations and warranties
contained in Section 3 below. The  Buyer understands that its investment in  the
Shares involves a high degree of risk.
 
    e.    GOVERNMENTAL REVIEW.    The Buyer  understands  that no  United States
federal or  state agency  or any  other government  or governmental  agency  has
passed upon or made any recommendation or endorsement of the Shares.
 
    f.   TRANSFER OR RESALE.  The  Buyer understands that (i) except as provided
in the Registration Rights Agreement, the Shares have not been and are not being
registered under the  1933 Act  or any  state securities  laws, and  may not  be
transferred  unless  (a) subsequently  registered thereunder,  or (b)  the Buyer
shall have delivered to  the Company an opinion  of counsel, in form,  substance
and scope reasonably acceptable to the Company, to the effect that the Shares to
be  sold or transferred may be sold or transferred pursuant to an exemption from
such registration or (c)  sold pursuant to Rule  144 promulgated under the  1933
Act (or a successor rule); (ii) any sale of such Shares made in reliance on Rule
144  may be made only in accordance with  the terms of said Rule and further, if
said Rule is not  applicable, any resale of  such Shares under circumstances  in
which  the seller (or the person through whom the sale is made) may be deemed to
be an  underwriter  (as that  term  is defined  in  the 1933  Act)  may  require
compliance  with  some other  exemption  under the  1933  Act or  the  rules and
regulations of the SEC thereunder; and  (iii) neither the Company nor any  other
person is under any obligation to register such Shares under the 1933 Act or any
state  securities  laws  or to  comply  with  the terms  and  conditions  of any
exemption thereunder  (in each  case, other  than pursuant  to the  Registration
Rights Agreement).
 
    g.   LEGENDS.  The Buyer understands that the Shares, may bear a restrictive
legend in substantially  the following form  (and a stop-transfer  order may  be
placed against transfer of the certificates for such Shares):
 
    "The  securities represented  by this  certificate have  not been registered
    under the  Securities Act  of 1933,  as amended.  The securities  have  been
    acquired  for investment and may not be sold, transferred or assigned in the
    absence of an effective registration statement for the securities under said
    Act, or  an opinion  of counsel,  in form,  substance and  scope  reasonably
    acceptable  to the Company, that registration is not required under said Act
    or unless sold pursuant to Rule 144 under said Act."
 
    The legend set forth above  shall be removed and  the Company shall issue  a
certificate  without such legend  to the holder  of any Shares  upon which it is
stamped, if, unless otherwise required by state securities laws, (a) the sale of
such Shares is registered under  the 1933 Act, or  (b) such holder provides  the
Company  with an  opinion of  counsel, in  form, substance  and scope reasonably
acceptable to the Company, to the effect that a public sale or transfer of  such
Shares  may be made without  registration under the 1933  Act or (c) such holder
provides the Company  with reasonable assurances  that such Shares  can be  sold
pursuant  to Rule 144 under  the 1933 Act (or  a successor rule thereto) without
any
 
                                       2
<PAGE>
restriction as to the number of Shares acquired as of a particular date that can
then be immediately sold. The Buyer  agrees to sell all Shares, including  those
represented  by  a certificate(s)  from which  the legend  has been  removed, in
compliance with applicable securities law.
 
    h.  AUTHORIZATION; ENFORCEMENT.  This Agreement and the Registration  Rights
Agreement  have  been duly  and validly  authorized,  executed and  delivered on
behalf of  the  Buyer  and  are  valid  and  binding  agreements  of  the  Buyer
enforceable in accordance with their terms.
 
    i.    RESIDENCY.   The Buyer  is a  resident of  the jurisdiction  set forth
immediately below such Buyer's name on the signature page hereto.
 
3.  REPRESENTATIONS AND WARRANTIES OF THE COMPANY.
 
    The Company represents and warrants to each Buyer that:
 
    a.   ORGANIZATION  AND  QUALIFICATION;  SUBSIDIARIES.    The  Company  is  a
corporation  duly organized and existing in good  standing under the laws of the
State of Delaware, and has the  requisite corporate power to own its  properties
and  to  carry on  its  business as  now being  conducted.  The Company  is duly
qualified as a foreign  corporation to do  business and is  in good standing  in
every  jurisdiction in which  the nature of  the business conducted  by it makes
such qualification necessary and  where the failure so  to qualify would have  a
Material  Adverse Effect. "MATERIAL  ADVERSE EFFECT" means  any material adverse
effect on the operations,  properties, financial condition  or prospects of  the
Company  or  on  the transactions  contemplated  hereby. None  of  the Company's
subsidiaries are engaged in any activities which are material to the  operations
of the Company and its subsidiaries taken as a whole.
 
    b.  AUTHORIZATION; ENFORCEMENT.  (i) The Company has the requisite corporate
power   and  authority  to  enter  into  and  perform  this  Agreement  and  the
Registration Rights Agreement  and to issue  the Shares in  accordance with  the
terms  hereof,  (ii)  the  execution  and delivery  of  this  Agreement  and the
Registration Rights Agreement by the Company  and the consummation by it of  the
transactions  contemplated hereby and thereby  (including without limitation the
issuance of the  Shares) have  been duly authorized  by the  Company's Board  of
Directors  and no further consent or authorization  of the Company, its Board or
Directors, or its stockholders is required,  (iii) this Agreement has been  duly
executed  and delivered by the Company, and (iv) this Agreement constitutes, and
upon execution and delivery by the Company of the Registration Rights Agreement,
such agreement will constitute,  a valid and binding  obligation of the  Company
enforceable against the Company in accordance with its terms.
 
    c.   CAPITALIZATION.  As of the date hereof, the authorized capital stock of
the Company  consists  of  (i)  30,000,000  shares  of  Common  Stock  of  which
18,913,234  shares are issued and outstanding, 2,057,418 shares are reserved for
issuance pursuant to  the Company's stock  option plans and  stock options,  and
5,972,260  shares are reserved  for issuance pursuant  to securities exercisable
for, or convertible  into or exchangeable  for any shares  of Common Stock;  and
(ii)  5,000,000  shares  of  preferred  stock,  none  of  which  are  issued and
outstanding. All of such outstanding shares  of capital stock have been  validly
issued,  fully paid and nonassessable. Except  as disclosed in SCHEDULE 3(C), no
shares of capital stock of the Company  are subject to preemptive rights or  any
other  similar rights of  the stockholders of  the Company or,  to the Company's
knowledge, any liens or encumbrances. Except  as disclosed in SCHEDULE 3(C),  as
of  the date of this Agreement, (i)  there are no outstanding options, warrants,
scrip, rights to subscribe to, calls or commitments of any character  whatsoever
relating  to, or securities  or rights convertible into  or exchangeable for any
shares of  capital  stock  of  the  Company  or  any  of  its  subsidiaries,  or
arrangements  by which the Company  or any of its  subsidiaries is or may become
bound to issue additional shares of capital  stock of the Company or any of  its
subsidiaries,  and (ii) there are no  agreements or arrangements under which the
Company or any of its subsidiaries is  obligated to register the sale of any  of
its  or  their securities  under the  1933 Act  (except the  Registration Rights
Agreement). The Company has  furnished to the Buyer  true and correct copies  of
the
 
                                       3
<PAGE>
Company's  Amended and Restated Certificate of Incorporation as in effect on the
date hereof ("CERTIFICATE OF  INCORPORATION") and the  Company's By-laws, as  in
effect  on the date hereof (the "BY-LAWS").  The Company shall provide the Buyer
with a  written update  of this  representation signed  by the  Company's  Chief
Executive  or Chief Financial Officer on behalf of the Company as of the Closing
Date.
 
    d.  ISSUANCE OF SHARES.  The  Shares are duly authorized and, upon  issuance
in  accordance with the terms  of this Agreement shall  be validly issued, fully
paid and non-assessable, and free from all taxes, liens and charges with respect
to the issue  thereof and shall  not be  subject to preemptive  rights or  other
similar rights of stockholders of the Company.
 
    e.  NO CONFLICTS.  The execution, delivery and performance of this Agreement
and the Registration Rights Agreement by the Company and the consummation by the
Company  of the transactions contemplated  hereby and thereby (including without
limitation, the issuance of the Shares), will  not (i) result in a violation  of
the Certificate of Incorporation or By-laws or (ii) conflict with, or constitute
a default (or an event which with notice or lapse of time or both would become a
default)  under,  or  give  to  others  any  rights  of  termination, amendment,
acceleration or cancellation of, any agreement, indenture or instrument to which
the Company or any of its subsidiaries is  a party, or result in a violation  of
any  law, rule,  regulation, order,  judgment or  decree (including  federal and
state securities laws and regulations) applicable  to the Company or any of  its
subsidiaries  or by  which any property  or asset of  the Company or  any of its
subsidiaries  is  bound  or  affected  (except  for  such  conflicts,  defaults,
terminations,  amendments, accelerations, cancellations  and violations as would
not, individually or  in the  aggregate, have  a Material  Adverse Effect).  The
Company  is not in violation of its  Certificate of Incorporation or By-laws and
is not in default (and no event has occurred which with notice or lapse of  time
of both would put the Company in default) under, or give to others any rights of
termination,   amendment,  acceleration  or   cancellation  of,  any  agreement,
indenture or instrument to  which the Company  or any of  its subsidiaries is  a
party,  except  for  possible defaults  as  would  not, individually  or  in the
aggregate, have a Material Adverse Effect. The businesses of the Company and its
subsidiaries are not being conducted,  and shall not be  conducted so long as  a
Buyer  owns any of the Shares, in  violation of any law, ordinance or regulation
of any governmental entity, except  for possible violations which either  singly
or  in  the  aggregate  do  not  have  a  Material  Adverse  Effect.  Except  as
specifically contemplated by this Agreement and  as required under the 1933  Act
and  any applicable state securities laws, the Company is not required to obtain
any consent, authorization or order of, or make any filing or registration with,
any court or governmental agency or any regulatory or self regulatory agency  in
order  for it to execute,  deliver or perform any  of its obligations under this
Agreement and the  Registration Rights  Agreement in accordance  with the  terms
hereof.
 
    f.    SEC DOCUMENTS,  FINANCIAL STATEMENTS.   Since  December 31,  1994, the
Company has filed all reports, schedules, forms, statements and other  documents
required  to be filed by it with  the SEC pursuant to the reporting requirements
of the Exchange Act of 1934, as  amended (the "1934 ACT") (all of the  foregoing
filed  prior to the date hereof and  all exhibits included therein and financial
statements  and   schedules  thereto   and  documents   (other  than   exhibits)
incorporated  by reference therein, being hereinafter  referred to herein as the
"SEC DOCUMENTS"). The  Company has  delivered to  each Buyer  true and  complete
copies   of  the  SEC  Documents,  except   for  such  exhibits,  schedules  and
incorporated documents. As of their respective dates, the SEC Documents complied
in all material respects with the requirements of the 1934 Act and the rules and
regulations of the SEC promulgated  thereunder applicable to the SEC  Documents,
and  none  of the  SEC Documents,  at the  time  they were  filed with  the SEC,
contained any untrue statement of a material fact or omitted to state a material
fact required to be stated therein or necessary in order to make the  statements
therein,  in  light  of  the  circumstances  under  which  they  were  made, not
misleading. As  of  their respective  dates,  the financial  statements  of  the
Company  included  in the  SEC Documents  complied  as to  form in  all material
respects with applicable  accounting requirements  and the  published rules  and
regulations of the SEC with respect thereto. Such financial statements have been
prepared   in   accordance  with   generally  accepted   accounting  principles,
consistently applied,  during  the  periods  involved  (except  (i)  as  may  be
otherwise
 
                                       4
<PAGE>
indicated in such financial statements or the notes thereto, or (ii) in the case
of unaudited interim statements, to the extent they may not include footnotes or
may  be  condensed or  summary statements)  and fairly  present in  all material
respects the consolidated financial position of the Company and its consolidated
subsidiaries as  of the  dates thereof  and the  consolidated results  of  their
operations  and cash flows for  the periods then ended  (subject, in the case of
unaudited statements, to normal year-end audit adjustments). Except as set forth
in the financial statements  of the Company included  in the SEC documents,  the
Company  has no liabilities, contingent or otherwise, other than (i) liabilities
incurred in the ordinary course of business subsequent to December 31, 1995  and
(ii) obligations under contracts and commitments incurred in the ordinary course
of  business and not required under  generally accepted accounting principles to
be reflected  in  such  financial  statements, which,  individually  or  in  the
aggregate,  are not material to the  financial condition or operating results of
the Company. The Company  has not provided to  any Buyer or its  representatives
any  information which, according to applicable  law, rule or regulation, should
have been disclosed publicly by the Company but which has not been so disclosed.
 
    g.  ABSENCE OF CERTAIN CHANGES.   Since December 31, 1995 there has been  no
material  adverse change  and no material  adverse development  in the business,
properties, operations, financial condition, results of operations or  prospects
of the Company.
 
    h.  ABSENCE OF LITIGATION.  There is no action, suit, proceeding, inquiry or
investigation   before  or  by  any  court,  public  board,  government  agency,
self-regulatory organization or body pending or, to the knowledge of the Company
or any of  its subsidiaries, threatened  against or affecting  the Company,  the
Common Stock or any of the Company's subsidiaries.
 
    i.   DISCLOSURE.  All information relating  to or concerning the Company set
forth in this  Agreement and  provided to the  Buyers pursuant  to Section  2(d)
hereof  and otherwise in connection with the transactions contemplated hereby is
true and correct in  all material respects  and the Company  has not omitted  to
state any material fact necessary in order to make the statements made herein or
therein,  in  light  of  the  circumstances  under  which  they  were  made, not
misleading. No event  or circumstance  has occurred  or exists  with respect  to
Company  or its subsidiaries or  the respective business, properties, prospects,
operations or  financial  conditions,  which,  under  applicable  law,  rule  or
regulation,  requires public disclosure or announcement by the Company but which
has not been so publicly announced or disclosed.
 
    j.  ACKNOWLEDGMENT REGARDING  BUYERS' PURCHASE OF THE  SHARES.  The  Company
acknowledges  and agrees that  the Buyers are  acting solely in  the capacity of
arm's length  purchasers with  respect to  this Agreement  and the  transactions
contemplated hereby. The Company further acknowledges that no Buyer is acting as
a  financial advisor or  fiduciary of the  Company (or in  any similar capacity)
with respect to this Agreement and the transactions contemplated hereby and  any
advice  given by any Buyer or any  of their respective representatives or agents
in connection with this  Agreement and the  transactions contemplated hereby  is
merely  incidental to  the Buyers' purchase  of the Shares.  The Company further
represents to  each  Buyer  that  the Company's  decision  to  enter  into  this
Agreement has been based solely on the independent evaluation of the Company and
its representatives.
 
    k.  NO INTEGRATED OFFERING.  Neither the Company, nor any of its affiliates,
nor  any person acting on  its or their behalf,  has directly or indirectly made
any offers or sales in any security or solicited any offers to buy any  security
under  circumstances  that would  require registration  of  the issuance  of the
Shares to the Buyers under the 1933 Act.
 
    l.  NO BROKERS.   The Company has taken no  action which would give rise  to
any  claim by  any person  for brokerage  commissions, finder's  fees or similar
payments  by  any  Buyer  relating   to  this  Agreement  or  the   transactions
contemplated  hereby, except  for dealings  with Commonwealth  Associates, whose
commissions and fees will be paid for by the Company.
 
                                       5
<PAGE>
4.  COVENANTS.
 
    a.   BEST EFFORTS.   The  parties shall  use their  best efforts  timely  to
satisfy each of the conditions described in Section 6 and 7 of this Agreement.
 
    b.  FORM D; BLUE SKY LAWS.  The Company agrees to file a Form D with respect
to  the Shares as required  under Regulation D and to  provide a copy thereof to
each Buyer  promptly after  such filing.  The Company  shall, on  or before  the
Closing  Date, take  such action  as the  Company shall  reasonably determine is
necessary to qualify  the Shares for,  or obtain exemption  for the Shares  for,
sale  to the Buyers at  the closing pursuant to  this Agreement under applicable
securities or "blue  sky" laws of  the states  of the United  States, and  shall
provide  evidence of any such action  so taken to each Buyer  on or prior to the
Closing Date.
 
    c.  REPORTING STATUS.   So long  as any Buyer beneficially  owns any of  the
Shares,  the Company shall timely file all reports required to be filed with the
SEC pursuant to the 1934 Act, and the Company shall not terminate its status  as
an  issuer required to file reports  under the 1934 Act even  if the 1934 Act or
the rules and regulations thereunder would permit such termination.
 
    d.  USE OF PROCEEDS.   The Company shall use  the proceeds from the sale  of
the  Shares for  the Company's  internal working  capital purposes.  The Company
shall not,  directly  or  indirectly, use  such  proceeds  for any  loan  to  or
investment in any other corporation, partnership, enterprise or other person.
 
    e.   ADDITIONAL EQUITY CAPITAL; RIGHT OF  FIRST REFUSAL.  The Company agrees
that during the  period beginning on  the date  hereof and ending  on the  first
anniversary  of  the  Closing  Date  the Company  will  not  conduct  any equity
offering, including without limitation a debt offering with an equity  component
("FUTURE OFFERING") unless it shall have first delivered to each Buyer, at least
ten  (10) business days  prior to the  closing of such  Future Offering, written
notice  describing  the  proposed  Future  Offering,  including  the  terms  and
conditions  thereof, and providing each Buyer an option during such ten (10) day
period to purchase its Pro Rata Percentage (as defined below), as of the date of
such written notice of  the securities being offered  in the Future Offering  on
the  same terms as contemplated by such Future Offering (the limitation referred
to in this  sentence is referred  to as the  "CAPITAL RAISING LIMITATION").  For
purposes of this Section 4(e), "PRO RATA PERCENTAGE" at any time with respect to
any  Buyer  shall mean  the percentage  obtained by  dividing (x)  the aggregate
number of Shares purchased by such Buyer hereunder, by (y) 170,000. The  Capital
Raising  Limitation shall not  apply to any  transaction involving the Company's
commercial banking arrangements or issuances of securities in connection with  a
merger,  consolidation or  sale of assets,  or in connection  with any 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 or exercise of options by employees,
consultants or directors. The Capital Raising Limitation also shall not apply to
(i) the issuance of  securities pursuant to an  underwritten public offering  or
upon  exercise  or  conversion  of  the  Company's  options,  warrants  or other
convertible securities outstanding  as of  the date  hereof, (ii)  the grant  of
additional  options or warrants, or the issuance of additional securities, under
any Company  stock  option or  restricted  stock plan  for  the benefit  of  the
Company's  employees,  directors or  consultants, (iii)  the  issuance of  up to
750,000 shares  of  Common Stock  through  American Equity  Overseas  U.K.  Ltd.
pursuant  to currently existing contractual arrangements or (iv) the issuance of
up to  $8  million of  Common  Stock through  Tucker  Anthony/Vector  Securities
pursuant to currently existing contractual arrangements.
 
    f.  EXPENSES.  Except as otherwise provided in Section 5 of the Registration
Rights  Agreement, each party hereto shall be responsible for the payment of its
own  expenses  incurred  in   connection  with  the  negotiation,   preparation,
execution,  delivery and performance of this  Agreement and the other agreements
to be executed in connection herewith;  except that the Company shall  reimburse
the Buyers for reasonable legal fees incurred in connection with the transaction
contemplated hereby, up to a maximum of $10,000.
 
                                       6
<PAGE>
    g.  FINANCIAL INFORMATION.  The Company agrees to send the following reports
to  each Buyer until such Buyer transfers,  assigns, or sells all of the Shares:
(i) within ten (10)  days after the filing  with the SEC, a  copy of its  Annual
Report  on Form 10-K, its Quarterly Reports on Form 10-Q and any Current Reports
on Form 8-K;  and (ii) within  one (1) day  after release, copies  of all  press
releases issued by the Company or any of its subsidiaries.
 
    h.   LISTING.  The  Company shall promptly secure  the listing of the Shares
upon each national securities  exchange or automated  quotation system, if  any,
upon which shares of Common Stock are then listed (subject to official notice of
issuance)  and shall maintain, so long as any other shares of Common Stock shall
be so listed, such listing of all Shares.
 
5.  TRANSFER AGENT INSTRUCTIONS.
 
    Prior to registration  of the Shares  under the 1933  Act, all  certificates
representing  the Shares shall bear the  restrictive legend specified in Section
2(g) of this Agreement. The Company warrants that no instruction other than such
instructions referred to in  this Section 5, and  stop transfer instructions  to
give effect to Section 2(f) hereof prior to registration of the Shares under the
1933 Act, will be given by the Company to its transfer agent and that the Shares
shall  otherwise be freely transferable on the  books and records of the Company
as and to  the extent  provided in this  Agreement and  the Registration  Rights
Agreement.  Nothing  in  this  Section  shall  affect  in  any  way  the Buyers'
obligations and agreement set  forth in Section 2(g)  hereof to comply with  all
applicable  securities laws upon resale  of the Shares. If  a Buyer provides the
Company with an opinion  of counsel, reasonably satisfactory  to the Company  in
form, substance and scope, that registration of a resale by such Buyer of any of
the  Shares is  not required under  the 1933  Act, the Company  shall permit the
transfer and  promptly  instruct  its  transfer  agent  to  issue  one  or  more
certificates in such name and in such denominations as specified by such Buyer.
 
6.  CONDITIONS TO THE COMPANY'S OBLIGATION TO SELL.
 
    The obligation of the Company hereunder to issue and sell the Shares to each
of  the Buyers at the  closing is subject to the  satisfaction, at or before the
Closing Date, of each of the  following conditions thereto, provided that  these
conditions  are for the Company's sole benefit  and may be waived by the Company
at any time in its sole discretion:
 
    (i) The  Buyers shall  have  executed this  Agreement and  the  Registration
Rights Agreement, and delivered the same to the Company.
 
    (ii)  The Buyers shall have delivered  the Purchase Price in accordance with
Section 1(b) above.
 
   (iii) The representations  and warranties  of the  Buyers shall  be true  and
correct  in all material respects as of the date when made and as of the Closing
Date as though made at that time (except for representations and warranties that
speak as of a specific date), and the Buyers shall have performed, satisfied and
complied in all material respects with the covenants, agreements and  conditions
required  by this Agreement to  be performed, satisfied or  complied with by the
Buyers at or prior to the Closing Date.
 
   (iv) NO INJUNCTION.  No statute, rule,  regulation, executive order,  decree,
ruling  or injunction shall have been  enacted, entered, promulgated or endorsed
by any  court  or  governmental  authority  of  competent  jurisdiction  or  any
self-regulatory  organization  having  authority over  the  matters contemplated
hereby which prohibits the consummation of any of the transactions  contemplated
by this Agreement.
 
7.  CONDITIONS TO EACH BUYER'S OBLIGATION TO PURCHASE.
 
    The obligation of each Buyer hereunder to purchase the Shares at the closing
is  subject to the satisfaction,  at or before the Closing  Date, of each of the
following conditions, provided that these  conditions are for such Buyer's  sole
benefit and may be waived by such Buyer at any time in its sole discretion:
 
                                       7
<PAGE>
    (i)  The Company  shall have  executed this  Agreement and  the Registration
Rights Agreement, and delivered the same to the Buyers.
 
    (ii) The Company shall  have delivered duly  executed certificates (in  such
denominations  as such  Buyer shall  request) representing  the Shares  being so
purchased to such Buyer in accordance with Section 1(b) above.
 
   (iii) The Common Stock shall be authorized for quotation on the NASDAQ  Small
Cap  System ("NASDAQ Small Cap"), and trading  in the Common Stock (or on NASDAQ
Small Cap generally) shall not  have been suspended by  the SEC or NASDAQ  Small
Cap.
 
   (iv)  The representations  and warranties  of the  Company shall  be true and
correct in all material respects as of the date when made and as of the date  of
the  closing  as  though  made  at that  time  (except  for  representations and
warranties that  speak  as  of a  specific  date)  and the  Company  shall  have
performed,  satisfied and complied in all  material respects with the covenants,
agreements and conditions required by this Agreement to be performed,  satisfied
or  complied with by  the Company at  or prior to  the date of  the closing. The
Buyers shall  have  received a  certificate,  executed by  the  chief  executive
officer  of the Company, dated  as of the date of  the closing, to the foregoing
effect and  as to  such other  matters as  may be  reasonably requested  by  the
Buyers.
 
    (v)  The Buyers  shall have  received an  opinion of  the Company's counsel,
dated  as  of  the  Closing  Date,  in  form,  scope  and  substance  reasonably
satisfactory  to the Buyers  and in substantially  the same form  as EXHIBIT "B"
attached hereto.
 
   (vi) The Buyers shall  have received the  officer's certificate described  in
Section 3(c) above, dated as of the Closing Date.
 
8.  GOVERNING LAW; MISCELLANEOUS.
 
    a.   GOVERNING LAW.  This Agreement  shall be governed by and interpreted in
accordance with  the  laws of  the  State of  New  York without  regard  to  the
principles  of  conflict  of  laws.  The parties  hereto  hereby  submit  to the
exclusive jurisdiction of the United States  Federal Courts located in New  York
County  in the State of New York with  respect to any dispute arising under this
Agreement,  the  agreements   entered  into  in   connection  herewith  or   the
transactions contemplated hereby or thereby.
 
    b.    COUNTERPARTS.    This  Agreement  may  be  executed  in  two  or  more
counterparts, all of which  shall be considered one  and the same agreement  and
shall  become effective  when counterparts  have been  signed by  each party and
delivered to the other party.
 
    c.   HEADINGS.   The  headings  of this  Agreement  are for  convenience  of
reference  and shall  not form  part of, or  affect the  interpretation of, this
Agreement.
 
    d.  SEVERABILITY.  If  any provision of this  Agreement shall be invalid  or
unenforceable in any jurisdiction, such invalidity or unenforceability shall not
affect  the validity or enforceability of the remainder of this Agreement or the
validity or enforceability of this Agreement in any other jurisdiction.
 
    e.   ENTIRE  AGREEMENT; AMENDMENTS;  AUTHORITY  TO  ACT FOR  BUYERS.    This
Agreement and the instruments referenced herein contain the entire understanding
of  the parties  with respect  to the  matters covered  herein and  therein and,
except as specifically set forth herein or therein, neither the Company nor  the
Buyers  make any representation, warranty,  covenant or undertaking with respect
to such matters. No provision of this  Agreement may be waived or amended  other
than  by  an  instrument in  writing  signed by  the  party to  be  charged with
enforcement. Kingdon Capital Management Corp. shall have exclusive authority  to
act  on behalf of  the Buyers with  respect to the  matters contemplated by this
Agreement and any such action shall be binding upon the Buyers.
 
                                       8
<PAGE>
    f.  NOTICES.  Any notices required or permitted to be given under the  terms
of  this Agreement shall be sent by certified or registered mail (return receipt
requested) or delivered  personally or by  courier and shall  be effective  five
days  after being placed in  the mail, if mailed, or  upon receipt or refusal of
receipt, if delivered  personally or  by courier, in  each case  addressed to  a
party. The addresses for such communications shall be:
 
    If to the Company:
 
    International, Inc.
    920 N. Franklin Street
    Chicago, Illinois 60610
    Attention: Peter Gombrick, CEO
 
    With copy to:
 
    Jack Halperin, Esq.
    711 Third Avenue
    Suite 1505
    New York, New York 10017
 
    If to the Buyers:
 
    c/o Kingdon Capital Management Corp.
    152 West 57th Street
    New York, New York 10019
    Attention: Dr. David Present
 
    With copy to:
 
    Klehr, Harrison, Harvey, Branzburg & Ellers
    1401 Walnut Street
    Philadelphia, PA 19102
    Telecopy: (215) 568-6603
    Attention: Wayne D. Bloch, Esq.
 
    Each party shall provide notice to the other party of any change in address.
 
    g.   SUCCESSORS AND ASSIGNS.  This Agreement shall be binding upon and inure
to the benefit  of the  parties and their  successors and  assigns. Neither  the
Company  nor any Buyer shall assign this  Agreement or any rights or obligations
hereunder without the prior written consent of the other.
 
    h.  THIRD PARTY BENEFICIARIES.   This Agreement is intended for the  benefit
of the parties hereto and their respective permitted successors and assigns, and
is  not for  the benefit of,  nor may any  provision hereof be  enforced by, any
other person.
 
    i.  SURVIVAL.   The representations  and warranties of  the Company and  the
agreements  and covenants set forth in Sections 3,  4, 5 and 8 shall survive the
closing notwithstanding  any  due diligence  investigation  conducted by  or  on
behalf  of the Buyers. The Company agrees to indemnify and hold harmless each of
the Buyers for loss or damage arising as a result of or related to any breach or
alleged breach by the Company of any of its representations set forth in Section
3 hereof, including advancement of expenses as they are incurred.
 
    j.  PUBLICITY.  The Company and the Buyers, shall have the right to  approve
before  issuance any press  releases, SEC or  NASD filings, or  any other public
statements with  respect  to  the transactions  contemplated  hereby;  PROVIDED,
HOWEVER,  that the Company shall be entitled,  without the prior approval of the
Buyers, to make any press  release or SEC or NASD  filings with respect to  such
 
                                       9
<PAGE>
transactions  as is  required by  applicable law  and regulations  (although the
Buyers shall  be consulted  by the  Company in  connection with  any such  press
release prior to its release and shall be provided with a copy thereof).
 
    k.   FURTHER ASSURANCES.   Each party shall  do and perform,  or cause to be
done and performed,  all such  further acts and  things, and  shall execute  and
deliver  all such other agreements,  certificates, instruments and documents, as
the other party  may reasonably request  in order  to carry out  the intent  and
accomplish   the  purposes  of  this  Agreement  and  the  consummation  of  the
transactions contemplated hereby.
 
                  [REMAINDER OF PAGE INTENTIONALLY LEFT BLANK]
 
                                       10
<PAGE>
    IN WITNESS WHEREOF, the undersigned Buyers and the Company have caused  this
Agreement to be duly executed as of the date first above written.
 
                                          ACCUMED INTERNATIONAL, INC.
 
                                          By:        /s/ Peter P. Gombrich
 
                                          --------------------------------------
                                          Name:         Peter P. Gombrich
 
                                          --------------------------------------
                                          Its:      Chief Executive Officer
 
                                          --------------------------------------
 
                                          "BUYERS"
 
                                          KINGDON ASSOCIATES, L.P.
 
                                          By:  Kingdon Capital Management Corp.,
                                               its general partner
 
                                          By:
                                          --------------------------------------
                                          Name: Mark Kingdon
                                          Title: President
 
    RESIDENCE: New York
 
    Subscription Amount:
 
    Number of Shares:                                                 26,000
 
    Purchase Price:                                                 $156,000
 
                      [Signatures Continued on Next Page]
 
                                       11
<PAGE>
                     [Signatures Continued From Prior Page]
 
                                          KINGDON PARTNERS, L.P.
 
                                          By:  Kingdon Capital Management Corp.,
                                               its general partner
 
                                          By:          /s/ Mark Kingdon
 
                                          --------------------------------------
                                          Name: Mark Kingdon
                                          Title: President
 
    RESIDENCE: New York
 
    Subscription Amount:
 
    Number of Shares:                                                 26,000
 
    Purchase Price:                                                 $156,000
 
                      [Signatures Continued on Next Page]
 
                                       12
<PAGE>
                     [Signatures Continued From Prior Page]
 
                                          M. KINGDON OFFSHORE NV
 
                                          By:  Kingdon Capital Management Corp.,
                                               its investment advisor
 
                                          By:          /s/ Mark Kingdon
 
                                          --------------------------------------
                                          Name: Mark Kingdon
                                          Title: President
 
    RESIDENCE: Cayman Islands
 
    Subscription Amount:
 
    Number of Shares:                                                 78,000
 
    Purchase Price:                                                 $468,000
 
                                       13
<PAGE>
                                                                   SCHEDULE 3(C)
 
                                       14
<PAGE>
                          ACCUMED INTERNATIONAL, INC.
                           STOCK IN THE CURRENT FLOAT
 
<TABLE>
<S>                                                                      <C>
1/1/96 UNRESTRICTED, S-3 OR TWO-YEAR 144 STOCK.........................   6,620,102
MAY 95 PRIVATE PLACEMENT, S-3 REGISTERED BY 6/30/96....................   3,013,473
AUGUST 1995 PRIVATE PLACEMENT, REGISTERED BY 6/30/96...................   3,000,000
COMMONWEALTH MERGER, REGISTERED BY 6/30/96.............................     444,444
10% OF MERGER STOCK....................................................     487,236
                                                                         ----------
    EXPECTED FLOAT IN JULY 1996........................................  13,565,255
90% PERFORMANCE SHARES FROM MERGER, 3/24/96............................     846,859
90% OF MERGER STOCK TRADABLE IN 18 MONTHS..............................   3,444,165
PERFORMANCE SHARES FROM MERGER, 3/97...................................     940,955
SHARES HELD IN ESCROW..................................................     116,000
                                                                         ----------
TOTAL COMMON SHARES OUTSTANDING, 2/15/96...............................  18,913,234
</TABLE>
 
                                       15
<PAGE>
   
                   ACCUMED STOCK OPTION SUMMARY AS OF 5/25/96
    
 
   
<TABLE>
<CAPTION>
                                                                                                       AVAILABLE
PLAN                         AVAILABLE   EXERCISED  CANCELLED     ISSUED     OUTSTANDING    VESTED     TO ISSUE
- --------------------------  -----------  ---------  ----------  -----------  -----------  -----------  ---------
<S>                         <C>          <C>        <C>         <C>          <C>          <C>          <C>
1990 plan.................      177,324     (7,116)    (80,725)     177,324       89,483       89,483     80,725
1992 plan.................      505,000    (13,118)   (100,740)     505,293      391,435      391,435    100,447
1995 plan.................    1,500,000          0           0    1,495,500    1,495,500      464,288      4,500
Outside Plans.............      N/A                          0       80,000       80,000       80,000          0
                            -----------  ---------  ----------  -----------  -----------  -----------  ---------
    Total.................    2,182,324    (20,234)   (181,465)   2,258,117    2,056,418    1,025,206    185,672
</TABLE>
    
 
                                       16
<PAGE>
                            ACCUMED WARRANTY SUMMARY
 
<TABLE>
<CAPTION>
                      PRIVATE WARRANTS                           PRICE     ISSUE DATE    EXP. DATE    REMAINING
- -------------------------------------------------------------  ---------  ------------  -----------  ------------
<S>                                                            <C>        <C>           <C>          <C>
 Commonwealth & Designees....................................  $    0.25     12/31/94     12/31/99       400,000
  Commonwealth & Designees...................................      0.625       5/9/95       5/9/00       264,840
  Commonwealth & Designees...................................      0.625      8/22/95      8/22/00       300,000
 
  Amer. Secur/Amer. Equities Overseas, Inc...................  $    0.25         8/95       8/1/00        91,000
  G&G Dispensing.............................................  $    5.00      3/29/94     12/31/99       175,000
  Amer. Secur/Amer. Equities Overseas, Inc...................  $    5.00      4/30/90      4/30/00        25,275
  Phil Thomas................................................  $    0.82       8/1/95                    101,914
  Phil Thomas................................................  $    1.64       8/1/95                    101,913
  Phil Thomas................................................  $    2.47       8/1/95                    101,913
  Leonard Schiller...........................................  $    1.13     12/29/95     12/29/00        75,000
  Commonwealth & Designees...................................  $    1.25     12/29/95     12/29/00       650,000
  American Equities..........................................  $    1.25     12/29/95     12/29/00        91,000
  Leslie Hannafey............................................  $   2.125     12/29/95     10/31/97        37,929
  Steve Warner...............................................  $   2.125     12/29/95     10/31/97        37,929
  Keith Rosenblum............................................  $   2.125     12/29/95     10/31/97        12,542
  Broadmark Capital Corporation..............................  $   2.125     12/29/95     10/31/97        15,600
  Robert Priddy..............................................  $   1.250      1/25/96      1/25/01       100,000
  RADCO Investors............................................  $   3.420      3/14/96      3/14/99       220,000
  RADCO Investors............................................  $   3.870      3/14/96      3/14/99       467,500
                                                                                                     ------------
  Total Private Warrants.....................................                                          3,269,355
Public Warrants..............................................  $    5.00                  10/15/97     2,702,905
TOTAL WARRANTS...............................................                                          5,972,260
</TABLE>
 
                                       17

<PAGE>
                                                                     EXHIBIT 5.1
 
July 3, 1996
 
AccuMed International, Inc.
920 N. Franklin Street, Ste. 402
Chicago, IL 60610
 
Ladies and Gentlemen:
 
    You have requested our opinion as counsel for AccuMed International, Inc., a
Delaware   corporation   (formerly  Alamar   Biosciences,  Inc.,   a  California
corporation, the  "Company"),  in connection  with  the registration  under  the
Securities  Act of 1933,  as amended (the  "Securities Act"), and  the Rules and
Regulations promulgated  thereunder,  of an  aggregate  of 255,000  shares  (the
"Shares")  of the Company's Common Stock, par value $0.01 per share (the "Common
Stock"), presently outstanding, pursuant to a Registration Statement on Form S-3
(the "Registration Statement").
 
    This opinion is  rendered pursuant  to Item 601(b)(5)(i)  of Regulation  S-K
promulgated under the Securities Act.
 
    For  purposes of this  opinion, we have  examined the Registration Statement
filed with the Commission on the date hereof, including the prospectus which  is
a  part thereof (the "Prospectus")  and the exhibits thereto.  We have also been
furnished with and  have examined  originals or copies,  certified or  otherwise
identified  to our satisfaction, of all  such records of the Company, agreements
and other  instruments,  certificates of  officers  and representatives  of  the
Company,  certificates of public officials and other documents as we have deemed
it necessary to require as a basis  for the opinions hereafter expressed. As  to
questions  of fact material to such opinions, we have, where relevant facts were
not independently established, relied upon certifications by principal  officers
of  the Company.  We have  made such further  legal and  factual examination and
investigation as  we deem  necessary  for purposes  of rendering  the  following
opinions.
 
    In  our examination we  have assumed the genuineness  of all signatures, the
legal capacity  of  natural persons,  the  correctness  of facts  set  forth  in
certificates,  the authenticity of  all documents submitted  to us as originals,
the conformity  to  original documents  of  all  documents submitted  to  us  as
certified  or photostatic copies, and the  authenticity of the originals of such
copies. We have also assumed that such documents have each been duly authorized,
properly executed and delivered  by each of the  parties thereto other than  the
Company.
 
    We are members of the bar of the State of California. Our opinions below are
limited  to the laws of the State  of California, the General Corporation Law of
the State of Delaware and the federal securities laws of the United States.
 
    Based on the foregoing, it is our opinion that all of the Shares, when  sold
and  delivered in  the manner  described in the  Prospectus will  be legally and
validly issued, fully paid and nonassessable.
 
    We consent to the filing of this  opinion as an exhibit to the  Registration
Statement  and consent to the use of  our name under the caption "Legal Matters"
in the Prospectus.
 
Very truly yours,
 
GRAHAM & JAMES LLP

<PAGE>
                                                                    EXHIBIT 23.2
 
                       CONSENT OF INDEPENDENT ACCOUNTANTS
 
    We  consent to the incorporation by  reference in the Registration Statement
on Form S-3 to be filed with the Securities and Exchange Commission on or  about
July  3, 1996,  by AccuMed International,  Inc. and subsidiaries  of our report,
which includes an explanatory paragraph  related to substantial doubt about  the
inability  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, 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. We also consent to
the reference to our firm under the caption "Experts."
 
                                             /s/ Coopers & Lybrand, L.L.P.
 
Sacramento, CA
July 3, 1996
<PAGE>
                                                                    EXHIBIT 23.2
                                                                     (CONTINUED)
 
                       CONSENT OF INDEPENDENT ACCOUNTANTS
 
    We consent to the incorporation  by reference in the Registration  Statement
on  Form S-3 to be filed with the Securities and Exchange Commission on or about
July 3, 1996,  by AccuMed  International, Inc.  and subsidiaries  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,
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.  We also  consent to  the
reference to our firm under the caption "Experts."
 
                                             /s/ Coopers & Lybrand, L.L.P.
 
Sacramento, CA
July 3, 1996
<PAGE>
                                                                    EXHIBIT 23.2
                                                                     (CONTINUED)
 
                       CONSENT OF INDEPENDENT ACCOUNTANTS
 
    We  consent to the incorporation by  reference in the Registration Statement
on Form S-3 to be filed with the Securities and Exchange Commission on or  about
July  3, 1996,  by AccuMed International,  Inc. and subsidiaries  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 3, 1996

<PAGE>
                                                                    EXHIBIT 23.3
 
                       CONSENT OF INDEPENDENT ACCOUNTANTS
 
    We  consent to the incorporation by  reference in the Registration Statement
on Form S-3 to be filed with the Securities and Exchange Commission on or  about
July  3, 1996,  by AccuMed  International, Inc.  and subsidiaries  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 3, 1996

<PAGE>
                                                                    EXHIBIT 23.4
                         INDEPENDENT AUDITORS' CONSENT
 
The Board of Directors
AccuMed International, Inc.
 
    We  consent to incorporation  by reference in  the registration statement on
Form S-3  of AccuMed  International, Inc.  of our  report dated  April 5,  1996,
relating  to the 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,  which report  appears in  the December  31, 1995  transition
report on Form 10-KSB of AccuMed International, Inc.
 
                                          KPMG Peat Marwick LLP
 
Chicago, Illinois
July 2, 1996


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