ACCUMED INTERNATIONAL INC
POS AM, 1996-07-30
IN VITRO & IN VIVO DIAGNOSTIC SUBSTANCES
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<PAGE>
   
     AS FILED WITH THE SECURITIES AND EXCHANGE COMMISSION ON JULY 30, 1996
    
   
                                                      REGISTRATION NO. 333-07681
    
- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------
 
                       SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D.C. 20549
                         ------------------------------
 
   
                         POST-EFFECTIVE AMENDMENT NO. 1
                                       TO
                                    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 LLP
                          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>
   
INFORMATION   CONTAINED  HEREIN  IS  SUBJECT   TO  COMPLETION  OR  AMENDMENT.  A
REGISTRATION STATEMENT  RELATING TO  THESE SECURITIES  HAS BEEN  FILED WITH  THE
SECURITIES  AND EXCHANGE  COMMISSION. THESE SECURITIES  MAY NOT BE  SOLD NOR MAY
OFFERS TO BUY BE ACCEPTED PRIOR  TO THE TIME THE REGISTRATION STATEMENT  BECOMES
EFFECTIVE.  THIS  PROSPECTUS  SHALL  NOT  CONSTITUTE AN  OFFER  TO  SELL  OR THE
SOLICITATION OF AN OFFER TO BUY NOR SHALL THERE BE ANY SALE OF THESE  SECURITIES
IN  ANY STATE IN WHICH SUCH OFFER,  SOLICITATION OR SALE WOULD BE UNLAWFUL PRIOR
TO REGISTRATION OR QUALIFICATION UNDER THE SECURITIES LAWS OF ANY SUCH STATE.
    
<PAGE>
   
        SUBJECT TO COMPLETION PRELIMINARY PROSPECTUS DATED JULY   , 1996
    
 
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 JULY   , 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.
333-07681) 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        IN OFFERING   NUMBER      PERCENT
- -------------------------------------------------------------  -----------------  -----------  ---------  -----------
<S>                                                            <C>                <C>          <C>        <C>
M. Kingdon Offshore NV (2)...................................         580,000         78,000     502,000         2.7
Nordbanken...................................................          40,000         40,000           0           *
Kingdon Partners, L.P. (2)...................................         163,800         26,000     137,800           *
Kingdon Associates, L.P. (2).................................         153,000         26,000           0           *
Christiana Fonds SA..........................................          25,000         25,000           0           *
Saga Securities SA...........................................          10,000         10,000           0           *
Republic New York Securities f/b/o ..........................          75,000         10,000      65,000           *
 Samisa Investment Corp.
Republic New York Securities f/b/o ..........................          85,000         10,000      75,000           *
 Emerge Capital
Republic New York Securities f/b/o ..........................          10,000         10,000           0           *
 Beko Investment Services
Republic New York Securities f/b/o ..........................           5,000          5,000           0           *
 Beko Investment Client A/C
Republic New York Securities f/b/o ..........................           5,000          5,000           0           *
 Fondspartners SA
Republic New York Securities f/b/o ..........................           4,000          4,000           0           *
 Bq. Prive Edmond Rothschild
Republic New York Securities f/b/o ..........................          18,000          3,000      15,000           *
 J. Watling
Republic New York Securities f/b/o ..........................          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.
    
 
   
(2) Kingdon Capital Management  Corp. ("KCMC") is a  general partner of  Kingdon
    Associates, L.P. and Kingdon Partners, L.P. and provides management services
    to  M. Kingdon Offshore NV (collectively,  the "Kingdon Funds"). As a result
    of such relationships,  KCMC may be  deemed to beneficially  own the  shares
    offered for sale by the Kingdon Funds.
    
 
    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 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;  (d)   face-to-face  transactions   between  sellers   and
purchasers  without a  broker-dealer; and (e)  short sales.  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.*
 4.6       Registration Rights Agreement
 5.1       Opinion of Graham & James LLP, counsel to the Registrant, regarding the legality of the securities
            offered hereby.*
</TABLE>
    
 
                                      II-1
<PAGE>
<TABLE>
<CAPTION>
 EXHIBIT
 NUMBER                                                DESCRIPTION
- ---------  ---------------------------------------------------------------------------------------------------
<S>        <C>
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>
 
- ------------------------
   
*   Indicates Exhibit previously filed.
    
 
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 July 29, 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 29, 1996
             (Peter P. Gombrich)               Officer)
 
                                               Vice President, Finance
                   /s/ MARK L. SANTOR          and Chief Financial
 -------------------------------------------   Officer (Principal          July 29, 1996
              (Mark L. Santor)                 Financial and Accounting
                                               Officer)
 
 -------------------------------------------   Director                        , 1996
              (John H. Abeles)
 
                   /s/ HAROLD S. BLUE
 -------------------------------------------   Director                    July 29, 1996
              (Harold S. Blue)
 
                  /s/ JACK H. HALPERIN
 -------------------------------------------   Director                    July 29, 1996
             (Jack H. Halperin)
</TABLE>
    
 
                                      II-3
<PAGE>
   
<TABLE>
<CAPTION>
                  SIGNATURE                              TITLE                  DATE
- ---------------------------------------------  -------------------------  ----------------
<C>                                            <S>                        <C>
 -------------------------------------------   Director                        , 1996
             (Paul F. Lavallee)
 
          /s/ JOSEPH W. PLANDOWSKI
 -------------------------------------------   Director                    July 29, 1996
           (Joseph W. Plandowski)
 
               /s/ LEONARD M. SCHILLER
 -------------------------------------------   Director                    July 25, 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.*
 4.6       Registration Rights Agreement
 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>
    
 
- ------------------------
   
*   Indicates Exhibit previously filed.
    
 
                                      II-5

<PAGE>

                                                                      EXHIBIT A
                                                                             TO
                                                                     SECURITIES
                                                                       PURCHASE
                                                                      AGREEMENT

                          REGISTRATION RIGHTS AGREEMENT

     REGISTRATION RIGHTS 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 the undersigned investors (together with their affiliates and
any assignee or transferee of all of their rights hereunder, the "INITIAL
INVESTORS").

     WHEREAS:



     A.   In connection with the Securities Purchase Agreement by and among the
parties hereto of even date herewith (the "SECURITIES PURCHASE AGREEMENT"), the
Company has agreed, upon the terms and subject to the conditions contained
therein, to issue and sell to the Initial Investors an aggregate of 170,000
shares of Common Stock, par value $.01 per share, of the Company (the "SHARES");
and

     B.   To induce the Initial Investors to execute and deliver the Securities
Purchase Agreement, the Company has agreed to provide certain registration
rights under the Securities Act of 1933, as amended, and the rules and
regulations thereunder, or any similar successor statute (collectively, the
"1933 ACT"), and applicable state securities laws;

     NOW, THEREFORE, in consideration of the premises and the mutual covenants
contained herein and other good and valuable consideration, the receipt and
sufficiency of which are hereby acknowledged, the Company and each of the
Initial Investors hereby agree as follows:

     1.   DEFINITIONS.

          a.   As used in this Agreement, the following terms shall have the
following meanings:

               (i)   "INVESTOR" means the Initial Investors and any transferee
or assignee who agrees to become bound by the provisions of this Agreement in
accordance with Section 9 hereof.

               (ii)  "REGISTER," "REGISTERED," and "REGISTRATION" refer to a
registration effected by preparing and filing a Registration Statement or
Statements in compliance with the 1933 Act and pursuant to Rule 415 under the
1933 Act or any successor rule providing for offering

<PAGE>

securities on a continuous basis ("RULE 415"), and the declaration or ordering
of effectiveness of such Registration Statement by the United States Securities
and Exchange Commission (the "SEC").

               (iii) "REGISTRABLE SECURITIES" means the Shares, as well as any
capital stock issued as a dividend or distribution on, or in exchange,
replacement or otherwise in respect of, the Shares.

               (iv)  "REGISTRATION STATEMENT" means a registration statement of
the Company under the 1933 Act.

          b.   Capitalized terms used herein and not otherwise defined herein
shall have the respective meanings set forth in the Securities Purchase
Agreement.

     2.   REGISTRATION.

          a.   MANDATORY REGISTRATION.  The Company shall prepare, and, on or
prior to the date which is fifteen (15) days after the date of the closing under
the Securities Purchase Agreement (the "CLOSING DATE"), file with the SEC a
Registration Statement on Form S-3 (or, if Form S-3 is not then available, on
such form of Registration Statement as is then available to effect a
registration of the Registrable Securities, subject to the consent of the
Initial Investors, which consent will not be unreasonably withheld) covering the
resale of the Registrable Securities, which Registration Statement, to the
extent allowable under the 1933 Act and the Rules promulgated thereunder
(including Rule 416),  shall state that such Registration Statement also covers
such indeterminate number of additional shares of Common Stock to prevent
dilution resulting from stock splits, stock dividends or similar transactions.
The Registration Statement (and each amendment or supplement thereto, and each
request for acceleration of effectiveness thereof) shall be provided to (and
subject to the reasonable approval of) the Initial Investors and their counsel
prior to its filing or other submission.

          b.   UNDERWRITTEN OFFERING.  If any offering pursuant to a
Registration Statement pursuant to Section 2(a) hereof involves an underwritten
offering, the Investors who hold a majority in interest of the Registrable
Securities subject to such underwritten offering, with the consent of the
Initial Investor, shall have the right to select one legal counsel and an
investment banker or bankers and manager or managers to administer the offering,
which investment banker or bankers or manager or managers shall be reasonably
satisfactory to the Company.

          c.   PAYMENTS BY THE COMPANY.  If (i) the Registration Statement
covering the Registrable Securities required to be filed by the Company pursuant
to Section 2(a) hereof is not declared effective by the SEC within sixty (60)
days after the Closing Date (other than by reason of any act or failure to act
by the Investors) or if, after the Registration Statement has been declared
effective by the SEC, sales cannot be made pursuant to the Registration
Statement (by reason of stop order, or the Company's failure to update the
Registration Statement), or (ii) the Common Stock is not listed or included for
quotation on the NASDAQ Small Cap ("NASDAQ SMALL CAP") or

                                        2

<PAGE>

NASDAQ National Market (the "NASDAQ-NMS"), the New York Stock Exchange (the
"NYSE")  or the American Stock Exchange (the "AMEX"), then the Company will make
payments to the Investors in such amounts and at such times as shall be
determined pursuant to this Section 2(c) as partial relief for the damages to
the Investors by reason of any such delay in or reduction of their ability to
sell the Registrable Securities (which remedy shall not be exclusive of any
other remedies available at law or in equity).  The Company shall pay to each
holder of Registerable Securities an amount equal to $780,000 multiplied by
three hundredths (.03) times the sum of: (i) the number of months (prorated for
partial months) after the end of such 60-day period and prior to the date the
Registration Statement is declared effective by the SEC, provided, however, that
there shall be excluded from such period any delays which are attributable to
changes required by the Investors in the Registration Statement, including,
without limitation, changes resulting from the assignment of rights hereunder
pursuant to Section 9 below, changes to the plan of distribution, or to the
failure of the Investors to conduct their review of the registration statement
pursuant to Section 2(a) above in a reasonably prompt manner; (ii) the number of
months (prorated for partial months) that sales cannot be made pursuant to the
Registration Statement after the Registration Statement has been declared
effective; and (iii) the number of months (prorated for partial months) that the
Common Stock is not listed or included for quotation on the NASDAQ Small Cap or
NASDAQ-NMS, NYSE or AMEX after the Registration Statement has been declared
effective.  (For example, if the Registration Statement becomes effective one
(1) month after the end of such 60-day period, the Company would pay $23,400
until any subsequent adjustment; if thereafter, sales could not be made pursuant
to the Registration Statement for an additional period of one (1) month, the
Company would pay an additional $23,400.  Such amounts shall be paid in cash or,
if such cash amounts are not paid within ten (10) days of the date when due in
accordance with the penultimate sentence of this paragraph, at each Investor's
option, such cash amounts may be converted into Common Stock at a 35% discount
to the average closing bid prices for the Common Stock on NASDAQ Small Cap for
the ten (10) trading days preceding the Investor's notice to the Company that it
desires to so convert.  Any shares of Common Stock issued upon conversion of
such amounts shall be Registrable Securities.  Payments of cash pursuant hereto
shall be made within five (5) days after the end of each period that gives rise
to such obligation, provided that, if any such period extends for more than
thirty (30) days, interim payments shall be made for each such thirty (30) day
period.  If such cash amounts are not paid within ten (10) days of the date when
due, and the Investors elect to convert such amounts into Common Stock, the
Company shall deliver Common Stock in accordance with the terms of this
paragraph as promptly as practicable.

          d.   PIGGY-BACK REGISTRATIONS.  If at any time prior to the expiration
of the Registration Period (as hereinafter defined) the Company shall file with
the SEC a Registration Statement relating to an offering for its own account or
the account of others under the 1933 Act of any of its equity securities (other
than on Form S-4 or Form S-8 or their then equivalents relating to equity
securities to be issued solely in connection with any acquisition of any entity
or business or equity securities issuable in connection with stock option or
other employee benefit plans) the Company shall send to each Investor who is
entitled to registration rights under this Section 2(d) written notice of such
determination and, if within fifteen  (15) days after the effective date of such
notice, such Investor shall so request in writing, the Company shall include in
such Registration

                                        3

<PAGE>

Statement all or any part of the Registrable Securities such Investor requests
to be registered, except that if, in connection with any underwritten public
offering for the account of the Company the managing underwriter(s) thereof
shall impose a limitation on the number of shares of Common Stock which may be
included in the Registration Statement because, in such underwriter(s)'
judgment, marketing or other factors dictate such limitation is necessary to
facilitate public distribution, then the Company shall be obligated to include
in such Registration Statement only such limited portion of the Registrable
Securities with respect to which such Investor has requested inclusion
hereunder.  Any exclusion of Registrable Securities shall be made pro rata among
the Investors seeking to include Registrable Securities, in proportion to the
number of Registrable Securities sought to be included by such Investors;
PROVIDED, HOWEVER, that the Company shall not exclude any Registrable Securities
unless the Company has first excluded all outstanding securities, the holders of
which are not entitled to inclusion of such securities in such Registration
Statement or are not entitled to pro rata inclusion with the Registrable
Securities; and PROVIDED, FURTHER, HOWEVER, that, after giving effect to the
immediately preceding proviso, any exclusion of Registrable Securities shall be
made pro rata with holders of other securities having the right to include such
securities in the Registration Statement other than holders of securities
entitled to inclusion of their securities in such Registration Statement by
reason of demand registration rights.  No right to registration of Registrable
Securities under this Section 2(d) shall be construed to limit any registration
required under Section 2(a) hereof.  If an offering in connection with which an
Investor is entitled to registration under this Section 2(d) is an underwritten
offering, then each Investor whose Registrable Securities are included in such
Registration Statement shall, unless otherwise agreed by the Company, offer and
sell such Registrable Securities in an underwritten offering using the same
underwriter or underwriters and, subject to the provisions of this Agreement, on
the same terms and conditions as other shares of Common Stock included in such
underwritten offering.

          e.   ELIGIBILITY FOR FORM S-3.  The Company represents and warrants
that it meets the requirements for the use of Form S-3 for registration of the
sale by the Buyer and any other Investor of the Registrable Securities and the
Company shall file all reports required to be filed by the Company with the SEC
in a timely manner and shall maintain such listings of the Common Stock so as to
maintain such eligibility for the use of Form S-3.

     3.   OBLIGATIONS OF THE COMPANY.

     In connection with the registration of the Registrable Securities, the
Company shall have the following obligations:

          a.   The Company shall prepare promptly, and file with the SEC not
later than fifteen (15) days after the Closing Date, a Registration Statement
with respect to the number of Registrable Securities provided in Section 2(a),
and thereafter to use its best efforts to cause each Registration Statement
relating to Registrable Securities to become effective as soon as possible after
such filing, and keep the Registration Statement effective pursuant to Rule 415
at all times until such date as is the earlier of (i) the date on which all of
the Registrable Securities have been sold and (ii) the date on which the
Registrable Securities (in the opinion of counsel to the Initial Investor, in
form,

                                        4

<PAGE>

substance and scope reasonably acceptable to the Company) may be immediately
sold without registration (the "REGISTRATION PERIOD"), which Registration
Statement (including any amendments or supplements thereto and prospectuses
contained therein) shall not contain any untrue statement of a material fact or
omit to state a material fact required to be stated therein, or necessary to
make the statements therein, in light of the circumstances in which they were
made, not misleading.

          b.   The Company shall prepare and file with the SEC such amendments
(including post-effective amendments) and supplements to the Registration
Statement and the prospectus used in connection with the Registration Statement
as may be necessary to keep the Registration Statement effective at all times
during the Registration Period, and, during such period, comply with the
provisions of the 1933 Act with respect to the disposition of all Registrable
Securities of the Company covered by the Registration Statement until such time
as all of such Registrable Securities have been disposed of in accordance with
the intended methods of disposition by the seller or sellers thereof as set
forth in the Registration Statement.

          c.   The Company shall furnish to each Investor whose Registrable
Securities are included in the Registration Statement and its legal counsel (i)
promptly after the same is prepared and publicly distributed, filed with the
SEC, or received by the Company, one copy of the Registration Statement and any
amendment thereto each preliminary prospectus and prospectus and each amendment
or supplement thereto, and, in the case of the Registration Statement referred
to in Section 2(a), each letter written by or on behalf of the Company to the
SEC or the staff of the SEC, and each item of correspondence from the SEC or the
staff of the SEC, in each case relating to such Registration Statement (other
than any portion of any thereof which contains information for which the Company
has sought confidential treatment), and (ii) such number of copies of a
prospectus, including a preliminary prospectus, and all amendments and
supplements thereto and such other documents as such Investor may reasonably
request in order to facilitate the disposition of the Registrable Securities
owned by such Investor.

          d.   The Company shall use reasonable efforts to (i) register and
qualify the Registrable Securities covered by the Registration Statement under
such other securities or "blue sky" laws of such jurisdictions in the United
States as the Investors who hold a majority in interest of the Registrable
Securities being offered reasonably request, (ii) prepare and file in those
jurisdictions such amendments (including post-effective amendments) and
supplements to such registrations and qualifications as may be necessary to
maintain the effectiveness thereof during the Registration Period, (iii) take
such other actions as may be necessary to maintain such registrations and
qualifications in effect at all times during the Registration Period, and (iv)
take all other actions reasonably necessary or advisable to qualify the
Registrable Securities for sale in such jurisdictions; PROVIDED, HOWEVER, that
the Company shall not be required in connection therewith or as a condition
thereto to (a) qualify to do business in any jurisdiction where it would not
otherwise be required to qualify but for this Section 3(d), (b) subject itself
to general taxation in any such jurisdiction, (c) file a general consent to
service of process in any such jurisdiction, (d) provide any undertakings that
cause more than nominal expense or burden to the Company, or (e) make any change
in its charter

                                        5

<PAGE>

or bylaws, which in each case the Board of Directors of the Company determines
to be contrary to the best interests of the Company and its stockholders.

          e.   In the event Investors who hold a majority in interest of the
Registrable Securities being offered in the offering  (with the approval of the
Initial Investor) select underwriters for the offering, the Company shall enter
into and perform its obligations under an underwriting agreement, in usual and
customary form, including, without limitation, customary indemnification and
contribution obligations, with the underwriters of such offering.

          f.   As promptly as practicable after becoming aware of such event,
the Company shall notify each Investor of the happening of any event, of which
the Company has knowledge, as a result of which the prospectus included in the
Registration Statement, as then in effect, includes an untrue statement of a
material fact or omission to state a material fact required to be stated therein
or necessary to make the statements therein, in light of the circumstances under
which they were made, not misleading, and use its best efforts promptly to
prepare a supplement or amendment to the Registration Statement to correct such
untrue statement or omission, and deliver such number of copies of such
supplement or amendment to each Investor as such Investor may reasonably
request; provided, that, not more than once in any twelve month period, for up
to a period of thirty (30) days, the Company may delay the disclosure of
material non-public information concerning the Company the disclosure of which
at the time is not, in the good faith opinion of the Board of Directors of the
Company, in the best interest of the Company and, in the opinion of counsel to
the Company, otherwise required (an "ALLOWED DELAY"); provided, further, that
the Company shall promptly (i) notify the Investors in writing of the existence
of  material non-public information giving rise to an Allowed Delay and (ii)
advise the Investors in writing to cease all sales under the Registration
Statement until the end of the Allowed Delay.  Notwithstanding the first proviso
of the immediately preceding sentence, the provisions of Section 2(c) shall be
applicable during the period of an Allowed Delay.  Upon expiration of the
Allowed Delay, the Company shall again be bound by the first sentence of this
Section 3(f) with respect to the information giving rise thereto.

          g.   The Company shall use its best efforts to prevent the issuance of
any stop order or other suspension of effectiveness of a Registration Statement,
and, if such an order is issued, to obtain the withdrawal of such order at the
earliest possible moment and to notify each Investor who holds Registrable
Securities being sold (or, in the event of an underwritten offering, the
managing underwriters) of the issuance of such order and the resolution thereof.


          h.   The Company shall permit a single firm of counsel designated by
the Initial Investor to review the Registration Statement and all amendments and
supplements thereto a reasonable period of time prior to their filing with the
SEC, and not file any document in a form to which such counsel reasonably
objects.

          i.   The Company shall make generally available to its security
holders as soon as practical, but not later than ninety (90) days after the
close of the period covered thereby, an earnings statement (in form complying
with the provisions of Rule 158 under the 1933 Act) covering

                                        6

<PAGE>

a twelve-month period beginning not later than the first day of the Company's
fiscal quarter next following the effective date of the Registration Statement.

          j.   At the request of the Initial Investor or any Investor or group
of Investors holding Registrable Securities having a Market Price of at least
$500,000, the Company shall furnish, on the date that Registrable Securities are
delivered to an underwriter, if any, for sale in connection with the
Registration Statement or, if such securities are not being sold by an
underwriter, on the date of effectiveness thereof (i) an opinion, dated as of
such date, from counsel representing the Company for purposes of such
Registration Statement, in form, scope and substance as is customarily given in
an underwritten public offering, addressed to the underwriters, if any, and the
Investors and (ii) solely in the case of an underwritten offering, a letter,
dated such date, from the Company's independent certified public accountants in
form and substance as is customarily given by independent certified public
accountants to underwriters in an underwritten public offering, addressed to the
underwriters.

          k.   The Company shall make available for inspection by (i) any
Investor, (ii) any underwriter participating in any disposition pursuant to the
Registration Statement, (iii) one firm of attorneys and one firm of accountants
or other agents retained by the Initial Investor, (iv) one firm of attorneys and
one firm of accountants or other agents retained by all other Investors, and (v)
one firm of attorneys retained by all such underwriters (collectively, the
"INSPECTORS") all pertinent financial and other records, and pertinent corporate
documents and properties of the Company (collectively, the "RECORDS"), as shall
be reasonably deemed necessary by each Inspector to enable each Inspector to
exercise its due diligence responsibility, and cause the Company's officers,
directors and employees to supply all information which any Inspector may
reasonably request for purposes of such due diligence; PROVIDED, HOWEVER, that
each Inspector shall hold in confidence and shall not make any disclosure
(except to an Investor) of any Record or other information which the Company
determines in good faith to be confidential, and of which determination the
Inspectors are so notified, unless (a) the disclosure of such Records is
necessary to avoid or correct a misstatement or omission in any Registration
Statement, (b) the release of such Records is ordered pursuant to a subpoena or
other order from a court or government body of competent jurisdiction, or (c)
the information in such Records has been made generally available to the public
other than by disclosure in violation of this or any other agreement.  The
Company shall not be required to disclose any confidential information in such
Records to any Inspector until and unless such Inspector shall have entered into
confidentiality agreements (in form and substance satisfactory to the Company)
with the Company with respect thereto, substantially in the form of this Section
3(k).  Each Investor agrees that it shall, upon learning that disclosure of such
Records is sought in or by a court or governmental body of competent
jurisdiction or through other means, give prompt notice to the Company and allow
the Company, at its expense, to undertake appropriate action to prevent
disclosure of, or to obtain a protective order for, the Records deemed
confidential.  Nothing herein shall be deemed to limit the Investor's ability to
sell Registrable Securities in a manner which is otherwise consistent with
applicable laws and regulations.

                                        7

<PAGE>

          l.   The Company shall hold in confidence and not make any disclosure
of information concerning an Investor provided to the Company unless (i)
disclosure of such information is necessary to comply with federal or state
securities laws, (ii) the disclosure of such information is necessary to avoid
or correct a misstatement or omission in any Registration Statement, (iii) the
release of such information is ordered pursuant to a subpoena or other order
from a court or governmental body of competent jurisdiction, or (iv) such
information has been made generally available to the public other than by
disclosure in violation of this or any other agreement.  The Company agrees that
it shall, upon learning that disclosure of such information concerning an
Investor is sought in or by a court or governmental body of competent
jurisdiction or through other means, give prompt notice to such Investor prior
to making such disclosure, and allow the Investor, at its expense, to undertake
appropriate action to prevent disclosure of, or to obtain a protective order
for, such information.

          m.   The Company shall use its best efforts either to (i) cause all
the Registrable Securities covered by the Registration Statement to be listed on
a national securities exchange and on each additional national securities
exchange on which securities of the same class or series issued by the Company
are then listed, if any, if the listing of such Registrable Securities is then
permitted under the rules of such exchange, or (ii) secure designation and
quotation of all the Registrable Securities covered by the Registration
Statement on the NASDAQ-NMS or, if, despite the Company's best efforts to
satisfy the preceding clause (i) or (ii), the Company is unsuccessful in
satisfying the preceding clause (i) or (ii), to secure the inclusion for
quotation on the NASDAQ Small Cap for such Registrable Securities and, without
limiting the generality of the foregoing, to arrange for at least two market
makers to register with the National Association of Securities Dealers, Inc.
("NASD") as such with respect to such Registrable Securities.

          n.   The Company shall provide a transfer agent and registrar, which
may be a single entity, for the Registrable Securities not later than the
effective date of the Registration Statement.

          o.   The Company shall cooperate with the Investors who hold
Registrable Securities being offered and the managing underwriter or
underwriters, if any, to facilitate the timely preparation and delivery of
certificates (not bearing any restrictive legends) representing Registrable
Securities to be offered pursuant to the Registration Statement and enable such
certificates to be in such denominations or amounts, as the case may be, as the
managing underwriter or underwriters, if any, or the Investors may reasonably
request and registered in such names as the managing underwriter or
underwriters, if any, or the Investors may request, and, within three (3)
business days after a Registration Statement which includes Registrable
Securities is ordered effective by the SEC, the Company shall deliver, and shall
cause legal counsel selected by the Company to deliver, to the transfer agent
for the Registrable Securities (with copies to the Investors whose Registrable
Securities are included in such Registration Statement) an instruction in the
form attached hereto as EXHIBIT 1 and an opinion of such counsel in the form
attached hereto as EXHIBIT 2.

                                        8

<PAGE>

          p.   The Company shall take all other reasonable actions necessary to
expedite and facilitate disposition by the Investors of Registrable Securities
pursuant to the Registration Statement.

     4.   OBLIGATIONS OF THE INVESTORS.

     In connection with the registration of the Registrable Securities, the
Investors shall have the following obligations:

          a.   It shall be a condition precedent to the obligations of the
Company to complete the registration pursuant to this Agreement with respect to
the Registrable Securities of a particular Investor that such Investor shall
furnish to the Company such information regarding itself, the Registrable
Securities held by it and the intended method of disposition of the Registrable
Securities held by it as shall be reasonably required to effect the registration
of such Registrable Securities and shall execute such documents in connection
with such registration as the Company may reasonably request.  At least three
(3) business days prior to the first anticipated filing date of the Registration
Statement, the Company shall notify each Investor of the information ("REQUESTED
INFORMATION") the Company requires from each such Investor if such Investor
elects to have any of such Investor's Registrable Securities included in the
Registration Statement.  If at least one (1) business day prior to the filing
date the Company has not received the Requested Information from an Investor,
then the Company shall not be responsible to such Investor for the failure to
include such Requested Information or for any inaccuracies in respect thereof.

          b.   Each Investor by such Investor's acceptance of the Registrable
Securities agrees to cooperate with the Company as reasonably requested by the
Company in connection with the preparation and filing of the Registration
Statement hereunder, unless such Investor has notified the Company in writing of
such Investor's election to exclude all of such Investor's Registrable
Securities from the Registration Statement.

          c.   In the event Investors holding a majority in interest of the
Registrable Securities being registered (with the approval of the Initial
Investor) determine to engage the services of an underwriter, each Investor
agrees to enter into and perform such Investor's obligations under an
underwriting agreement, in usual and customary form, including, without
limitation, customary indemnification and contribution obligations, with the
managing underwriter of such offering and take such other actions as are
reasonably required in order to expedite or facilitate the disposition of the
Registrable Securities, unless such Investor has notified the Company in writing
of such Investor's election to exclude all of such Investor's Registrable
Securities from the Registration Statement.

          d.   Each Investor agrees that, upon receipt of any notice from the
Company of the happening of any event of the kind described in Section 3(f) or
3(g), such Investor will immediately discontinue disposition of Registrable
Securities pursuant to the Registration Statement covering such Registrable
Securities until such Investor's receipt of the copies of the supplemented

                                        9

<PAGE>

or amended prospectus contemplated by Section 3(f) or 3(g) and, if so directed
by the Company, such Investor shall deliver to the Company (at the expense of
the Company) or destroy (and deliver to the Company a certificate of
destruction) all copies in such Investor's possession, of the prospectus
covering such Registrable Securities current at the time of receipt of such
notice.

          e.   No Investor may participate in any underwritten registration
hereunder unless such Investor (i) agrees to sell such Investor's Registrable
Securities on the basis provided in any underwriting arrangements in usual and
customary form entered into by the Company, (ii) completes and executes all
questionnaires, powers of attorney, indemnities, underwriting agreements and
other documents reasonably required under the terms of such underwriting
arrangements, and (iii) agrees to pay its pro rata share of all underwriting
discounts and commissions and any expenses in excess of those payable by the
Company pursuant to Section 5 below.

     5.   EXPENSES OF REGISTRATION.

     All reasonable expenses, other than underwriting discounts and commissions,
incurred in connection with registrations, filings or qualifications pursuant to
Sections 2 and 3, including, without limitation, all registration, listing and
qualifications fees, printers and accounting fees, the fees and disbursements of
counsel for the Company, and the reasonable fees and disbursements of one
counsel  selected by the Initial Investor pursuant to Section 2(b) hereof (up to
a maximum of $10,000, inclusive of the Initial Investors' expenses payable by
the Company pursuant to Section 4(f) of the Securities Purchase Agreement),
shall be borne by the Company.

     6.   INDEMNIFICATION.

     In the event any Registrable Securities are included in a Registration
Statement under this Agreement:

          a.   To the extent permitted by law, the Company will indemnify, hold
harmless and defend (i) each Investor who holds such Registrable Securities,
(ii) the directors, officers, partners, employees, agents and each person who
controls any Investor within the meaning of the 1933 Act or the Securities
Exchange Act of 1934, as amended (the "1934 ACT"), if any, and (iii) any
underwriter (as defined in the 1933 Act) for the Investors; and the directors,
officers, partners, employees and each person who controls any such underwriter
within the meaning of the 1933 Act or the 1934 Act, if any, (each, an
"INDEMNIFIED PERSON"), against any joint or several losses, claims, damages,
liabilities or expenses  (collectively, together with actions, proceedings or
inquiries by any regulatory or self-regulatory organization, whether commenced
or threatened, in respect thereof, "CLAIMS") to which any of them may become
subject insofar as such Claims arise out of or are based upon: (i) any untrue
statement or alleged untrue statement of a material fact in a Registration
Statement or the omission or alleged omission to state therein a material fact
required to be stated or necessary to make the statements therein not
misleading, (ii) any untrue statement or alleged untrue statement of a material
fact contained in any preliminary prospectus if used prior to the effective date
of such Registration Statement, or contained in the final prospectus (as amended
or

                                       10

<PAGE>

supplemented, if the Company files any amendment thereof or supplement thereto
with the SEC) or the omission or alleged omission to state therein any material
fact necessary to make the statements made therein, in light of the
circumstances under which the statements therein were made, not misleading, or
(iii) any violation or alleged violation by the Company of the 1933 Act, the
1934 Act, any other law, including, without limitation, any state securities
law, or any rule or regulation thereunder relating to the offer or sale of the
Registrable Securities (the matters in the foregoing clauses (i) through (iii)
being, collectively, "VIOLATIONS").  Subject to the restrictions set forth in
Section 6(c) with respect to the number of legal counsel, the Company shall
reimburse the Investors and each such underwriter or controlling person,
promptly as such expenses are incurred and are due and payable, for any
reasonable legal fees or other reasonable expenses incurred by them in
connection with investigating or defending any such Claim.  Notwithstanding
anything to the contrary contained herein, the indemnification agreement
contained in this Section 6(a): (i) shall not apply to a Claim arising out of or
based upon a Violation which occurs in reliance upon and in conformity with
information furnished in writing to the Company by any Indemnified Person or
underwriter for such Indemnified Person expressly for use in connection with the
preparation of the Registration Statement or any such amendment thereof or
supplement thereto, if such prospectus was timely made available by the Company
pursuant to Section 3(c) hereof; (ii) shall not apply to amounts paid in
settlement of any Claim if such settlement is effected without the prior written
consent of the Company, which consent shall not be unreasonably withheld; and
(iii) with respect to any preliminary prospectus, shall not inure to the benefit
of any Indemnified Person if the untrue statement or omission of material fact
contained in the preliminary prospectus was corrected on a timely basis in the
prospectus, as then amended or supplemented, such corrected prospectus was
timely made available by the Company pursuant to Section 3(c) hereof, and the
Indemnified Person was promptly advised in writing not to use the incorrect
prospectus prior to the use giving rise to a Violation and such Indemnified
Person, notwithstanding such advise, used it.  Such indemnity shall remain in
full force and effect regardless of any investigation made by or on behalf of
the Indemnified Person and shall survive the transfer of the Registrable
Securities by the Investors pursuant to Section 9.

          b.   In connection with any Registration Statement in which an
Investor is participating, each such Investor agrees severally and not jointly
to indemnify, hold harmless and defend, to the same extent and in the same
manner set forth in Section 6(a), the Company, each of its directors, each of
its officers who signs the Registration Statement, each person, if any, who
controls the Company within the meaning of the 1933 Act or the 1934 Act, any
underwriter and any other stockholder selling securities pursuant to the
Registration Statement or any of its directors or officers or any person who
controls such stockholder or underwriter within the meaning of the 1933 Act or
the 1934 Act (collectively and together with an Indemnified Person, an
"INDEMNIFIED PARTY"), against any Claim to which any of them may become subject,
under the 1933 Act, the 1934 Act or otherwise, insofar as such Claim arises out
of or is based upon any Violation, in each case to the extent (and only to the
extent) that such Violation occurs in reliance upon and in conformity with
written information furnished to the Company by such Investor expressly for use
in connection with such Registration Statement; and subject to Section 6(c) such
Investor will reimburse any legal or other expenses (promptly as such expenses
are incurred and are due and payable) reasonably

                                       11

<PAGE>

incurred by them in connection with investigating or defending any such Claim;
PROVIDED, HOWEVER, that the indemnity agreement contained in this Section 6(b)
shall not apply to amounts paid in settlement of any Claim if such settlement is
effected without the prior written consent of such Investor, which consent shall
not be unreasonably withheld; PROVIDED, FURTHER, HOWEVER, that the Investor
shall be liable under this Section 6(b) for only that amount of a Claim as does
not exceed the net proceeds to such Investor as a result of the sale of
Registrable Securities pursuant to such Registration Statement.  Such indemnity
shall remain in full force and effect regardless of any investigation made by or
on behalf of such Indemnified Party and shall survive the transfer of the
Registrable Securities by the Investors pursuant to Section 9. Notwithstanding
anything to the contrary contained herein, the indemnification agreement
contained in this Section 6(b) with respect to any preliminary prospectus shall
not inure to the benefit of any Indemnified Party if the untrue statement or
omission of material fact contained in the preliminary prospectus was corrected
on a timely basis in the prospectus, as then amended or supplemented.

          c.   Promptly after receipt by an Indemnified Person or Indemnified
Party under this Section 6 of notice of the commencement of any action
(including any governmental action), such Indemnified Person or Indemnified
Party shall, if a Claim in respect thereof is to made against any indemnifying
party under this Section 6, deliver to the indemnifying party a written notice
of the commencement thereof, and the indemnifying party shall have the right to
participate in, and, to the extent the indemnifying party so desires, jointly
with any other indemnifying party similarly noticed, to assume control of the
defense thereof with counsel mutually satisfactory to the indemnifying party and
the Indemnified Person or the Indemnified Party, as the case may be; PROVIDED,
HOWEVER, that an Indemnified Person or Indemnified Party shall have the right to
retain its own counsel with the fees and expenses to be paid by the indemnifying
party, if, in the reasonable opinion of counsel retained by the indemnifying
party, the representation by such counsel of the Indemnified Person or
Indemnified Party and the indemnifying party would be inappropriate due to
actual or potential differing interests between such Indemnified Person or
Indemnified Party and any other party represented by such counsel in such
proceeding.  The indemnifying party shall pay for only one separate legal
counsel for  the Indemnified Persons or the Indemnified Parties, as applicable,
and such legal counsel shall be selected by Investors holding a majority-in-
interest of the  Registrable Securities included in the Registration Statement
to which the Claim relates (with the approval of the Initial Investor if it
holds Registrable Securities included in such Registration Statement), if the
Investors are entitled to indemnification hereunder, or the Company, if the
Company is entitled to indemnification hereunder, as applicable.  The failure to
deliver written notice to the indemnifying party within a reasonable time of the
commencement of any such action shall not relieve such indemnifying party of any
liability to the Indemnified Person or Indemnified Party under this Section 6,
except to the extent that the indemnifying party is actually prejudiced in its
ability to defend such action.  The indemnification required by this Section 6
shall be made by periodic payments of the amount thereof during the course of
the investigation or defense, as such expense, loss, damage or liability is
incurred and is due and payable.


                                       12

<PAGE>

     7.   CONTRIBUTION.

     To the extent any indemnification by an indemnifying party is prohibited or
limited by law, the indemnifying party agrees to make the maximum contribution
with respect to any amounts for which it would otherwise be liable under Section
6 to the fullest extent permitted by law; PROVIDED, HOWEVER, that (i) no
contribution shall be made under circumstances where the maker would not have
been liable for indemnification under the fault standards set forth in Section
6, (ii) no seller of Registrable Securities guilty of fraudulent
misrepresentation (within the meaning of Section 11(f) of the 1933 Act) shall be
entitled to contribution from any seller of Registrable Securities who was not
guilty of such fraudulent misrepresentation, and (iii) contribution by any
seller of Registrable Securities shall be limited in amount to the net amount of
proceeds received by such seller from the sale of such Registrable Securities.

     8.   REPORTS UNDER THE 1934 ACT.

     With a view to making available to the Investors the benefits of Rule 144
promulgated under the 1933 Act or any other similar rule or regulation of the
SEC that may at any time permit the investors to sell securities of the Company
to the public without registration ("RULE 144"), the Company agrees to:

          a.   make and keep public information available, as those terms are
understood and defined in Rule 144;

          b.   file with the SEC in a timely manner all reports and other
documents required of the Company under the 1933 Act and the 1934 Act so long as
the Company remains subject to such requirements (it being understood that
nothing herein shall limit the Company's obligations under Section 4(c) of the
Securities Purchase Agreement) and the filing of such reports and other
documents is required for the applicable provisions of Rule 144; and

          c.   furnish to each Investor so long as such Investor owns
Registrable Securities, promptly upon request, (i) a written statement by the
Company that it has complied with the reporting requirements of Rule 144, the
1933 Act and the 1934 Act, (ii) a copy of the most recent annual or quarterly
report of the Company and such other reports and documents so filed by the
Company, and (iii) such other information as may be reasonably requested to
permit the Investors to sell such securities pursuant to Rule 144 without
registration.

     9.   ASSIGNMENT OF REGISTRATION RIGHTS.

     The rights to have the Company register Registrable Securities pursuant to
this Agreement shall be automatically assignable by the Investors to any
transferee of all or any portion of Registrable Securities if: (i) the Investor
agrees in writing with the transferee or assignee to assign such rights, and a
copy of such agreement is furnished to the Company within a reasonable time
after such assignment, (ii) the Company is, within a reasonable time after such
transfer or assignment,

                                       13

<PAGE>

furnished with written notice of (a) the name and address of such transferee or
assignee, and (b) the securities with respect to which such registration rights
are being transferred or assigned, (iii) following such transfer or assignment
the further disposition of such securities by the transferee or assignee is
restricted under the 1933 Act and applicable state securities laws, (iv) at or
before the time the Company receives the written notice contemplated by clause
(ii) of this sentence the transferee or assignee agrees in writing with the
Company to be bound by all of the provisions contained herein, (v) such transfer
shall have been made in accordance with the applicable requirements of the
Securities Purchase Agreement, and (vi) such transferee shall be an "ACCREDITED
INVESTOR" as that term defined in Rule 501 of Regulation D promulgated under the
1933 Act.

     10.  AMENDMENT OF REGISTRATION RIGHTS.

     Provisions of this Agreement may be amended and the observance thereof may
be waived (either generally or in a particular instance and either retroactively
or prospectively), only with written consent of the Company, the Initial
Investor and Investors who hold a majority interest of the Registrable
Securities.  Any amendment or waiver effected in accordance with this Section 10
shall be binding upon each Investor and the Company.

     11.  MISCELLANEOUS.

          a.   A person or entity is deemed to be a holder of Registrable
Securities whenever such person or entity owns of record such Registrable
Securities.  If the Company receives conflicting instructions, notices or
elections from two or more persons or entities with respect to the same
Registrable Securities, the Company shall act upon the basis of instructions,
notice or election received from the registered owner of such Registrable
Securities.

          b.   Notices required or permitted to be given hereunder shall be in
writing and shall be deemed to be sufficiently given when personally delivered
(by hand, by courier, by telephone line facsimile transmission or other means)
or sent by certified mail, return receipt requested, properly addressed and with
proper postage pre-paid,

     if to the Company:

     AccuMed International, Inc.
     920 N. Franklin Street
     Chicago, Illinois 60610
     Attention: Peter Gombrick, CEO

                                       14

<PAGE>

     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.

and if to any other Investor, at such address as such Investor shall have
provided in writing to the Company, or at such other address as each such party
furnishes by notice given in accordance with this Section 11(b), and shall be
effective, when personally delivered, upon receipt and, when so sent by
certified mail, four days after deposit with the United States Postal Service.

          c.   Failure of any party to exercise any right or remedy under this
Agreement or otherwise, or delay by a party in exercising such right or remedy,
shall not operate as a waiver thereof.

          d.   This Agreement shall be enforced, governed by and construed in
accordance with the laws of the State of New York applicable to agreements made
and to be performed entirely within such State.  In the event that any provision
of this Agreement is invalid or unenforceable under any applicable statute or
rule of law, then such provision shall be deemed inoperative to the extent that
it may conflict therewith and shall be deemed modified to conform with such
statute or rule of law.  Any provision hereof which may prove invalid or
unenforceable under any law shall not affect the validity or enforceability of
any other provision hereof.

          e.   This Agreement and the Securities Purchase Agreement constitute
the entire agreement among the parties hereto with respect to the subject matter
hereof and thereof.  There are no restrictions, promises, warranties or
undertakings, other than those set forth or referred to herein

                                       15

<PAGE>

and therein.  This Agreement and the Securities Purchase Agreement supersede all
prior agreements and understandings among the parties hereto with respect to the
subject matter hereof and thereof.

          f.   Subject to the requirements of Section 9 hereof, this Agreement
shall inure to the benefit of and be binding upon the successors and assigns of
each of the parties hereto.

          g.   The headings in this Agreement are for convenience of reference
only and shall not limit or otherwise affect the meaning hereof.

          h.   This Agreement may be executed in two or more counterparts, each
of which shall be deemed an original but all of which shall constitute one and
the same agreement.  This Agreement, once executed by a party, may be delivered
to the other party hereto by facsimile transmission of a copy of this Agreement
bearing the signature of the party so delivering this Agreement.

          i.   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.

          j.   Kingdon Capital Management Corp. shall have exclusive authority
to act on behalf of the Initial Investors with respect to the matters
contemplated by this Agreement and any such action shall be binding upon the
Initial Investors.



                  [REMAINDER OF PAGE INTENTIONALLY LEFT BLANK] 
                                       16

<PAGE>

     IN WITNESS WHEREOF, the parties have caused this Agreement to be duly
executed.


ACCUMED INTERNATIONAL, INC.             KINGDON ASSOCIATES, L.P.
                                        By:  Kingdon Capital Management Corp.,
                                             its general partner
By:/s/ Peter P. Gombrich
   -------------------------------
Name:  Peter P. Gombrich
     -----------------------------
Its:   CEO                              By: /s/M. Kingdon
    ------------------------------         ----------------------------------
                                         Name:  Mark Kingdon
                                         Title:    President


                                        KINGDON PARTNERS, L.P.

                                        By:  Kingdon Capital Management Corp.,
                                             its general partner


                                        By: /s/M. Kingdon
                                           ----------------------------------
                                         Name:  Mark Kingdon
                                         Title: President


                                        M. KINGDON OFFSHORE NV

                                        By:  Kingdon Capital Management Corp.,
                                        its investment advisor


                                        By: /s/M. Kingdon
                                           ----------------------------------
                                          Name:   Mark Kingdon
                                          Title:  President


<PAGE>


                                                                      EXHIBIT I
                                                                             TO
                                                                   REGISTRATION
                                                                         RIGHTS
                                                                      AGREEMENT


                              [Company Letterhead]

                                           [Date]

[Name and address of Transfer Agent]

Ladies and Gentlemen;

          This letter shall serve as our irrevocable authorization and direction
to you to transfer or re-register the certificates for the shares of Common
Stock, $.01 par value (the "COMMON STOCK"), of ACCUMED INTERNATIONAL, INC., a
Delaware corporation (the "COMPANY"), represented by certificate numbers ____
for an aggregate of ____ shares (the "OUTSTANDING SHARES") of Common Stock
presently registered in the name of [Name of Investor] (which shares were
previously issued pursuant to the terms of the Securities Purchase Agreement,
dated as of May 31, 1996, by and among Accumed International, Inc. and each of
the purchasers set forth therein upon surrender of such certificates to you (or
evidence of loss, theft or destruction thereof), notwithstanding the legend
appearing on such certificates. The transfer or re-registration of the
certificates for the Outstanding Shares by you should be made at such time as
you are requested to do so by the record holder of the Outstanding Shares. The
certificate issued upon such transfer or re-registration should be registered in
such name as requested by the holder of record of the certificate surrendered to
you and should not bear any legend which would restrict the transfer of the
shares represented thereby. In addition, you are hereby directed to remove any
stop-transfer instruction relating to the Outstanding Shares.

          Contemporaneous with the delivery of this letter, the Company is
delivering to you an opinion of ________________ as to registration of the
Outstanding Shares under the Securities Act of 1933, as amended.

<PAGE>

          Should you have any questions concerning this matter, please contact
me.

                                        Very truly yours,

                                        ACCUMED INTERNATIONAL, INC.



                                        By:
                                           ------------------------
                                             Name:
                                             Title:

Enclosures:
cc: [Name of Investor]

                                    - 2-

<PAGE>

                                                                      EXHIBIT 2
                                                                             TO
                                                                   REGISTRATION
                                                                         RIGHTS
                                                                      AGREEMENT

                                     [Date]


[Name and address
of transfer agent]


                        RE:  ACCUMED INTERNATIONAL, INC.

Ladies and Gentlemen:
      We are counsel to ACCUMED INTERNATIONAL, INC., a Delaware corporation 
(the "COMPANY"), and we understand that [Name of Investor] (the "HOLDER") has 
purchased from the Company shares of the Company's Common Stock, par value 
$.01 (the "COMMON STOCK"). The Common Stock was purchased by the Holder 
pursuant to a Securities Purchase Agreement, dated as of May 31, 1996, 
between the Holder and the Company (the "AGREEMENT"). Pursuant to a 
Registration Rights Agreement, dated as of May 31, 1996, between the Company 
and the Holder (the "REGISTRATION RIGHTS AGREEMENT"), the Company agreed with 
the Holder, among other things, to register the Registrable Securities (as 
that term is defined in the Registration Rights Agreement) under the 
Securities Act of 1933, as amended (the "SECURITIES ACT"), upon the terms 
provided in the Registration Rights Agreement. In connection with the 
Company's obligations under the Registration Rights Agreement, on _____, 
1996, the Company filed a Registration Statement on Form S-__ (File No. 
33-______)(the "REGISTRATION STATEMENT") with the Securities and Exchange 
Commission (the "SEC") relating to the Registrable Securities, which names 
the Holder as a selling stockholder thereunder.

     [Other introductory and scope of examination language to be inserted]

     Based on the foregoing, we are of the opinion that the Registrable
Securities have been registered under the Securities Act.


<PAGE>


                  [Other appropriate language to be included.]

                                             Very truly yours,



cc:  [Name of investor]

<PAGE>
                                                                    EXHIBIT 23.2
 
                       CONSENT OF INDEPENDENT ACCOUNTANTS
 
   
    We  consent  to  the  incorporation  by  reference  in  this  Post-Effective
Amendment No.  1  to  the Registration  Statement  on  Form S-3  (SEC  File  No.
333-07681)  to be filed with the Securities  and Exchange Commission on or about
July 24, 1996, by  AccuMed International, Inc. and  subsidiaries of our  report,
which  includes an explanatory paragraph related  to substantial doubt about the
ability of AccuMed,  Inc. to continue  as a going  concern, dated September  29,
1995,  on our  audit of the  balance sheet of  AccuMed, Inc. as  of December 31,
1994, and for the period from February 7, 1994 (inception) through December  31,
1994,  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 24, 1996
    
<PAGE>
                                                                    EXHIBIT 23.2
                                                                     (CONTINUED)
 
                       CONSENT OF INDEPENDENT ACCOUNTANTS
 
   
    We  consent  to  the  incorporation  by  reference  in  this  Post-Effective
Amendment No. 1 to the Registration  Statement on Form S-3 (Reg. No.  333-07681)
to  be filed with  the Securities and  Exchange Commission on  or about July 24,
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 24, 1996
    
<PAGE>
                                                                    EXHIBIT 23.2
                                                                     (CONTINUED)
 
                       CONSENT OF INDEPENDENT ACCOUNTANTS
 
   
    We  consent  to  the  incorporation  by  reference  in  this  Post-Effective
Amendment  No.  1  to the  Registration  Statement  on Form  S-3  (SEC  File No.
333-07681) to be filed with the  Securities and Exchange Commission on or  about
July  24, 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 24, 1996
    

<PAGE>
                                                                    EXHIBIT 23.3
 
                       CONSENT OF INDEPENDENT ACCOUNTANTS
 
   
    We  consent  to  the  incorporation  by  reference  in  this  Post-Effective
Amendment No. 1 to the Registration  Statement on Form S-3 (Reg. No.  333-07681)
to  be filed with  the Securities and  Exchange Commission on  or about July 22,
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 19, 1996
    


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