NORTH AMERICAN VACCINE INC
10-Q, 1996-11-14
BIOLOGICAL PRODUCTS, (NO DIAGNOSTIC SUBSTANCES)
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                                  UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION
                              WASHINGTON, DC 20549

                                    FORM 10-Q

(MARK ONE)

[X]      QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE
         SECURITIES EXCHANGE ACT OF 1934

                FOR THE QUARTERLY PERIOD ENDED SEPTEMBER 30, 1996

                                       OR

[  ]     TRANSITION REPORT PURSUANT TO SECTION 13 or 15(d) OF THE
         SECURITIES EXCHANGE ACT OF 1934

          For the transition period from ____________ to ____________

                         COMMISSION FILE NUMBER 1-10451

                          NORTH AMERICAN VACCINE, INC.
             (Exact name of registrant as specified in its charter)

           CANADA                                             98-0121241
(State or other jurisdiction of                             (IRS Employer
 incorporation or organization)                           Identification No.)

12103 INDIAN CREEK COURT, BELTSVILLE, MARYLAND                     20705
- ----------------------------------------------                  ----------
(Address of principal executive offices)                        (Zip Code)

Registrant's telephone number, including area code:  (301) 470-6100
- --------------------------------------------------------------------------------
(Former  name,  former  address and former  fiscal year,  if changed  since last
report)

Indicate by check mark whether the registrant (1) has filed all reports required
to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during
the  preceding 12 months (or for such  shorter  period that the  registrant  was
required  to file  such  reports),  and  (2) has  been  subject  to such  filing
requirements for the past 90 days. Yes [X] No [ ]

Indicate the number of shares outstanding of each of the registrant's classes of
common stock, as of the latest practicable date.

COMMON STOCK,  NO PAR VALUE,  OUTSTANDING  AS OF NOVEMBER 11, 1996 -- 31,258,833
SHARES


<PAGE>



                                TABLE OF CONTENTS




                                                                 PAGE NUMBER
PART I.  FINANCIAL INFORMATION

Item 1.     Financial Statements......................................   3

            Consolidated Balance Sheets...............................   4

            Consolidated Statements of Operations.....................   5

            Consolidated Statement of Shareholders' Equity............   6

            Consolidated Statements of Cash Flows.....................   7

            Notes to Condensed Consolidated Financial Statements......   9

Item 2.     Management's Discussion and Analysis of
            Financial Condition and Results of Operations.............  12


PART II.    OTHER INFORMATION

Item 5.     Other Information.........................................  20

Item 6.     Exhibits and Reports on Form 8-K..........................  21


SIGNATURES............................................................  22




                                     - 2 -
<PAGE>







                          PART I. FINANCIAL INFORMATION


ITEM 1.   FINANCIAL STATEMENTS

The following unaudited,  condensed  consolidated  financial statements of North
American  Vaccine,  Inc. and Subsidiaries  (the "Company") have been prepared in
accordance with the instructions to Form 10-Q and,  therefore,  omit or condense
certain  footnotes  and  other   information   normally  included  in  financial
statements prepared in accordance with generally accepted accounting principles.
This report should be read in  conjunction  with the Company's  Annual Report on
Form 10-K  filed  for the year  ended  December  31,  1995.  In the  opinion  of
management,  all adjustments  (consisting only of normal recurring  adjustments)
necessary for a fair  presentation of the financial  information for the interim
period  reported have been made.  Results of  operations  for the three and nine
months ended  September  30, 1996,  will not  necessarily  be  indicative of the
results for the entire fiscal year ending December 31, 1996.










                                     - 3 -
<PAGE>

<TABLE>
<CAPTION>


NORTH AMERICAN VACCINE, INC. AND SUBSIDIARIES
CONSOLIDATED BALANCE SHEETS
(IN THOUSANDS, EXCEPT SHARE AND PER SHARE DATA)
                                                                                     SEPTEMBER 30,        DECEMBER 31,
                                                                                         1996                 1995
                                                                                   ------------------   -----------------
                                                                                      (UNAUDITED)

<S>                                                                                          <C>                 <C>    
ASSETS
CURRENT ASSETS:
  Cash and cash equivalents                                                               $   81,881         $    10,443
  Accounts receivable                                                                              -               2,000
  Prepaid expenses and other current assets                                                    2,009               1,067
                                                                                          -----------        ------------
          Total current assets                                                                83,890              13,510

Property, plant and equipment, net                                                            17,769              18,121
Investment in affiliate, at market                                                             2,031               9,065
Other assets                                                                                     529                 553
Deferred financing costs, net                                                                  3,309                   -
                                                                                          -----------        ------------
     Total assets                                                                         $  107,528         $    41,249
                                                                                          ===========        ============

LIABILITIES AND SHAREHOLDERS' EQUITY
CURRENT LIABILITIES:
  Accounts payable                                                                        $    1,734         $     3,550
  Other current liabilities                                                                    6,797               4,296
                                                                                          -----------        ------------
         Total current liabilities                                                             8,531               7,846

Deferred rent credit, net of current portion                                                     137                 205

6.50% Convertible subordinated notes, due May 1, 2003                                         86,250                   -
                                                                                          -----------        ------------
     Total liabilities                                                                        94,918               8,051

SHAREHOLDERS' EQUITY:
 Preferred  stock,  no  par  value;   unlimited  shares  authorized-  Series  A,
     convertible; issued and outstanding 2,000,000 shares; entitled to Can $2.50
     per share in liquidation                                                                  6,538               6,538
                             
 Common stock, no par value;  unlimited  shares  authorized;  issued  30,906,547
    shares at September 30, 1996 and 30,186,711 shares at December 31, 1995                   63,239              58,474
                                                                           
 Unrealized investment holding gain                                                            1,403               7,466
                                    
 Accumulated deficit                                                                         (58,570)            (39,280)
                                                                                          -----------        ------------
         Total shareholders' equity                                                           12,610              33,198
                                                                                          -----------        ------------

     Total liabilities and shareholders' equity                                           $  107,528         $    41,249
                                                                                          ===========        ============

The accompanying notes are an integral part of these condensed consolidated financial statements.

</TABLE>

                                     - 4 -
<PAGE>

<TABLE>
<CAPTION>

NORTH AMERICAN VACCINE, INC. AND SUBSIDIARIES
 CONSOLIDATED STATEMENTS OF OPERATIONS
 (IN THOUSANDS, EXCEPT PER SHARE DATA)
 (UNAUDITED)

                                                             THREE MONTHS                               NINE MONTHS
                                                                 ENDED                                     ENDED
                                                             SEPTEMBER 30,                             SEPTEMBER 30,
                                                     1996                 1995                 1996                  1995
                                                ----------------   --------------------  ------------------   --------------------

<S>                                                   <C>                    <C>                <C>                   <C> 
 SALES                                                $       -              $       -          $      727            $         -
                                                ----------------   --------------------  ------------------   --------------------

 OPERATING EXPENSES:
     Production                                           4,058                  1,376              10,754                  3,578
     Research and development                             2,560                  3,269               8,126                  7,311
     General and administrative                           1,599                  1,489               4,826                  4,096
                                                ----------------   --------------------  ------------------   --------------------
           Total  operating expenses                      8,217                  6,134              23,706                 14,985
                                                ----------------   --------------------  ------------------   --------------------

 OPERATING LOSS                                          (8,217)                (6,134)            (22,979)               (14,985)

 OTHER INCOME:
     Gain on sale of investment in affiliate                  -                      -               4,228                 10,929
     Interest and dividend income                         1,075                    209               1,917                    654
     Interest expense                                    (1,531)                     -              (2,456)                     -
                                                ----------------   --------------------  ------------------   --------------------
 NET LOSS                                               ($8,673)               ($5,925)           ($19,290)               ($3,402)
                                                ================   ====================  ==================   ====================

 NET LOSS PER SHARE                                      ($0.28)                ($0.20)             ($0.63)                ($0.11)

 WEIGHTED-AVERAGE NUMBER OF COMMON           
     SHARES OUTSTANDING                                  30,769                 29,811              30,600                 29,625

The accompanying notes are an integral part of these condensed consolidated financial statements.

</TABLE>


                                     - 5 -
<PAGE>


<TABLE>
<CAPTION>

NORTH AMERICAN VACCINE, INC. AND SUBSIDIARIES
CONSOLIDATED STATEMENT OF SHAREHOLDERS' EQUITY
(IN THOUSANDS)
(UNAUDITED)


                                                                                                     
                                            SERIES A                                    UNREALIZED                            
                                          CONVERTIBLE                                    INVEST-                         TOTAL 
                                        PREFERRED STOCK            COMMON STOCK            MENTG         ACCUM-          SHARE- 
                                     -----------------------  -----------------------    HOLDING         ULATED         HOLDERS'
                                      SHARES       AMOUNT      SHARES       AMOUNT        GAINS          DEFICIT         EQUITY
                                     ----------  -----------  ---------   -----------  -------------  --------------  -------------

<S>                                      <C>         <C>        <C>          <C>             <C>          <C>              <C>
Balance, December 31, 1995               2,000       $6,538     30,187       $58,474         $7,466        ($39,280)       $33,198

Exercises of stock options                   -            -        711         4,634              -               -          4,634
Shares issued under
  401(k) plan                                -            -          9           131              -               -            131
Realized investment holding gain             -            -          -             -         (4,228)              -         (4,228)
Decrease in market value
  of investment                              -            -          -             -         (1,835)              -         (1,835)
Net loss                                     -            -          -             -              -         (19,290)       (19,290)
                                     ----------  -----------  ---------   -----------  -------------  --------------  -------------
Balance, September 30, 1996              2,000       $6,538     30,907       $63,239         $1,403        ($58,570)       $12,610
                                     ==========  ===========  =========   ===========  =============  ==============  =============

The accompanying notes are an integral part of these condensed consolidated financial statements.

</TABLE>


                                     - 6 -
<PAGE>

<TABLE>
<CAPTION>


NORTH AMERICAN VACCINE, INC. AND SUBSIDIARIES
CONSOLIDATED STATEMENTS OF CASH FLOWS
(IN THOUSANDS)
(UNAUDITED)                                                                                       NINE MONTHS
                                                                                                     ENDED
                                                                                                 SEPTEMBER 30,
                                                                                          1996                  1995
                                                                                    ------------------   -------------------

<S>                                                                                         <C>                    <C>  
CASH FLOWS FROM OPERATING ACTIVITIES:
    Net loss                                                                                ($19,290)              ($3,402)
    Adjustments to reconcile net loss to net cash used
    in operating activities:
          Gain on sale of investment in affiliate                                             (4,228)              (10,929)
          (Gain) loss on disposal of equipment                                                   (15)                   26
          Depreciation and amortization                                                        3,697                 1,022
          Amortization of deferred financing costs                                               210                     -
          Contribution of common stock to 401(k) plan                                            131                    94
          Decrease (increase) in other assets                                                     24                  (194)
          Decrease in deferred rent                                                              (60)                  (56)
          Cash flows provided by other working capital items                                   1,735                   274
                                                                                    ------------------   -------------------
              Net cash used in operating activities                                          (17,796)              (13,165)
                                                                                    ------------------   -------------------

CASH FLOWS FROM INVESTING ACTIVITIES:
    Capital expenditures                                                                      (3,345)               (8,754)
    Proceeds from sale of investment in affiliate                                              5,199                11,502
    Proceeds from sale of equipment                                                               15                     -
                                                                                    ------------------   -------------------
              Net cash provided by investing activities                                        1,869                 2,748
                                                                                    ------------------   -------------------

CASH FLOWS FROM FINANCING ACTIVITIES:
    Proceeds from issuance of convertible debt                                                86,250                     -
    Proceeds from exercises of stock options                                                   4,634                 1,210
    Deferred financing costs                                                                  (3,519)                    -
                                                                                    ------------------   -------------------
              Net cash provided by financing activities                                       87,365                 1,210
                                                                                    ------------------   -------------------

NET INCREASE (DECREASE) IN CASH AND CASH EQUIVALENTS                                          71,438                (9,207)

CASH AND CASH EQUIVALENTS, BEGINNING OF PERIOD                                                10,443                20,922
                                                                                    ------------------   -------------------
CASH AND CASH EQUIVALENTS, END OF PERIOD                                                     $81,881               $11,715
                                                                                    ==================   ===================

The accompanying notes are an integral part of these condensed consolidated financial statements.

</TABLE>

                                     - 7 -
<PAGE>

<TABLE>
<CAPTION>


NORTH AMERICAN VACCINE, INC. AND SUBSIDIARIES
CONSOLIDATED STATEMENTS OF CASH FLOWS (CONTINUED)
(IN THOUSANDS)
(UNAUDITED)
                                                                                               NINE MONTHS
                                                                                                  ENDED
                                                                                              SEPTEMBER 30,
                                                                                      1996                  1995
                                                                                ------------------   --------------------

<S>                                                                                     <C>                      <C> 
CASH FLOWS PROVIDED BY OTHER WORKING CAPITAL ITEMS:

    Decrease (increase) in:
          Accounts receivable                                                            $  2,000                $     -
          Prepaid expenses and other current assets                                          (943)                  (643)

    Increase (decrease) in:
          Accounts payable                                                                 (1,816)                  (646)
          Other current liabilities                                                         2,494                  1,563
                                                                                ------------------   --------------------
    Net cash provided by other working capital items                                     $  1,735                $   274
                                                                                ==================   ====================


</TABLE>


SUPPLEMENTAL DISCLOSURE OF CASH FLOW INFORMATION

Cash  paid  for  interest  was $9 and $0  through  September  30,  1996 and 1995
respectively.

The accompanying notes are an integral part of these condensed consolidated
financial statements.


                                     - 8 -
<PAGE>




                  NORTH AMERICAN VACCINE, INC. AND SUBSIDIARIES

              NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS
                                   (UNAUDITED)


1.  BUSINESS

The Company is engaged in the research,  development  and production of vaccines
for the prevention of infectious  diseases in children and adults.  In the first
quarter of 1996, the Swedish Medical Products Agency granted regulatory approval
of the Company's  acellular  pertussis vaccine  formulated as a DTaP vaccine for
the prevention of diphtheria,  tetanus and pertussis  (whooping  cough).  In the
third quarter of 1996, the Danish  National  Board of Health granted  regulatory
approval of a combined  DTaP-IPV (polio)  vaccine.  The Company has not received
approval  from  the  U.S.  Food and Drug  Administration  ("FDA")  or any  other
regulatory  authority  to  market  its DTaP  vaccine  or any  other  product  in
development.

2.  SIGNIFICANT ACCOUNTING POLICIES

(A) BASIS OF ACCOUNTING AND CURRENCY.  The accompanying  consolidated  financial
statements have been prepared in accordance with generally  accepted  accounting
principles  ("GAAP") in the United States and are  denominated in U.S.  dollars,
because the Company  conducts the majority of its transactions in this currency.
The application of Canadian GAAP would not result in material adjustments to the
accompanying  financial  statements  except  for the impact of the  adoption  of
Statement of Financial  Accounting  Standards  ("SFAS") No. 115, as discussed in
Note 3.  The effect of foreign currency translation has been immaterial.

(B)  PERVASIVENESS  OF ESTIMATES.  The  preparation  of financial  statements in
conformity with GAAP requires  management to make estimates and assumptions that
affect  the  reported  amounts  of assets  and  liabilities  and  disclosure  of
contingent  assets and  liabilities at the date of the financial  statements and
the  reported  amounts of revenues  and expenses  during the  reporting  period.
Actual results could differ from estimates.

(C) PRODUCT SALES. Revenue from product sales is recognized when all significant
risks of ownership  have been  transferred,  the amount of the selling  price is
fixed and  determinable,  all significant  related acts of performance have been
completed,  and no other significant  uncertainties  exist. In most cases, these
criteria are met when the goods are shipped.

(D) DEFERRED FINANCING COSTS.  Deferred financing costs represent fees and other
costs incurred in connection  with the issuance of long-term  debt.  These costs
are  amortized  over the term of the related debt using the  effective  interest
rate method.



                                     - 9 -

<PAGE>



3.  INVESTMENTS IN AFFILIATES


In accordance with SFAS No. 115, "Accounting for Certain Investments in Debt and
Equity  Securities,"  equity  securities  classified as  available-for-sale  are
reported at fair value,  with unrealized gains and losses reported in a separate
component of shareholders' equity.

At December 31,  1995,  the Company  owned  318,084  shares of IVAX  Corporation
("IVAX") common stock.  The market values of these  securities,  as shown on the
accompanying  consolidated  balance sheets,  have been  determined  based on the
closing prices for registered securities of IVAX as of those dates. In the first
quarter of 1996,  the Company  sold  193,084  shares of its  investment  in IVAX
common stock  generating  approximately  $5.2 million in proceeds and a realized
gain of $4.2 million.  The market value of the  Company's  investment in IVAX at
November 11, 1996 was approximately  $1.6 million.  These investment  securities
are volatile and therefore subject to significant fluctuations in value.

4.  OTHER CURRENT LIABILITIES

Other current liabilities consisted of the following components:

                                               September 30,    December 31,
                                                   1996            1995
                                               -------------    ------------
                                                       (in thousands)
Accrued interest payable                        $ 2,237         $     -
Payroll and fringe benefits                       1,486              736
Reserve for contract loss                           720              720
Accrued taxes                                       607              633
Accrued costs of clinical trials                    517              574
Accrued consulting and professional fees            423              767
Accrued construction costs                          316              310
Deferred rent credit                                 93               85
Other accrued liabilities                           398              471
                                               --------          -------
Total other current liabilities                 $ 6,797           $4,296
                                                =======           ======


                                     - 10 -
<PAGE>


5.  LONG-TERM DEBT

In May 1996, the Company completed an offering of 6.50% convertible subordinated
notes in the  principal  amount  of  $86.25  million  due May 1,  2003.  The net
proceeds from this offering were  approximately  $82.7 million.  Interest on the
notes is payable  semi-annually on May 1 and November 1 of each year, commencing
November 1, 1996. The notes are convertible into common shares of the Company at
any time after August 5, 1996, at the initial  conversion price of approximately
$24.86 per common share. The notes are subordinated to present and future senior
indebtedness  of the  Company and will not  restrict  the  incurrence  of future
senior or other indebtedness by the Company. The notes are redeemable,  in whole
or in part,  at the  option of the  Company  on or after May 1, 1999 at  certain
pre-established  redemption  prices  plus  accrued  interest.  Upon a change  in
control,  the Company is required to offer to purchase  all or part of the notes
then  outstanding  at a purchase  price  equal to 100% of the  principal  amount
thereof,  plus  interest.  The  repurchase  price is  payable in cash or, at the
option of the Company, in common shares.

6.   SUBSEQUENT EVENTS

In the fourth quarter,  the Company and Abbott Laboratories  ("Abbott") signed a
definitive  agreement  under which Abbott would market  CERTIVA(TRADEMARK),  the
Company's DTaP vaccine,  when approved by the FDA. The marketing  agreement also
will allow Abbott to market the Company's  DTaP-HIB,  DTaP-IPV and  DTaP-IPV-HIB
combination vaccines which are under development.

Abbott  will  market  CERTIVA(TRADEMARK)  and  combination  vaccines  to private
physicians  and managed care markets in the United  States for  immunization  of
infants  and  children.  The  Company  will  market  CERTIVA(TRADEMARK)  and the
combination vaccines to government  purchasers,  including state governments and
the Centers for Disease Control and Prevention.

On execution of the  agreement,  the Company  received $13 million of which $6.3
million  represented  payment for 350,000 shares of the Company's  common stock,
and the balance represented a marketing fee and a clinical  development payment.
The Company and Abbott  will  collaborate  in the  clinical  development  of the
combination   vaccines  and  Abbott  will  provide  the  Company  with  clinical
development  funding.  The Company will receive  payments  upon  achievement  of
prescribed  milestones.  The agreement  provides for total payments of up to $42
million  by  Abbott.   The  first   milestone   relates  to  FDA   approval   of
CERTIVA(TRADEMARK) provided certain other conditions are satisfied. In addition,
the Company will receive revenues from Abbott as it purchases CERTIVA(TRADEMARK)
and the combination vaccine products for resale to the private pediatric market.

In the fourth quarter,  the Company acquired a 35,000 square foot  manufacturing
facility in  Beltsville,  Maryland.  The  acquisition  included the purchase and
lease of equipment  and  leasehold  improvements  and the  assumption  of a real
estate lease. The total acquisition cost was approximately $24.9 million,  which
included  a cash  payment  of $17.2  million.  The  balance  of $7.7  million is
represented by an equipment  lease  obligation  which expires in 2000. The lease
will be accounted for as a capital lease for financial reporting purposes,  with
monthly payments of approximately $179,000. In addition, the Company has assumed
the real estate lease  underlying the facility,  which is scheduled to expire in
2000, but may be extended  through 2010. Under the terms of the equipment lease,
the Company has a buyout option at the end of the third year for a predetermined
amount,  and an option at the end of the fourth  year at the greater of the fair
market value of the  equipment or a  predetermined  amount.  Under the equipment
lease  agreement  there are  financial  covenants  that  obligate the Company to
maintain  certain minimum cash and investment  balances,  a minimum tangible net
worth and certain other financial ratios.  The Company would be required to post
an irrevocable  letter of credit for  predetermined  amounts at such time as the
Company is not in compliance with any of these financial covenants.

                                     - 11 -
<PAGE>



ITEM 2.       MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL 
              CONDITION AND RESULTS OF OPERATIONS
              --------------------------------------------------

BACKGROUND

     The  Company is engaged in the  research,  development  and  production  of
vaccines for the prevention of infectious diseases in children and adults.

     In 1995, the Company recognized development revenues pursuant to agreements
with   Pasteur-Merieux   Serums  et  Vaccins,   a  wholly-owned   subsidiary  of
Rhone-Poulenc,  which operates in North America through its subsidiary Connaught
Laboratories ("Pasteur Merieux-Connaught"),  under which the Company and Pasteur
Merieux-Connaught  will jointly  develop the Company's  meningococcus B vaccine.
Additional  funding may be provided to the Company by Pasteur  Merieux-Connaught
under the terms of the clinical development agreement.  See "Outlook;  Liquidity
and Capital Resources," below.

     In  February  1996,  the  Swedish  Ministry  of Health  granted  regulatory
approval to market the Company's  acellular  pertussis  vaccine  formulated as a
combined DTaP vaccine for the prevention of diphtheria,  tetanus,  and pertussis
(whooping cough). This marketing authorization was the first regulatory approval
for  any of the  Company's  products.  Under a  supply  agreement,  the  Company
manufactures the acellular component of the vaccine,  and Statens  Seruminstitut
("SSI")  manufactures the diphtheria and tetanus  components and will market and
distribute the DTaP vaccine in Sweden,  as well as, upon receipt of any required
regulatory approvals,  other countries comprising SSI's territory.  In September
1996,  the Danish  National  Board of Health  granted  regulatory  approval of a
combined  DTaP-IPV (polio) vaccine for all primary and booster doses for infants
and children in Denmark. This combination vaccine,  which includes the Company's
acellular pertussis vaccine,  was developed jointly by SSI and the Company.  The
Company filed a product license  application  with the FDA in September 1995 for
approval to market  CERTIVA(TRADEMARK),  the Company's DTaP vaccine.  On October
29, 1996,  the FDA's  Advisory  Committee  on Vaccines  and Related  Biologicals
reviewed the clinical  data on  CERTIVA(TRADEMARK),  which data was submitted in
the application. See "Outlook; Liquidity and Capital Resources," below.

     The Company had 196 and 155  full-time  employees as of September  30, 1996
and 1995, respectively.

RESULTS OF OPERATIONS

THREE MONTHS ENDED SEPTEMBER 30, 1996 AND 1995

     Production  expenses  were $4.1 million in 1996 compared to $1.4 million in
1995.   The  increase  in  these  expenses  in  1996  is  due  to  increases  in
depreciation,  materials,  and labor,  as the Company  prepares  for  regulatory
approval of  CERTIVA(TRADEMARK) in the United States. The increase in labor cost
is  attributable  primarily  to an  increase  in the  number  of  employees.  In
addition,  facility  costs  increased  in 1996  over  1995 due to the  Company's
placing in service its expanded  production  facility  and its adjacent  support
facility.

                                     - 12 -
<PAGE>


     Research and  development  expenses  decreased to $2.6 million in 1996 from
$3.3 million in 1995. The decrease is  attributable  primarily to lower clinical
testing and related expenses.

     General and  administrative  expenses were $1.6 million in 1996 as compared
to $1.5 million in 1995. The increase is primarily due to higher labor costs and
supplies  due to  increased  number  of  employees,  offset  in part by  reduced
marketing and consulting fees.

     Interest  and  dividend  income  increased  to $1.1  million  in 1996  from
$209,000 in 1995.  This  increase is due  primarily to higher cash balances as a
result of the placement of $86.25 million convertible  subordinated notes in May
1996. See "Outlook; Liquidity and Capital Resources" below.

     Interest  expense  in 1996  was $1.5  million  due to the  issuance  of the
convertible subordinated notes.

     The factors cited above resulted in a net loss of $8.7 million or $0.28 per
share in 1996 as  compared  to a net loss of $5.9  million or $0.20 per share in
1995.  The  weighted-average  number  of common  and  common  equivalent  shares
outstanding  was 30.8 million for 1996  compared to 29.8  million for 1995.  The
increase  in the  number  of  weighted-average  shares  outstanding  for 1996 as
compared to 1995 is attributable primarily to the exercises of stock options.

NINE MONTHS ENDED SEPTEMBER 30, 1996 AND 1995

     In 1996, the Company  recognized  $727,000 of revenue from product sales of
its acellular pertussis vaccine.

     Production  expenses were $10.8 million in 1996 compared to $3.6 million in
1995.   The  increase  in  these  expenses  in  1996  is  due  to  increases  in
depreciation,  materials,  and labor,  as the  Company  produces  the  acellular
pertussis vaccine for European distribution and prepares for regulatory approval
of  CERTIVA(TRADEMARK)  in the  United  States.  The  increase  in labor cost is
attributable  primarily  to an increase  in number of  employees.  In  addition,
facility  costs  increased  in 1996 over 1995 due to the  Company's  placing  in
service its expanded production facility and its adjacent support facility.

     Research and  development  expenses  increased to $8.1 million in 1996 from
$7.3  million in 1995.  The total  year to date  increase  represents  primarily
clinical  testing and related  expenses as the Company expanded its clinical and
regulatory affairs operations.

     General and  administrative  expenses were $4.8 million in 1996 as compared
to $4.1 million in 1995.  The increase is primarily  due to a greater  number of
employees and related use of supplies.

     In 1996 the Company sold 193,084  shares of its  investment  in  affiliate,
which generated  proceeds of  approximately  $5.2 million and a realized gain of
$4.2 million or $0.14 per share. In 1995, the Company sold 695,936 shares of its
investment in an affiliate,  which  generated  proceeds of  approximately  $11.5
million, and a realized gain of $10.9 million or $0.37 per share.

                                     - 13 -
<PAGE>


     Interest  and  dividend  income  increased  to $1.9  million  in 1996  from
$654,000 in 1995.  This  increase is due  primarily to higher cash balances as a
result of the placement of $86.25 million convertible  subordinated notes in May
1996. See "Outlook; Liquidity and Capital Resources" below.

     Interest  expense  in 1996  was $2.5  million  due to the  issuance  of the
convertible subordinated notes.

     The factors  cited above  resulted in a net loss of $19.3  million or $0.63
per share in 1996 as compared to net loss of $3.4  million or $0.11 per share in
1995. Without the gains on the sales of investment  securities in 1996 and 1995,
the net  losses  per share for 1996 and 1995 would have been $0.77 and $0.48 per
share, respectively. The weighted-average number of common and common equivalent
shares  outstanding was 30.6 million for 1996 compared to 29.6 million for 1995.
The increase in the number of  weighted-average  shares  outstanding for 1996 as
compared to 1995 was attributable primarily to the exercises of stock options.

OUTLOOK; LIQUIDITY AND CAPITAL RESOURCES

     THE FOLLOWING  PARAGRAPHS IN THIS FORM 10-Q CONTAIN CERTAIN FORWARD LOOKING
STATEMENTS,  WHICH  ARE MADE  PURSUANT  TO THE  SAFE  HARBOR  PROVISIONS  OF THE
SECURITIES  LITIGATION  REFORM ACT OF 1995.  THESE  FORWARD  LOOKING  STATEMENTS
INCLUDE,  WITHOUT  LIMITATION,  THOSE  REGARDING THE  PROSPECTS  FOR  REGULATORY
APPROVAL  AND THE  NEED FOR  FURTHER  CLINICAL  EVALUATION,  THE  PROSPECTS  FOR
MARKETING AND  DISTRIBUTION OF VACCINE  PRODUCTS,  ASSESSMENTS OF REGULATORY AND
ADVISORY  COMMITTEE  REVIEWS OF THE COMPANY'S  AND  COMPETITORS'  PRODUCTS,  THE
PROSPECTS  FOR  AND  FACTORS   AFFECTING  FUTURE  REVENUES  AND   PROFITABILITY,
LIKELIHOOD  OF  ADDITIONAL   FUNDING  UNDER   DISTRIBUTION   AND   COLLABORATION
AGREEMENTS,  CASH  REQUIREMENTS  FOR FUTURE  OPERATIONS,  AND PROJECTED  CAPITAL
EXPENDITURES.  READERS ARE CAUTIONED  THAT FORWARD  LOOKING  STATEMENTS  INVOLVE
RISKS,  UNCERTAINTIES  AND FACTORS WHICH MAY AFFECT THE  COMPANY'S  BUSINESS AND
PROSPECTS,  INCLUDING  WITHOUT  LIMITATION  THOSE DESCRIBED BELOW AS WELL AS THE
RISKS ASSOCIATED WITH: OBTAINING REGULATORY APPROVAL OF PRODUCTS BY THE FDA; THE
PRODUCTION OF VACCINES;  THE NATURE OF  COMPETITION;  EFFECTIVE  MARKETING;  AND
UNCERTAINTIES  RELATING TO CLINICAL  TRIALS,  ALL AS DISCUSSED IN THE  COMPANY'S
PREVIOUS FILINGS WITH THE U.S. SECURITIES AND EXCHANGE COMMISSION.

     In February 1996, the Swedish Medical  Products  Agency granted  regulatory
approval to market the Company's  acellular  pertussis  vaccine  formulated as a
combined DTaP vaccine for all primary and booster doses.  In September 1996, the
Danish  National  Board of Health  granted  regulatory  approval  of a  combined
DTaP-IPV  (polio)  vaccine for all  primary  and  booster  doses for infants and
children in Denmark.  This  combination  vaccine,  which  includes the Company's
acellular pertussis vaccine,  was developed jointly by SSI and the Company.  SSI
markets the DTaP vaccine in Sweden, and the DTaP-IPV vaccine in Denmark, and has
indicated that it will file additional  applications for the acellular pertussis
vaccine,  both alone and in combination with other antigens,  in other countries
within its  territory.  There can be no assurance  given that SSI will file such
additional applications or that, if filed, such applications will be approved by
the appropriate regulatory authorities.

     Following  the  regulatory   approval  described  above,  the  Company  has
recognized  $727,000 in revenues from sale of its acellular  pertussis  vaccine.
Additional  revenues  from such  product  sales are  dependent  upon  successful
commercialization  of the DTaP  vaccine  in Sweden and the  DTaP-IPV  vaccine in
Denmark and  additional  product  approvals of acellular  pertussis  products in
other  countries.  The Company does not control the marketing  and  distribution
efforts of SSI in its  territory  and,  therefore,  the  Company's  revenues for
product sales in that territory are dependent upon  effective  sales,  marketing
and  distribution  efforts of SSI.  There are no  assurances  if or when further
product approvals will be obtained,  or that the DTaP and DTaP-IPV vaccines will
be marketed and distributed effectively.


                                     - 14 -
<PAGE>



     On October 29, 1996, the Food and Drug  Administration's  ("FDA")  Vaccines
and  Related  Biological  Products  Advisory  Committee  ("Advisory  Committee")
reviewed  CERTIVA(TRADEMARK),  the Company's DTaP vaccine.  Representatives from
the FDA, the Company and the clinical investigators  presented the clinical data
from several studies of CERTIVA(TRADEMARK).  These studies involved over 106,000
doses  administered  to more than 47,000  infants and  children  with no serious
adverse events or deaths related to the  administration of the vaccine as judged
by the clinical  investigators.  The incidence of high fever,  redness, pain and
swelling  were all  significantly  lower  after use of the  acellular  pertussis
vaccine than after immunization with the whole-cell  pertussis vaccine.  In data
presented to the Advisory Committee by the co-principal clinical investigator in
Sweden,  efficacy of the vaccine in  preventing  pertussis  disease  varied from
71-86% depending on the definition of disease, the method of calculation and the
clinical study involved.

     Following the presentation of the data, the FDA requested that the Advisory
Committee comment on specific questions presented at the meeting.  The following
summarizes  the  Company's  assessment  of the views  expressed  by the  various
members of the  Advisory  Committee  at the  meeting.  The views of the Advisory
Committee are not binding on the FDA, and there are no  assurances  that the FDA
will agree with the Company's  assessment of or accept the views of the Advisory
Committee.

     The Advisory Committee concluded that the vaccine is safe and effective for
administration  in infants at 2, 4, 6 and 15-18 months of age. In addition,  the
Advisory  Committee  concluded  that  CERTIVA(TRADEMARK)  could be  administered
concurrently with the  administration of polio,  HAEMOPHILUS  INFLUENZAE type b,
hepatitis B and  measles-mumps-rubella  vaccines,  which are all recommended for
immunization  during the first two years of life.  In response  to the  question
presented  by the FDA on whether  the data  supports  use of  CERTIVA(TRADEMARK)
following  primary  immunization  using the whole-cell  pertussis  vaccine,  the
Advisory  Committee  raised  no  concerns  regarding  the  adequacy  of the data
regarding the use of  CERTIVA(TRADEMARK)  for the booster dose given to children
at 4-6 years of age.  The  Advisory  Committee  commented on the adequacy of the
data  regarding  the use of  CERTIVA(TRADEMARK)  for the  booster  dose given to
toddlers  at 15-18  months  of age  following  primary  immunization  using  the
whole-cell  pertussis  vaccine.  In response to those comments,  the Company may
supplement the data presented at the Advisory  Committee meeting with additional
data from  ongoing  studies or this matter may be  addressed  in  post-marketing
studies.  Although  the  Company  has not met with the FDA on the  comments  and
conclusions  of the  Advisory  Committee,  the Company does not believe that any
additional  clinical  studies  will be required in  connection  with its product
license application, other than standard post-licensure testing and surveillance
for continued monitoring of the vaccine.

     Approval of  CERTIVA(TRADEMARK)  for commercial  introduction requires that
the FDA  issue a  license  for the  product  and a  license  for the  production
facilities. Production of vaccines is a highly complex, biological process which
involves many steps commencing from seed culture through final  production.  The
production  process  could  fail  at any  point  resulting  in the  failure  and
inability  to meet  production  requirements.  From  time to time,  the  Company
experiences disruptions and production failures and there are no assurances that
the steps taken by the Company to address  such  failures  will be  effective or
that such  failures  will not  continue  in the future or affect  the  Company's

                                     - 15 -
<PAGE>



ability to obtain  regulatory  approval  for its  products or the timing of such
approval.  Moreover,  there are no  assurances  that the Company will be able to
successfully  establish  and  maintain  consistent  manufacture  and  continuous
commercial  production  of its  vaccine  products  or that it will be capable of
producing  a  competitively  priced  product  for  commercial  sale.  If the FDA
approves  CERTIVA(TRADEMARK)  and if the product is successfully launched in the
United  States,  revenues from  operations  and the prospects for  profitability
could  significantly  increase.  There are no assurances when or if FDA approval
will be obtained,  or if obtained  the Company  will be effective in  producing,
marketing and  distributing  the product.  The principal  factors  affecting the
timetable and approval of CERTIVA(TRADEMARK)  are believed to be the adequacy of
the clinical trials conducted on the product,  the adequacy of the clinical data
submitted for the product,  and the adequacy of the  manufacturing  facility and
operations for the product, among other things. The factors affecting successful
commercial  launch of  CERTIVA(TRADEMARK)  in the United States  include,  among
others:  establishing  the  identity  and  reputation  for the  Company  and its
products;  creating an awareness among  pediatricians of the safety and efficacy
of  CERTIVA(TRADEMARK);  distinguishing  the Company's  product from that of its
competitors;  establishing the Company as an effective and reliable  supplier of
vaccines;  and establishing  effective  distribution  channels.  There can be no
assurance that the Company will produce a commercially  viable product,  produce
product consistently and in quantities sufficient to compete in the marketplace,
attain sufficient market share,  establish effective  distribution  channels, or
distinguish  its vaccine  product  from that of its  competitors.  Additionally,
while the Advisory Committee on Immunization  Practices ("ACIP") has recommended
the  preferred use of DTaP vaccine for all five doses,  the American  Academy of
Pediatrics  has not  issued a  similar  recommendation,  which  may  affect  the
successful  commercialization  of DTaP vaccines for preferred use in infants and
children.  There can be no assurance such a recommendation  will be issued.  The
foregoing is only a partial  description of the factors  affecting the Company's
business  prospects and risk factors affecting future  operations.  Reference is
made  to the  Company's  previous  filings  with  the  Securities  and  Exchange
Commission  for a more  complete  description  of the  risks  and  uncertainties
affecting the Company and its business.

     In July 1996,  one company  announced that its DTaP vaccine was approved by
the FDA for  administration  at two,  four,  six and 15-18  months of age.  This
product had  previously  been  approved by the FDA for  administration  at 15-18
months of age and  immediately  prior to grade school entry.  In addition,  that
company  has  announced  that the FDA has  licensed a vaccine  that  combines by
reconstitution   that   company's   HIB  vaccine   with  its  DTaP  vaccine  for
administration at 15-18 months of age and that it continues to seek FDA approval
for administration at two, four and six months of age. Two other  manufacturers'
DTaP vaccine products recently have been reviewed by the Advisory  Committee for
administration  in infants and  children.  One of those  products  is  currently
approved by the FDA for  administration  at 15-18 months of age and  immediately
prior to grade school entry. In addition, several competitors' DTaP vaccines and
certain  combination  vaccines have been licensed for sale outside of the United
States. The Company does not believe that these events will adversely affect the
regulatory  review  process  for  CERTIVA(TRADEMARK),  although  there can be no
assurances in this regard. The Company also is unable to predict the impact that
FDA approvals or Advisory  Committee reviews of competing  products will have on
the marketing and  distribution of  CERTIVA(TRADEMARK)  should it be approved by
the FDA.

     In the fourth  quarter,  the  Company  and Abbott  Laboratories  ("Abbott")
signed a definitive agreement under which Abbott would market CERTIVA(TRADEMARK)
when  approved by the FDA.  The  marketing  agreement  also will allow Abbott to
market the Company's DTaP-HIB,  DTaP-IPV and DTaP-IPV-HIB  combination  vaccines
which are under development.

     Abbott will market  CERTIVA(TRADEMARK)  and combination vaccines to private
physicians  and managed care markets in the United  States for  immunization  of
infants  and  children.  The  Company  will  market  CERTIVA(TRADEMARK)  and the


                                     - 16 -
<PAGE>


combination vaccines to government  purchasers,  including state governments and
the Centers for Disease Control and Prevention.

     On execution of the  agreement,  the Company  received $13 million of which
$6.3 million  represented  payment for 350,000  shares of the  Company's  common
stock,  and the balance  represented a marketing fee and a clinical  development
payment.  The Company and Abbott will collaborate in the clinical development of
the  combination  vaccines  and Abbott will  provide the Company  with  clinical
development  funding.  The Company will receive  payments  upon  achievement  of
prescribed  milestones.  The agreement  provides for total payments of up to $42
million  by  Abbott.   The  first   milestone   relates  to  FDA   approval   of
CERTIVA(TRADEMARK) provided certain other conditions are satisfied. In addition,
the Company will receive revenues from Abbott as it purchases CERTIVA(TRADEMARK)
and the combination vaccine products for resale to the private pediatric market.
In  addition to the  agreement  with  Abbott,  the  Company is  considering  the
advisability  of executing  other  distribution  agreements for certain  markets
throughout the world. The Company also intends to collaborate in the development
of  selected  vaccine  products  and may  enter  into  additional  collaborative
development  agreements  similar in nature to that which was signed with Pasteur
Merieux-Connaught, as described below. These agreements, if executed, would only
impact  the  Company's  operating  results  in  future  periods.  There  are  no
assurances  that  the  Company  will  successfully  negotiate  and sign any such
agreements  or that,  if  executed,  the  financial  terms for any  distribution
agreement or further collaboration agreement will be significant.

     In December 1995, the Company signed a clinical  development  agreement and
license agreement with Pasteur Merieux-Connaught, under which the parties agreed
to jointly develop the Company's new conjugate  vaccine against  meningococcus B
infection  for both  adults  and  pediatric  indications.  In 1995  the  Company
received $3 million from Pasteur Merieux-Connaught, and further fees and funding
would  be  made  upon  achievement  of  development,   clinical  and  regulatory
milestones.  Total fees and  payments to the  Company  upon  achievement  of all
clinical and regulatory  milestones would amount to $52 million.  Achievement of
the first  milestone,  which is the  satisfactory  completion of a  pre-clinical
study and ratification of the license agreement by the National Research Council
of Canada, a Canadian federal government agency ("NRC"), would result in further
payments  from  Pasteur   Merieux-Connaught.   Additional   revenues  from  this
collaboration  will depend upon achievement of the development  milestones.  The
time it may take to achieve these milestones cannot be predicted  accurately and
no assurances can be given that any or all of these  milestones will be achieved
during 1996 or at all.  Unless the license  agreement is ratified by the NRC and
the pre-clinical agreement is successfully completed, either party may terminate
the  agreement.  In addition,  Pasteur  Merieux-Connaught  may  terminate  these
agreements in its sole discretion at any time after December 22, 1996.

     The Company spent $6.8 million for  operations in the third quarter of 1996
and $20.5  million for the nine months  ending  September 30, 1996. At September
30,  1996,  the Company had cash and cash  equivalents  of  approximately  $81.9
million  and  investment  securities  in an  affiliate  with a  market  value of
approximately  $2.0  million.  The  investment  securities  consisted of 125,000
shares  of IVAX  common  stock.  The  fair  market  value  of  these  investment
securities as of November 11, 1996 was $1.6 million. These investment securities
are volatile and therefore subject to significant fluctuations in value.

     In  the  fourth  quarter,   the  Company  acquired  a  35,000  square  foot
manufacturing  facility in Beltsville, Maryland. The  acquisition  included  the


                                     - 17 -

<PAGE>



purchase and lease of equipment and leasehold improvements and the assumption of
a real estate lease. The total acquisition cost was approximately $24.9 million,
which included a cash payment of $17.2  million.  The balance of $7.7 million is
represented by an equipment  lease  obligation  which expires in 2000. The lease
will be accounted for as a capital lease for financial reporting purposes,  with
monthly payments of approximately $179,000. In addition, the Company has assumed
the real estate lease  underlying the facility,  which is scheduled to expire in
2000, but may be extended  through 2010. Under the terms of the equipment lease,
the Company has a buyout option at the end of the third year for a predetermined
amount,  and an option at the end of the fourth  year at the greater of the fair
market value of the  equipment or a  predetermined  amount.  Under the equipment
lease  agreement  there are  financial  covenants  that  obligate the Company to
maintain  certain minimum cash and investment  balances,  a minimum tangible net
worth and certain other financial ratios.  The Company would be required to post
an irrevocable  letter of credit for  predetermined  amounts at such time as the
Company is not in compliance with any of these financial covenants.

     Total  capital  expenditures  for the first  nine  months of 1996 were $3.3
million,  primarily for production and computer related  equipment.  Total other
capital   expenditures  for  the  last  quarter  of  1996  are  expected  to  be
approximately  $1  million,   exclusive  of  expenditures  associated  with  the
acquisition  and any  modifications  of the  additional  manufacturing  facility
described above. The projected capital expenditures could fluctuate based upon a
number of factors  including  unanticipated  costs to replace or repair existing
equipment  and  systems  in  order  to  keep  the  current  production  facility
operational  or  to  maintain  compliance  with  regulatory  requirements,   and
adjustments and modifications required for the new facility.

     The Company anticipates that cash requirements for operations will be up to
$10 million in the fourth quarter of 1996, as the Company expands production for
commercial  sale in Europe and in  anticipation  of  regulatory  approval in the
United States and expands its product development program. The cash requirements
are exclusive of payments to be received under any marketing,  distribution, and
development agreements. The fourth quarter projection includes interest payments
of  approximately  $2.7 million on the convertible  notes discussed  below,  and
expenditures  associated  with the  operation  of the  additional  manufacturing
facility  described  above.  Thereafter,  cash  requirements for operations will
depend upon the level of vaccine  production,  level of regulatory and marketing
costs,  and the level of  expenditures  for the Company's  ongoing  research and
development program.

     In May  1996,  the  Company  completed  an  offering  of 6.50%  convertible
subordinated  notes in the principal  amount of $86.25  million due May 1, 2003.
The net proceeds from this offering were approximately  $82.7 million.  Interest
on the  notes  is  payable  semiannually  on  May 1 and  November  1 each  year,
commencing November 1, 1996. The notes are convertible into common shares of the
Company,  at the initial  conversion  price of  approximately  $24.86 per common
share,  at any time after  August 5, 1996.  The notes also are  subordinated  to
present and future senior  indebtedness of the Company and will not restrict the
incurrence of future senior or other indebtedness by the Company.

     The notes are redeemable, in whole or in part, at the option of the Company
on or after May 1,  1999 at  certain  pre-established  redemption  prices,  plus
accrued interest.  Upon a change in control, the Company is required to offer to
purchase all or part of the notes then  outstanding at a purchase price equal to
100% of the principal  amount thereof,  plus interest.  The repurchase  price is
payable in cash or, at the option of the Company,  in common shares. The Company
is obligated to and has filed a registration  statement  registering  resales of
the notes and the underlying common shares.


                                     - 18 -
<PAGE>


     The Company's operating results for the fourth quarter of 1996, and for the
next  several  quarters,  may  fluctuate  significantly  based  upon a number of
factors  including,  among other things:  the magnitude of sales of products for
distribution  in Europe;  the timing of FDA  approval  for,  and the  commercial
introduction  of,  CERTIVA(TRADEMARK);  the  costs  associated  with  the  newly
acquired manufacturing facility, including significant depreciation expense; the
timing of the payments and the  satisfactory  completion of milestones under the
agreements with Pasteur  Merieux-Connaught  and Abbott; the cost associated with
clinical  trials;  and any additional  collaboration  agreement or  distribution
agreement.  There  are,  however,  no  assurances  that any  further  regulatory
approvals will be received, or that development  milestones will be achieved, or
that if obtained will contribute  materially to the quarterly  operating results
of the Company.  Further,  failure or significant delays in receiving additional
regulatory  approvals and meeting  required  milestones would have a significant
adverse effect on the Company's  future  operating  results and future financial
position.

TAX AND OTHER MATTERS

     At December 31, 1995, the Company and its  subsidiaries had income tax loss
carryforwards  of  approximately  $12 million to offset future  Canadian  source
income and  approximately  $45.7 million to offset future United States  taxable
income subject to the alternative minimum tax rules in the United States.





                                     - 19 -
<PAGE>


                           PART II. OTHER INFORMATION


ITEM 5.  OTHER INFORMATION

         (a)      In the  fourth  quarter,  the  Company  and  Abbott  signed  a
                  definitive   agreement   under  which   Abbott   would  market
                  CERTIVA(TRADEMARK),  the Company's DTaP vaccine, when approved
                  by the FDA. The marketing  agreement also will allow Abbott to
                  market  the  Company's  DTaP-HIB,  DTaP-IPV  and  DTaP-IPV-HIB
                  combination vaccines which are currently under development.

                  Abbott will market CERTIVA(TRADEMARK) and combination vaccines
                  to private  physicians  and managed care markets in the United
                  States for  immunization of infants and children.  The Company
                  will market CERTIVA(TRADEMARK) and the combination vaccines to
                  government  purchasers,  including  state  governments and the
                  Centers for Disease Control and Prevention.

                  On  execution  of the  agreement,  the  Company  received  $13
                  million of which $6.3 million  represented payment for 350,000
                  shares  of  the  Company's   common  stock,  and  the  balance
                  represented  a  marketing  fee  and  a  clinical   development
                  payment.  The  Company  and  Abbott  will  collaborate  in the
                  clinical  development of the  combination  vaccines and Abbott
                  will provide the Company with  clinical  development  funding.
                  The  Company  will  receive   payments  upon   achievement  of
                  prescribed  milestones.   The  agreement  provides  for  total
                  payments of up to $42 million by Abbott.  The first  milestone
                  relates to FDA approval of CERTIVA(TRADEMARK) provided certain
                  other conditions are satisfied.  In addition, the Company will
                  receive    revenues    from    Abbott    as    it    purchases
                  CERTIVA(TRADEMARK)  and the combination  vaccine  products for
                  resale to the private pediatric market.

         (b)      In the fourth  quarter,  the Company  acquired a 35,000 square
                  foot  manufacturing  facility  in  Beltsville,  Maryland.  The
                  acquisition  included the purchase and lease of equipment  and
                  leasehold  improvements  and the  assumption  of a real estate
                  lease.  The total  acquisition  cost was  approximately  $24.9
                  million,  which included a cash payment of $17.2 million.  The
                  balance of $7.7 million is represented  by an equipment  lease
                  obligation  which expires in 2000. The lease will be accounted
                  for as a capital lease for financial reporting purposes,  with
                  monthly payments of approximately  $179,000. In addition,  the
                  Company  has  assumed the real  estate  lease  underlying  the
                  facility,  which is  scheduled  to expire in 2000,  but may be
                  extended through 2010. Under the terms of the equipment lease,
                  the Company  has a buyout  option at the end of the third year
                  for a  predetermined  amount,  and an option at the end of the
                  fourth  year at the  greater of the fair  market  value of the
                  equipment or a predetermined amount. Under the equipment lease
                  agreement  there are  financial  covenants  that  obligate the
                  Company  to  maintain  certain  minimum  cash  and  investment
                  balances,  a minimum  tangible  net worth  and  certain  other
                  financial  ratios.  The  Company  would be required to post an
                  irrevocable letter of credit for predetermined amounts at such
                  time as the  Company  is not in  compliance  with any of these
                  financial covenants.

                                     - 20 -
<PAGE>


                           PART II. OTHER INFORMATION


ITEM 6.  EXHIBITS AND REPORTS ON FORM 8-K

         (a)      Exhibits

                  EXHIBIT NO.       DESCRIPTION

                  10.31             Exclusive   Distribution  Agreement  between
                                    Abbott  Laboratories  ("Abbott")  and  North
                                    American  Vaccine,   Inc.  ("NORTH  AMERICAN
                                    VACCINE")    dated    October   11,    1996.
                                    (Confidential  treatment has been requestsed
                                    for portions of this exhibit.)

                  10.32             Stock Purchase  Agreement  dated October 11,
                                    1996,  between  Abbott  and  NORTH  AMERICAN
                                    VACCINE.

                  10.33             Assets Purchase  Agreement dated October 17,
                                    1996, among NORTH AMERICAN VACCINE, Cephalon
                                    Property Management, Inc. and Cephalon, Inc.
                                    (Confidential  treatment has  been requested
                                    for portions of this exhibit.)

                  27                Financial Data Schedule


         (b)      Reports on Form 8-K

                  On August 16, 1996,  the Company filed with the Securities and
                  Exchange  Commission a Current Report on Form 8-K under Item 5
                  reporting the  agreement in principle  between the Company and
                  Abbott  to  market  the  Company's  diphtheria,   tetanus  and
                  acellular pertussis (DTaP) vaccine.




                                     - 21 -
<PAGE>


                                   SIGNATURES


         Pursuant to the  requirements  of the Securities  Exchange Act of 1934,
the  Registrant  has duly  caused  this report to be signed on its behalf by the
undersigned thereunto duly authorized.


                                 NORTH AMERICAN VACCINE, INC.
                                          (Registrant)


                                 By:    /S/ SHARON MATES
                                        ------------------------
                                        Sharon Mates, Ph.D.
                                        President


                                 By:    /S/ LAWRENCE J. HINELINE
                                        ------------------------
                                        Lawrence J. Hineline
                                        Vice President - Finance






Date:   November 14, 1996








                                     - 22 -







                        EXCLUSIVE DISTRIBUTION AGREEMENT


                                     BETWEEN


                               ABBOTT LABORATORIES


                                       AND


                          NORTH AMERICAN VACCINE, INC.





                                October 11, 1996



<PAGE>



                                TABLE OF CONTENTS

                                                                         PAGE

I.       DEFINITIONS......................................................  1

II.      APPOINTMENT......................................................  8

         2.1       Exclusive Appointment..................................  8
         2.2       Distribution Rights....................................  8
         2.3       Diligence..............................................  8
         2.4       Distribution Costs.....................................  8
         2.5       Selling Price..........................................  9
         2.6       Competing Products.....................................  9
         2.7       Diversionary Sales..................................... 10
         2.8       Promotional Materials.................................. 10
         2.9       Legends on Products.................................... 10
         2.10      Sales Training......................................... 11
         2.11      Product Storage and Shipping........................... 11
         2.12      Marketing Information.................................. 11

III.     CLINICAL DEVELOPMENT............................................. 11

         3.1       Clinical Program Scope................................. 11
         3.2       Research and Development Committee..................... 11
         3.3       Management of the Clinical Program..................... 11
         3.4       Annual Reports......................................... 13
         3.5       Funding................................................ 13
         3.6       Diligence in Conduct of the Clinical Program........... 13

IV.      SUPPLY OF PRODUCTS............................................... 14

         4.1       Purchase Requirements.................................. 14
         4.2       Quality Control and Quality Assurance.................. 14
         4.3       Forecasts.............................................. 15
         4.4       Firm Orders............................................ 16
         4.5       Allocation............................................. 16
         4.6       [Intentionally Omitted]................................ 16
         4.7       Returns................................................ 16
         4.8       Product Recalls........................................ 17
         4.9       Adjustments............................................ 17
         4.10      Independent Transaction................................ 17
         4.11      Delivery Terms......................................... 18




                                                    i

<PAGE>


                                TABLE OF CONTENTS
                                   (CONTINUED)
                                                                           PAGE

V.       PRICE AND PAYMENTS................................................. 18

         5.1       Price.................................................... 18
         5.2       Floor Price.............................................. 19
         5.3       Provisional Price........................................ 20
         5.4       Sales Reports............................................ 20
         5.5       Payment Procedure........................................ 21
         5.6       Interest Charges on Account of Late Payment.............. 21
         5.7       Application of Payments.................................. 21
         5.8       Taxes.................................................... 21
         5.9       Books and Records........................................ 21
         5.10      Marketing Fees........................................... 23
         5.11      Milestone Payments....................................... 23
         5.12      Other Reports............................................ 24

VI.      INDEMNITY.......................................................... 24

         6.1       Acts of Abbott........................................... 24
         6.2       Acts of NVX.............................................. 24
         6.3       Settlements.............................................. 25
         6.4       Limitation of Liability.................................. 25

VII.     PACKAGING AND LABELING............................................. 25

VIII.    TRADEMARKS AND TRADE NAMES......................................... 26

         8.1       Trademark................................................ 26
         8.2       Trademark Use............................................ 26
         8.3       Trademark Rights Upon Expiration......................... 26
         8.4       Trademark Rights Upon Termination........................ 26
         8.5       Trade Names.............................................. 27
         8.6       Infringement of Third Party Trademark Rights............. 27
         8.7       Third Party Infringement................................. 27
         8.8       Other Materials.......................................... 28
         8.9       Trademark Opposition..................................... 28

IX.      CONFIDENTIALITY.................................................... 28

         9.1       Confidentiality Obligations.............................. 28
         9.2       Press Releases........................................... 29
         9.3       Use After Termination.................................... 30
         9.4       Return of Confidential Information....................... 30



                                                    ii

<PAGE>


                                TABLE OF CONTENTS
                                   (CONTINUED)
                                                                         PAGE

X.       TERM AND TERMINATION............................................. 30

         10.1      Term................................................... 30
         10.2      Abbott Termination Right............................... 30
         10.3      Change of Control of Abbott or its Ross 
                    Products Division..................................... 30
         10.4      Acquisition of NVX..................................... 30
         10.5      Breach................................................. 31
         10.6      No Release............................................. 32
         10.7      Bankruptcy............................................. 32
         10.8      Failure to Make Payments............................... 32
         10.9      Obligations After Termination.......................... 33
         10.10     Conduct of Business in Anticipation of Termination..... 34
         10.11     Alternative Dispute Resolution......................... 34

XI.      PATENT MATTERS................................................... 37

         11.1      Notice of Infringement................................. 37
         11.2      Enforcement and Defense of Patents by NVX.............. 37
         11.3      Continuing Payment Obligations......................... 38
         11.4      Infringement by Products............................... 38
         11.5      Other Intellectual Property Matters.................... 40

XII.     MISCELLANEOUS.................................................... 41

         12.1      Relationship of the Parties............................ 41
         12.2      Applicable Law......................................... 41
         12.3      Jurisdiction........................................... 41
         12.4      Counterparts........................................... 41
         12.5      Notices................................................ 41
         12.6      Force Majeure.......................................... 42
         12.7      Binding Effect: Assignment............................. 43
         12.8      Entire Agreement....................................... 43
         12.9      Recitals and Schedules................................. 43
         12.10     Amendment.............................................. 43
         12.11     Severability........................................... 44
         12.12     Headings............................................... 44
         12.13     No Waiver of Rights.................................... 44
         12.14     Usage.................................................. 44
         12.15     No Third Party Rights.................................. 44
         12.16     No Licenses............................................ 44
         12.17     Interpretation......................................... 44




                                                   iii

<PAGE>


                                TABLE OF CONTENTS
                                   (CONTINUED)
                                                                          PAGE
XIII.    ADVERSE EVENT REPORTING/CUSTOMER AND TECHNICAL
         SUPPORT........................................................... 44

XIV.     REPRESENTATIONS AND WARRANTIES.................................... 46

XV.      SURVIVAL.......................................................... 46





                                                    iv

<PAGE>



                        EXCLUSIVE DISTRIBUTION AGREEMENT


         THIS AGREEMENT is made this 11th day of October 1996 (the "Effective
Date") by and between Abbott Laboratories, a corporation organized under the
laws of the State of Illinois having its principal place of business at Abbott
Park, Illinois, through its Ross Products Division ("Abbott"), having offices at
625 Cleveland Avenue, Columbus, Ohio 43215-1724 and North American Vaccine, Inc.
("NVX"), a corporation organized and existing under the laws of Canada having
offices at 12103 Indian Creek Court, Beltsville, Maryland 20705.

                                   WITNESSETH

         WHEREAS, NVX is developing certain vaccines with the intention of
obtaining FDA approval for such vaccines for pediatric administration;

         WHEREAS, Abbott is willing to provide funding towards the continued
development of such vaccines and to assist NVX in such development;

         WHEREAS, Abbott desires to be become the exclusive distributor of such
vaccines in the private pediatric market in the United States; and

         WHEREAS, NVX is willing to appoint Abbott as the exclusive distributor
of such vaccines in the United States, and Abbott is willing to accept such
appointment, all in accordance with the terms and conditions hereof.

         NOW THEREFORE, for and in consideration of the foregoing, of the mutual
covenants and undertakings contained herein and of other consideration, the
receipt and sufficiency of which are hereby acknowledged, Abbott and NVX,
intending to be legally bound, hereby agree as follows:

I.       DEFINITIONS

         1. As used in the Agreement, the following capitalized terms shall have
the meanings set forth below. Capitalized terms in this Agreement used in the
plural shall have the same meaning as for the singular and vice-versa.

            1.1 "ABBOTT INDEMNITIES" shall have the meaning set forth in Section
6.2.

            1.2 "AFFILIATE" means, with respect to any Person, (a) any other
Person of which securities or other ownership interests representing more than
fifty percent (50%) of the voting interests are, at the time such determination
is being made, beneficially owned or Controlled by such Person, or (b) any other
Person which, at the time such determination is being made, is Controlling,
Controlled by or under common Control with such Person. For the purposes hereof,
(i) "Control," whether used as a noun or verb, refers to the possession,
directly or indirectly, of the power to affirmatively

                                       -1-




<PAGE>



direct, or affirmatively cause the direction of, the management and policies of
a Person, whether through the ownership of voting securities, by contract or
otherwise, and (ii) a "beneficial owner" of a security is any Person who,
directly or indirectly, through any contract, arrangement, understanding,
relationship or otherwise has or shares (with the ability to unilaterally
exercise) (x) voting power, which includes the power to vote, or direct the
voting of, such security, or (y) investment power, which includes the power to
dispose, or to direct the disposition of, such security.

            1.3 "AVERAGE UNIT NET SELLING PRICE" means, [*]

            1.4 "BASE AMOUNT" shall have the meaning set forth in Section
5.1(c).

            1.5 "cGMP" shall have the meaning set forth in Section 4.2.

            1.6 "CHANGE OF CONTROL TRANSACTION" means any of the following
transactions between a Party and another corporation or other legal entity that
is not an Affiliate of such Party: a statutory merger, consolidation or similar
corporate transaction in which the stockholders or other Persons who
beneficially owned or Controlled the voting interests of the other corporation
or legal entity prior to such merger, consolidation or transaction beneficially
own or Control, after such merger, consolidation or transaction [*] of the
voting interests of the surviving corporation or legal entity; the sale or other
similar disposition in a transaction or series of transactions of all or
substantially all of the assets of the Party; the sale, spin-off or other
disposition by Abbott in a transaction or series of transactions of all or
substantially all of the equity interest in or the assets of the Ross Products
Division; and the sale of voting securities of the Party in a transaction or
series of transactions pursuant to which the acquiring Person(s) beneficially
owns or Controls, directly or indirectly, [*] of the voting securities of the
Party.

            1.7 "CLINICAL PROGRAM" means the program of human clinical testing
of the Products described in Section 3.1.

            1.8 "COMMITTEE" shall have the meaning as set forth in Section 3.2.

            1.9 "COMPETITIVE VACCINE" means [*]


[*] Confidential information has been omitted and filed separately with the
    Commission.
                                       -2-




<PAGE>





            1.10 "CONFIDENTIAL INFORMATION" means any and all technical data,
information, materials and other know-how presently owned by or developed by, or
on behalf of, either Party during the term of this Agreement which relates to
the Products, their preparation, marketing, sale or use and any and all
financial data and information relating to the businesses of either of the
Parties and/or of their Affiliates.

            1.11 "CONTRACT YEAR" means, with respect to each Product, the
calendar year [*]

            1.12 "CUSTOMER(S)" shall mean an authorized wholesaler(s) and/or
distributor(s) of Products and such other customers which Abbott bills directly
and acquires Product from Abbott for resale pursuant to contract with Abbott.

            1.13 "DESIGNATED REPRESENTATIVE" shall have the meaning as set forth
in Section 3.2.

            1.14 "DOSE" means, for each Product, the quantity of vaccine used
for a single administration of the Product to a patient.

            1.15 "DTP VACCINE" means [*]

            1.16 "DTP-HIB VACCINE" means [*]

            1.17 "DTP-IPV VACCINE" means [*]

            1.18 "DTP-IPV-HIB VACCINE" means [*]

            1.19 "EFFECTIVE DATE" means the date first set forth above.


[*] Confidential information has been omitted and filed separately with the
    Commission.

                                       -3-




<PAGE>



            1.20 "FDA" means the United States Food and Drug Administration, or
any successor to it responsibilities with respect to pharmaceutical products
such as the Products.

            1.21 "FULLY-ABSORBED MANUFACTURING COST" means with respect to each
Product: [*]

            1.22 "HMO" shall have the meaning as set forth in Section 1.37.

            1.23 "LOSSES" means losses, liabilities, costs, expenses (including
reasonable attorneys' fees), claims, penalties, judgments and/or damages
(including personal injury or property damages or consequential damages).

            1.24 "LRP" shall have the meaning as set forth in Section 10.4.

            1.25 "NET SALES" of a Product means the total of the gross amount
billed or invoiced on the first sale or other disposition of the Product by
Abbott to Third Parties, plus any amounts due to or received by Abbott from such
Third Party in consideration of the sale of such Product, whether based on the
sale or resale of such Product, less:

                 a) Rebates granted and allowances, chargebacks and trade,
quantity or cash discounts actually allowed and taken, except rebates,
chargebacks or discounts granted wholly or partially in consideration of a Third
Party's agreement to purchase any service or any product other than a Product
(other than where such rebates or discounts are "across-the-board" rebates or
discounts applied uniformly to the Product and other products or services as
part of an overall program of rebates or discounts established by Abbott
covering a broad range of its products);

                 b) Retroactive price reductions imposed by government
authorities;

[*] Confidential information has been omitted and filed separately with the
    Commission.

                                       -4-




<PAGE>



                 c) Fees, commissions or rebates lawfully paid pursuant to
contracts with group purchasing organizations to the extent specifically related
to and based on the number of units of Products sold to members of the group;

                 d) Amounts actually repaid a Third Party by reason of
rejection, recall or return of Product as evidenced by written records, except
where such rejection, recall or return is due to expiration of Product dating or
is a cost or expense of Abbott under Section 4.8(b);

                 e) Actual freight and insurance costs in transporting such
Product to such Third Parties and paid by the Third Party, as evidenced by
written records; and

                 f) Sales, use, excise, value-added and other direct taxes,
customs duties and other government charges incurred and paid by the Third
Party, as evidenced by written records.

The "gross amount billed or invoiced" for calculating Net Sales of any Product
shall mean:

                 (i)   If the Product is sold to a Third Party other than a
Special Party, Abbott's actual billing or invoice amount for such Product;

                 (ii)  If the Product is sold to an Affiliate for subsequent
resale by or for such Affiliate, the greater of Abbott's actual billing or
invoice amount or the Affiliate's actual billing or invoice amount for such
Product; or

                 (iii) If the Product is sold to a Special Party for use by such
Special Party, the billing or invoice amount that would have resulted by
multiplying the number of Vials sold to such Special Party by the Average Unit
Net Selling Price for Product [*] or

                 (iv)  If the Product is otherwise provided to a Third Party,
the billing or invoice amount that would have resulted by multiplying the number
of Vials provided to such Third Party by the Average Unit Net Selling Price for
Product [*]

In the event that Abbott receives any fixed payment, fee or other consideration
from a Third Party in consideration of any discount, credit or similar allowance
granted to such Third Party in connection with the sale of any Product or
Products, the dollar amount equal to such consideration shall be added to the
gross amount billed or invoiced for such sale for purposes of calculating Net
Sales.

[*] Confidential information has been omitted and filed separately with the
    Commission.

                                       -5-




<PAGE>



            1.26 "NVX INDEMNITEES" shall have the meaning as set forth in
Section 6.1.

            1.27 "NVX VACCINES" means collectively the DTP Vaccine, DTP-IPV
Vaccine, DTP-Hib Vaccine and DTP-IPV-Hib Vaccine.

            1.28 "PARTY" means NVX or Abbott, and "PARTIES" means NVX and
Abbott.

            1.29 "PATENTS" means:

                 a) The existing patents designated on Exhibit A attached
hereto; b) Any patents issued jointly to the Parties and patent applications
filed by or assigned jointly to the Parties that cover a Product and are in
existence prior to the date of first commercial sale of such Product in the
Territory; and c) Any reissues, reexaminations, renewals, extensions,
divisionals, continuations and continuations-in-part of the foregoing.

            1.30 "PEDIATRIC ADMINISTRATION" means administration to any person
under seven (7) years of age.

            1.31 "PERSON" means a natural person, a corporation, a partnership,
a trust, a joint venture, any governmental authority or any other entity or
organization.

            1.32 "PHASE I CLINICAL TRIAL" means a clinical study of a Product
involving human subjects and designed primarily to assess the safety of the
Product under investigation.

            1.33 "PHASE I/II CLINICAL TRIAL" means a clinical study of a Product
involving human subjects and designed primarily to assess the safety,
immunogenicity and optimal dosage of the Product under investigation.

            1.34 "PHASE III CLINICAL TRIAL" means a clinical study of a Product
involving human subjects and designed primarily to assess the safety and
efficacy of the Product under investigation.

            1.35 "PHASE IV CLINICAL TRIAL" means a clinical study of a Product
involving human subjects and conducted to maintain the marketing authorization
of the Product under investigation.

            1.36 "PLA" means a Product License Application submitted to the FDA.

            1.37 "PRIVATE PEDIATRIC MARKET" means private pediatricians, staff
and group model health maintenance organizations ("HMOs") and other Third
Parties that dispense vaccines for Pediatric Administration, but shall exclude
only U.S. (including

                                       -6-




<PAGE>



Puerto Rico and all other territories and possessions) Federal, state, local and
other government entities including, without limitation, the U.S. Centers for
Disease Control.

            1.38 "PRODUCT APPROVAL" means, with respect to a Product, one or
more licenses issued by the FDA for manufacturing, marketing and sale.

            1.39 "PRODUCT" means any one of the NVX Vaccines and "PRODUCTS"
means the NVX Vaccines.

            1.40 "PROJECT LEADER" shall have the meaning as set forth in Section
3.3.

            1.41 "PURCHASE PRICE" shall have the meaning as set forth in Section
5.1(e).

            1.42 "REQUIREMENTS" shall have the meaning as set forth in Section
4.1.

            1.43 "SPECIAL PARTY" means an Affiliate of Abbott or any other
Person enjoying a special course of dealing with Abbott, or any of its
Affiliates, except for Customers operating in the normal course of business. A
"special course of dealing" shall mean co-marketing or other arrangements
between a Third Party and Abbott or one of its Affiliates wherein the Third
Party sells a Product and Abbott or its Affiliate receives additional
compensation based on the ultimate sale of the Product, or barter arrangements
in which Abbott or its Affiliate exchanges a Product with a Third Party for
another product or other products in-kind.

            1.44 "SPECIFICATIONS" shall have the meaning as set forth in Section
4.2.

            1.45 "TERRITORY" means the United States of America, its territories
and possessions, and Puerto Rico.

            1.46 "THIRD PARTY" means any Person that is not a Party to this
Agreement.

            1.47 "TRADEMARKS" means a trademark or trademarks to be co-owned by
Abbott and NVX during the term of this Agreement and agreed upon in writing by
the Parties for use by Abbott and NVX with the Products in the Territory in
accordance with the terms of this Agreement.

            1.48 "VALID CLAIM" means a claim of an issued and unexpired patent
included in the Patents that has not been (a) held revoked, unenforceable or
invalid by a decision of a court or governmental agency of competent
jurisdiction over such claim, which decision is unappealable or unappealed
within the time allowed for appeal or (b) admitted by the holder to be invalid
or unenforceable through disclaimers, consent decrees or otherwise.


                                       -7-




<PAGE>



            1.49 "VIAL" means, with respect to each Product, a finally-packaged
form of the Product for sale to the customer. Each Vial may contain one or more
Doses of the Product.

II.      APPOINTMENT

         2.1 EXCLUSIVE APPOINTMENT. From the Effective Date and for the term of
this Agreement, subject to all of the provisions of this Agreement, NVX hereby
appoints Abbott as its exclusive distributor of Products solely for Pediatric
Administration to the Private Pediatric Market in the Territory, and Abbott
accepts such appointment as exclusive distributor.

         2.2 DISTRIBUTION RIGHTS. Subject to the terms hereof, Abbott shall have
the exclusive rights to distribute, market, promote and sell Products solely for
Pediatric Administration to the Private Pediatric Market in the Territory. NVX
agrees not to voluntarily license any Third Party under any of the Patents to
distribute, market, promote or sell any of the Products for Pediatric
Administration to the Private Pediatric Market in the Territory.

         2.3 DILIGENCE. Abbott shall use reasonable commercial efforts in
carrying out the commercialization of each of the Products for Pediatric
Administration in the Private Pediatric Market in the Territory. Pursuant to the
foregoing, Abbott, at its own expense, shall:

                 a) promptly introduce each of the Products for Pediatric
Administration to the Private Pediatric Market in the Territory as soon as
practicable after Product Approval is received by NVX, subject to NVX's ability
to supply adequate inventories of Product for Product introduction;

                 b) use reasonable, diligent commercial efforts to detail,
market, distribute and sell the Products to maximize the market potential of
each of the Products;

                 c) maintain an adequate inventory of each of the Products to
supply anticipated demand therefor, subject to NVX's ability to supply the same;
and

                 d) otherwise act in good faith to commercialize each of the
Products for Pediatric Administration in the Private Pediatric Market in the
Territory in a manner which, in Abbott's good faith exercise of its business
judgment, maximizes the commercial benefits of the Products.

         2.4 DISTRIBUTION COSTS. Abbott shall be solely responsible for all
costs associated with the following relating to the sale of the Products to the
Private Pediatric Market in the Territory: transportation charges; quantity or
cash discounts; service allowances; commissions; credits or allowances given on
account of price adjustments, bad debts, returns, rebates or chargebacks;
returns or rejections other than Product

                                       -8-




<PAGE>



recalls; and all taxes, surcharges, assessments or governmental charges imposed
upon Abbott measured by the sale, transportation or delivery of the Products by
Abbott. The Parties acknowledge that certain of the foregoing costs are
appropriate deductions from gross sales for the purpose of determining Net Sales
as defined in Section 1.25.

         2.5 SELLING PRICE. The final sales price of each of the Products sold
by Abbott shall be determined by Abbott in its sole and absolute discretion.

         2.6 COMPETING PRODUCTS. During the term of this Agreement, and subject
to Section 11.4(e):

                  a) Neither Party, nor any of its Affiliates, shall make, use
or sell in the Territory any Competitive Vaccine, [*]

                  b) [*]


[*] Confidential information has been omitted and filed separately with the
    Commission.


                                       -9-




<PAGE>





                  c) [*]

         2.7 DIVERSIONARY SALES. Abbott covenants not to sell the Products
outside of the Private Pediatric Market in the Territory and anywhere outside of
the Territory and not knowingly to sell the Products to any Third Party for
diversion for sale outside of the Private Pediatric Market in the Territory or
anywhere outside of the Territory. NVX covenants not to sell the Products in the
Private Pediatric Market within the Territory and not knowingly to sell the
Products to any Third Party for diversion for sale in the Private Pediatric
Market in the Territory.

         2.8 PROMOTIONAL MATERIALS. Abbott shall be solely responsible for all
costs associated with the development, production and distribution of
promotional materials associated with the Products for Pediatric Administration
in the Private Pediatric Market in the Territory. All matters regarding
promotion and advertising of the Products in the Private Pediatric Market in the
Territory shall be decided by Abbott with input from NVX, [*] consistent with
all statutory and regulatory requirements, including without limitation, FDA
rules and regulations governing the packaging and labeling of the Products. NVX
and Abbott shall keep each other informed of their respective on-going
promotional and advertising programs in the Territory.

         2.9 LEGENDS ON PRODUCTS. NVX shall mark all Products supplied to Abbott
hereunder with an appropriate notice that such Products are patented. The form
of such notice shall conform to the requirements of 35 U.S.C. ss. 287(a) and
shall comply with any other notice or legend requirement of applicable law or
regulation.

[*] Confidential information has been omitted and filed separately with the
    Commission.


                                      -10-




<PAGE>




         2.10 SALES TRAINING. Abbott shall be solely responsible for all costs
associated with training and updating its sales force in the Territory.

         2.11 PRODUCT STORAGE AND SHIPPING. Abbott shall store and ship the
Products to customers in the Territory in accordance with all applicable laws
and regulations and labeling for the Products which are designed to provide that
the Products continue to meet Specifications, and take all reasonable efforts to
provide that its Customers adhere to the same standards. Abbott shall be
responsible, and NVX shall not be liable, for any Losses due to the failure of
Abbott's Customers to comply with the foregoing standards or for the failure of
Abbott or its Customers to resell or use the Products prior to the expiration of
the Products' respective dating periods.

         2.12 MARKETING INFORMATION. NVX shall have the right at reasonable
intervals, [*] to request information regarding Abbott's marketing and
promotional activities undertaken with respect to the Products. Abbott shall
provide such information, in its sole discretion, to the extent it is available
in its ordinary course of business without any special effort or expense.

III.     CLINICAL DEVELOPMENT

         3.1 CLINICAL PROGRAM SCOPE. The Parties shall collaboratively undertake
a program of human clinical testing of the Products, commencing on the Effective
Date and continuing for each Product through all Phase I Clinical Trials, Phase
I/II Clinical Trials, Phase III Clinical Trials and any necessary or warranted
Phase IV Clinical Trials to maximize the commercial potential for each Product
for Pediatric Administration in the Private Pediatric Market. The program for
such development of the Products shall be conducted in accordance with the
provisions of this Article III.

         3.2 RESEARCH AND DEVELOPMENT COMMITTEE. Each party shall designate two
representatives ("Designated Representatives") to serve on a Research and
Development Committee ("Committee") to determine and monitor the priorities,
goals, budgets, resource allocations and milestones for the ongoing clinical
development of the Products.

         3.3 MANAGEMENT OF THE CLINICAL PROGRAM.

                 a) The Clinical Program shall be managed by the Committee. The
Committee may seek the input and advice of employees of the Parties of
sufficient qualifications such that the Committee will be in a position to
discuss the Clinical Program knowledgeably, evaluate the results thereof, and
make recommendations to the Parties regarding the priorities therefor. Such
people may be invited by a Party's Designated Representative to attend meetings
of the Committee, as appropriate. The Committee may also seek advice from Third
Parties relating to the Clinical Program, subject to appropriate confidentiality
requirements and the mutual agreement of the Parties. One of each Party's
Designated Representatives to the Committee shall be a "Project Leader," who is
responsible for coordinating that Party's part of the Clinical

[*] Confidential information has been omitted and filed separately with the
    Commission.

                                      -11-




<PAGE>



Program. The Project Leaders shall be the primary contacts between the Parties
with respect to the Clinical Program. Each Party initially shall designate its
Project Leader and its other representatives to the Committee by written notice
to the other Party within thirty (30) days after the Effective Date. Each Party
thereafter may change its Project Leader or its other Designated Representative
to the Committee upon delivering written notice to the other party.

                 b) The Committee shall hold an organizational meeting promptly
after designation of each Party's Designated Representatives, [*] Thereafter,
the Committee shall meet from time to time when reasonably requested by either
Project Leader as necessary to manage the conduct of the Clinical Program, [*]
All meetings of the Committee shall be at specific times and places agreed upon
by the two Project Leaders. Members of the Committee may attend meetings in
person or by telephone or video conferencing, provided that members attending by
telephone or video conferencing can hear and be heard. Each Party shall bear any
expenses incurred by its Designated Representatives and its employees and other
representatives of the Party in attending meetings of the Committee.

                 c) Each Party shall ensure that at least one of its Designated
Representatives is in attendance at each meeting of the Committee. All decisions
of the Committee shall [*] The Parties shall use all reasonable good faith
efforts to resolve any issues as to which the Committee cannot agree in order to
maximize the commercial potential for each Product in the Private Pediatric
Market in the Territory. In the event that a dispute cannot be resolved and
continues [*] each Party shall have the right to submit the matter to the
Parties' Presidents (the President of Ross Products Division in the case of
Abbott) for resolution. [*]

                 d) [*] following each Committee meeting, the Project Leaders
shall prepare, and distribute to each Party, a reasonably detailed written
summary report [*]

                 e) The Committee may establish working groups of scientists and
others to carry out specific aspects of the Clinical Program.

[*] Confidential information has been omitted and filed separately with the
    Commission.

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<PAGE>



         3.4 ANNUAL REPORTS. To keep each other apprised of its progress under
this Article 3, each Party shall submit annual progress reports as to its
Product development, approval and marketing activities, [*]

         3.5 FUNDING. Subject to Section 10.4, Abbott shall provide funding [*]
in support of the Clinical Program during the term of this Agreement. The
payments shall be made as follows: [*] Such funding shall be used first to
support out-of-pocket expenses of Phase I, II, III and IV Clinical Trials
(including a Phase IV Clinical Trial for the DTP Vaccine), and thereafter to
support NVX's labor and other internal costs related to the Clinical Program.
[*]

         3.6 DILIGENCE IN CONDUCT OF THE CLINICAL PROGRAM. NVX shall use
reasonable commercial efforts in the conduct of its activities pursuant to the
Clinical Program in furtherance of obtaining marketing approvals for the
Products that maximize the commercial potential for the Products. Subject to
Section 3.5 and consistent with a reasonable allocation of NVX's internal
resources among its clinical programs, NVX shall accord a priority to the
Clinical Program as high as its other clinical programs for products of similar
market potential and expeditiously file with the FDA to obtain Product Approvals
for the Products. [*]


[*] Confidential information has been omitted and filed separately with the
    Commission.

                                      -13-




<PAGE>



[*] Abbott shall cooperate with NVX in support of NVX's activities undertaken in
conducting the Clinical Program in accordance with the foregoing.

IV.      SUPPLY OF PRODUCTS

         4.1 PURCHASE REQUIREMENTS.

             During the term and in accordance with the provisions of this
Agreement, Abbott shall purchase exclusively from NVX all of its Requirements of
the Products, and NVX shall sell such quantities of Products to Abbott, subject
to the provisions hereof, including without limitation the provisions of Section
4.4. [*]

         4.2 QUALITY CONTROL AND QUALITY ASSURANCE.

                 a) Each of the Products supplied by NVX to Abbott hereunder
shall conform to the release specifications for the Product as approved by the
FDA as set forth in the Product Approval for such Product ("Specifications") and
shall be manufactured in accordance with then-current Good Manufacturing
Practices ("cGMPs") as set forth in 21 C.F.R. Parts 211 and 600 through 680, and
any successor thereof.

                 b) NVX shall maintain a quality control program consistent with
cGMPS, as required by all applicable laws and regulations and all subsequent
additions and revisions thereto.

                 c) All Product received by Abbott shall be deemed accepted,
unless Abbott shall give written notice to NVX [*] specifying the manner in
which the Product does not conform to the Specifications. Such notice shall be
accompanied by written reports of any testing performed by Abbott on the
Product. Acceptance of a Product shall not be deemed to supersede, alter or
limit any warranty, obligation or liability NVX may have under this Agreement.

                 d) Upon receipt of such notice, NVX may request Abbott to
return the non-accepted Product, or samples thereof, for testing by NVX.
[*]


[*] Confidential information has been omitted and filed separately with the
    Commission.

                                      -14-




<PAGE>





                 e) If as finally determined above a shipment of a Product does
not conform to the Specifications, or if the Product is not sellable and must be
recalled because of NVX's non-compliance with cGMPs with respect to the Product,
NVX will give full credit for such Product at the price invoiced by NVX or paid
by Abbott and, at Abbott's request, shall replace such shipment with conforming
Product at the original invoice price per Vial of Product being replaced. All
transportation, shipping and insurance cost, and other fees incident to the
shipping of such replacement Product (to the extent previously paid by Abbott
for the non-conforming Product) will be paid by NVX or if Abbott has not
requested a replacement shipment, such costs and fees shall be credited to
Abbott's account. At NVX's expense, the non-conforming shipment shall be
returned to NVX. EXCEPT AS PROVIDED IN SECTION 6.2, THE FOREGOING SHALL BE NVX'S
SOLE LIABILITY FOR, AND ABBOTT'S SOLE AND EXCLUSIVE REMEDY WITH RESPECT TO, THE
SUPPLY OF ANY SHIPMENT OF A PRODUCT THAT DOES NOT CONFORM TO THE SPECIFICATIONS
OR WAS NOT MANUFACTURED IN ACCORDANCE WITH CGMPS.

                 f) Abbott shall have the right during normal business hours and
with reasonable advance notice to visit NVX's facility for the purpose of
observing the manufacturing, packaging, testing, and warehousing of the
Products.

                 g) EXCEPT AS SET FORTH IN SECTION 4.2(a) ABOVE, NVX DISCLAIMS
ANY WARRANTIES, EXPRESS OR IMPLIED, TO ABBOTT WITH REGARD TO THE PRODUCTS
SUPPLIED BY NVX HEREUNDER, INCLUDING WARRANTIES WITH REGARD TO MERCHANTABILITY
OR FITNESS FOR A PARTICULAR PURPOSE.

                 h) The Parties hereto agree that the sale and supply of
Products by NVX and the purchase of Products by Abbott hereunder shall be
subject to and governed by the terms and conditions hereof. None of the terms
and conditions set forth on any purchase or order form, invoice, acknowledgement
or the like shall change or modify the provisions of this Agreement unless it is
signed and delivered by authorized representatives of both of the Parties hereto
and it clearly indicates by specific reference to this Agreement that the
Parties intended to vary the provisions hereof.

         4.3 FORECASTS.

             Abbott shall provide NVX with a written forecast (by Product and
month) of the quantity of Products that Abbott expects to order [*]


[*] Confidential information has been omitted and filed separately with the
    Commission.

                                      -15-




<PAGE>



[*] 

         4.4 FIRM ORDERS.

                 a) Abbott shall specify by firm written purchase order its
requirements for each of the Products for each calendar quarter [*] NVX shall
use reasonable commercial efforts to supply the Products to Abbott in accordance
with its orders.

                 b) [*]

         4.5 ALLOCATION. In the event that NVX is unable to fill Abbott's firm
purchase orders for the Products, NVX shall allocate the available Products
among its customers (including Abbott) in accordance with [*]

         4.6 [INTENTIONALLY OMITTED]

         4.7 RETURNS. Except in the case of Section 4.8 where NVX is responsible
for the costs and expenses of a Recall, Abbott shall not be permitted to return
for refund or credit any Products meeting Specifications therefor that Abbott
has ordered and NVX has supplied hereunder, without the prior written consent of
NVX.


[*] Confidential information has been omitted and filed separately with the
    Commission.

                                      -16-




<PAGE>



         4.8 PRODUCT RECALLS.

                    a) Each Party shall promptly notify the other Party in
writing of any facts relating to a possible advisability of a recall or the
destruction or withholding from the market in the Territory of any Product
(collectively "Recall"). If at any time (i) any governmental or regulatory
authority in the Territory issues a request, directive or order for a Recall of
a Product from the market in the Territory, (ii) a court of competent
jurisdiction orders a Recall of such Product from the market in the Territory,
or (iii) either Party determines, after consultation with the other Party, that
a Recall of such Product from the market in the Territory is necessary or
advisable, Abbott shall take all appropriate corrective action to effect the
Recall in the Private Pediatric Market in the Territory and NVX shall take all
appropriate corrective action to effect the Recall outside of the Private
Pediatric Market in the Territory. Each Party shall provide the other Party with
such cooperation in connection with the Recall as the other Party may reasonably
request. NVX shall give prior notice to Abbott if NVX is instituting a Recall of
Product outside of the Territory.

             b) [*]

         4.9  ADJUSTMENTS. If Abbott's reasonably forecasted needs exceed NVX's
capabilities, NVX, in consultation with Abbott, shall determine the best means
of resolving such capacity constraints, [*]

         4.10 INDEPENDENT TRANSACTION. Each shipment of Product hereunder shall
constitute a separate and independent transaction and NVX shall be entitled to
payment for each such shipment without reference to any other. Notwithstanding
the foregoing, the Parties shall be entitled to reflect in the invoices any
appropriate credits or similar adjustments thereto.


[*] Confidential information has been omitted and filed separately with the
    Commission.

                                      -17-




<PAGE>



         4.11 DELIVERY TERMS. All Products shall be sold and be delivered
F.O.B., NVX's manufacturing facility. Title and risk of loss shall pass to
Abbott upon delivery by NVX to the carrier specified by Abbott. Each shipment of
Product shall be accompanied or followed by an invoice and a statement in
compliance with 21 USC ss. 303(c)(2) or any successor thereto. NVX may ship
Product in accordance with Abbott's instructions via the carrier specified by
Abbott directly to Customers of Abbott. However, nothing in this Agreement shall
be construed as an obligation of NVX to inventory the Product or act or serve as
a wholesaler or distributor of Abbott pursuant to which NVX would deliver
Products to end-users or final customers.

V.       PRICE AND PAYMENTS

         5.1  PRICE. The invoice price for each Product sold by NVX to Abbott
pursuant to and during the term of this Agreement shall be determined in
accordance with Section 5.3. Adjustments in the amounts paid to NVX on account
of the sale of the Products to Abbott in each calendar year shall be made as
follows:

                 a) [*]

                 b) [*]

                 c) [*]

[*] Confidential information has been omitted and filed separately with the
    Commission.

                                      -18-




<PAGE>





                 d) [*]

                 e) [*]

                 f) [*]

         5.2 FLOOR PRICE. [*]



[*] Confidential information has been omitted and filed separately with the
    Commission.




                                      -19-




<PAGE>





         5.3 PROVISIONAL PRICE. [*]

         5.4 SALES REPORTS. On or before [*] of each year following the first
sale of a Product, Abbott shall deliver to NVX a true and accurate written
report showing the following as they apply to the calendar quarter immediately
preceding the date of such report:

                 a) For each Product and differently-sized Vial, the total
quantity of Vials of each Product billed, invoiced or otherwise provided to a
Third Party during the immediately preceding calendar quarter; and

                 b) The computation of the Net Sales of each such Product,
including a detailed accounting of: [*]

[*]



[*] Confidential information has been omitted and filed separately with the
    Commission.


                                      -20-




<PAGE>



[*] The correctness and completeness of each such report shall be certified in
writing by an authorized representative of Abbott. On or before the date [*]
after the end of the calendar quarter in which this Agreement expires or is
terminated, Abbott shall provide to NVX a written report that complies in all
respects with this Section 5.4.

         5.5 PAYMENT PROCEDURE. All payments payable by Abbott hereunder shall
be paid to NVX in U.S. Dollars by wire transfer, or by such other method
mutually agreed upon by the Parties, for value [*] to such bank account or
accounts as NVX shall designate in writing, within a reasonable period of time
prior to such due date. Abbott shall provide NVX with [*] advance notice of each
such wire transfer.

         5.6 INTEREST CHARGES ON ACCOUNT OF LATE PAYMENT. If Abbott fails to pay
any payment required under this Agreement [*] Abbott shall pay interest on such
amount at [*] which interest shall accrue from the date the payment not timely
made became due until the date such payment is paid in full. If such rate
exceeds the rate allowed by applicable law, then the highest rate allowed by law
shall apply.

         5.7 APPLICATION OF PAYMENTS. Any payments received by NVX shall be
applied first to the satisfaction of any unpaid, accrued interest and then to
the satisfaction of any unpaid principal.

         5.8 TAXES. If any law or regulation requires the withholding of any
taxes levied on the payment of any amounts payable to NVX under this Agreement,
such taxes shall be deducted by Abbott from the amount otherwise payable to NVX
and paid by Abbott to the proper taxing authority. Abbott shall secure proof of
any such tax payment, and send such proof to NVX as evidence of such payment
together with such other documents as NVX may reasonably require in order to
secure a refund of or credit for the amount of such payment. Except for the
foregoing, each Party shall be responsible for any taxes that are levied on it
in connection with its obligations under this Agreement. Abbott shall provide
NVX with a copy of its resale certificate in order to enable NVX to claim a
sales tax exemption for all sales of Product by NVX to Abbott. NVX shall be
entitled to include and separately state on each invoice for Product the excise
tax imposed on the sales of Products to Abbott, and Abbott shall pay such
amounts to NVX at the time Abbott pays the invoice price for such Product. NVX
shall be responsible for remitting the excise tax to the appropriate
governmental entity.

         5.9 BOOKS AND RECORDS.

                 a) Abbott shall keep full, true and accurate books of account
containing all particulars and reasonable supporting documentation which may be
necessary for the purpose of determining [*]


[*] Confidential information has been omitted and filed separately with the
    Commission.


                                      -21-




<PAGE>



         [*] and Abbott's compliance in other respects with its financial
obligations under this Agreement. The books of account and reasonable supporting
documentation shall be kept at Abbott's and/or its Ross Products Division's
principal place of business and shall be open during normal business hours for
confidential inspection no more frequently than once each calendar year for [*]
following the end of the calendar year to which they pertain by any of the "big
six" independent certified public accounting firms retained by NVX for the
purpose of verifying Abbott's reports and/or Abbott's compliance in other
respects with its financial obligations under this Agreement. [*] If such
records are insufficient for the foregoing purposes or any such inspection
discloses an underpayment of [*] of the amount actually due, then, in addition
to any other rights and remedies available to NVX under this Agreement, Abbott
shall promptly pay the reasonable cost of such inspection after Abbott's receipt
of the bill or invoice for such inspection. Abbott shall be provided a copy of
the audit report and shall have the right to have its own audit conducted by a
"big six" independent certified public accounting firm with respect to the
subject matter of the audit report. In the case of any discrepancy and the
Parties are unable to agree on a resolution thereof, an independent auditor
mutually agreed to by the Parties shall be retained to conduct a final audit,
the results of which shall be binding on the Parties.

                 b) NVX shall keep full, true and accurate books of account
containing all particulars and reasonable supporting documentation [*] and NVX's
compliance in other respects with its financial obligations under this
Agreement. The books of account and reasonable supporting documentation shall be
kept at NVX's principal place of business and shall be open during normal
business hours for confidential inspection no more frequently than once each
calendar year [*] following the end of the calendar year to which they pertain
by any of the "big six" independent certified public accounting firms retained
by Abbott for the purpose of verifying NVX's records and/or NVX's compliance in
other respects with its financial obligations under this Agreement. In no event
shall the auditor disclose to Abbott any [*]


[*] Confidential information has been omitted and filed separately with the
    Commission.

                                      -22-




<PAGE>



[*] If such records are insufficient for the foregoing purposes or any such
inspection discloses a discrepancy resulting in an overpayment by Abbott of [*]
of the amount actually due, then, in addition to any other rights and remedies
available to Abbott under this Agreement, NVX shall promptly pay the reasonable
cost of such inspection after NVX's receipt of the bill or invoice for such
inspection. NVX shall be provided a copy of the audit report and shall have the
right to have its own audit conducted by a "big six" independent certified
public accounting firm with respect to the subject matter of the audit report.
In the case of any discrepancy and the Parties are unable to agree on a
resolution thereof, an independent auditor mutually agreed to by the Parties
shall be retained to conduct a final audit, the results of which shall be
binding on the Parties.

         5.10 MARKETING FEES. In addition to any other amounts paid by Abbott to
NVX, subject to Section 10.4, Abbott shall pay NVX non-refundable marketing
fees, during the term of the Agreement, as follows:

[*]

         5.11 MILESTONE PAYMENTS. In addition to the foregoing payments, subject
to Section 10.4, Abbott shall pay NVX a milestone payment of [*] Abbott shall
provide written notice to NVX of achievement of each milestone event within
thirty (30) days thereof and shall make the required payment to NVX no later
than the end of the thirty


[*] Confidential information has been omitted and filed separately with the
    Commission.

                                      -23-




<PAGE>



(30) day notice period. The foregoing milestone payments shall be added to the
Purchase Price pursuant to and for the purpose stated in Section 5.2.

         5.12 OTHER REPORTS. With respect to each Product, NVX shall provided
quarterly, written reports within thirty (30) days of the end of each quarter to
Abbott of any significant variation of [*] the reasons for such variation and,
if appropriate, the steps that NVX is taking to control or correct such
variation.

VI.      INDEMNITY

         6.1 ACTS OF ABBOTT.

                 a) Abbott shall indemnify and hold harmless NVX, NVX's
Affiliates and their respective directors, officers, employees and agents,
(collectively, the "NVX Indemnitees") from and against, any Losses incurred by
NVX Indemnitees arising out of or resulting from any Third Party claim based
upon: (i) the breach by Abbott, or any Affiliate, of any covenant,
representation or warranty contained in this Agreement, or (ii) all decisions
made by Abbott or any Affiliate pursuant to Section 2.8 or (iii) any negligent
act or omission or willful misconduct of Abbott, any Affiliate, or any Customer
of Abbott in the handling, storage, promotion, marketing, distribution or sale
of Products by Abbott, any of Abbott's Affiliates of its Customers, or any other
activity conducted by Abbott, any Affiliate under this Agreement which is the
proximate cause of injury, death or property damage to a Third Party, except to
the extent such Losses arise out of or result from the breach of this Agreement
by, or the negligence or willful misconduct of, NVX or any Affiliate.

                 b) If any claim or cause of action alleging any of the
foregoing is asserted by a Third Party against any of the NVX Indemnitees, then:
(i) NVX shall notify Abbott promptly in writing of such claim or cause of
action; (ii) Abbott shall assume, at its cost and expense, the sole defense of
such claim or cause of action through counsel selected by Abbott and reasonably
acceptable to NVX, except that in the case of a conflict of interest between
Abbott and NVX, Abbott shall, at Abbott's cost and expense, provide separate
counsel for NVX selected by NVX; (iii) Abbott shall maintain control of such
defense, including any decision as to settlement; (iv) NVX may, at its option
and expense, participate in such defense, and if NVX so participates, the
Parties shall cooperate with one another in such defense; and (v) Abbott shall
bear the total costs of any court award or settlement of such claim or cause of
action and all other costs, fees and expenses related to the resolution thereof.

         6.2 ACTS OF NVX.

                 a) NVX shall indemnify and hold harmless Abbott, Abbott's
Affiliates and their respective directors, officers, employees and agents
(collectively, the "Abbott Indemnitees") from and against, any Losses incurred
by the Abbott Indemnitees arising out of or resulting from any Third Party claim
based upon: (i) the breach by


[*] Confidential information has been omitted and filed separately with the
    Commission.

                                      -24-




<PAGE>



NVX or any Affiliate of any covenant, representation or warranty contained in
this Agreement, or (ii) any injury, death or property damage to a Third Party
resulting from the manufacture, use or sale of any Product, except to the extent
such Losses arise out of or result from the breach of this Agreement by, or the
negligence or willful misconduct of, Abbott, or any Affiliate or Customer of
Abbott, or any end-user, or arise out of or result from decisions made by Abbott
or any Affiliate pursuant to Section 2.8, or (iii) any negligent act or omission
or willful misconduct of NVX, or any Affiliate, in the manufacture, promotion,
marketing, distribution or sale of Products by NVX or any of NVX's Affiliates or
any other activity conducted by NVX or any Affiliate under this Agreement which
is the proximate cause of injury, death or property damage to a Third Party,
except to the extent such Losses arise out of or result from the breach of this
Agreement by, or the negligence or willful misconduct of, Abbott or any
Affiliate.

                 b) If any claim or cause of action alleging any of the
foregoing is asserted by a Third Party against any of the Abbott Indemnitees,
then: (i) Abbott shall notify NVX promptly in writing, of such claim or cause of
action; (ii) NVX shall assume, at its cost and expense, the sole defense of such
claim or cause of action through counsel selected by NVX and reasonably
acceptable to Abbott, except that in the case of a conflict of interest between
NVX and Abbott, NVX shall, at NVX's cost and expense, provide separate counsel
for Abbott selected by Abbott; (iii) NVX shall maintain control of such defense,
including any decision as to settlement; (iv) Abbott may, at its option and
expense, participate in such defense, and if Abbott so participates, the Parties
shall cooperate with one another in such defense; and (v) NVX shall bear the
total costs of any court award or settlement of such claim or cause of action
and all other costs, fees and expenses related to the resolution thereof.

         6.3 SETTLEMENTS. The indemnifying Party shall not settle a claim or
action related to any Losses without the consent of the indemnified Party, if
such settlement would impose any monetary or other material obligation or burden
on the indemnified Party or require the indemnified Party to submit to a
temporary restraining order or an injunction or otherwise limit the indemnified
Party's rights under this Agreement. Any payment made by the indemnifying Party
to settle any such claim or action shall be at its own cost and expense.

         6.4 LIMITATION OF LIABILITY. Except with respect to obligations of
indemnification under Section 6.1 and 6.2, with respect to any claim by one
Party against the other arising out of any breach under this Agreement, the
Parties expressly agree that the liability of the breaching Party to the
non-breaching Party for such breach shall be limited under this Agreement or
otherwise at law or equity to direct damages only and in no event shall a Party
be liable for, indirect, incidental, punitive, exemplary or consequential
damages.

VII.     PACKAGING AND LABELING

         NVX shall be solely responsible for all manufacturing, final fill,
labeling and packaging activities relating to the Products, which shall be
conducted in accordance with

                                      -25-




<PAGE>



all applicable statutory and regulatory requirements. The Parties shall jointly
be responsible for the content of the labeling and packaging materials, with all
final decisions to be made by NVX in its sole business judgment consistent with
all applicable statutory and regulatory requirements, including, without
limitation, FDA rules and regulations governing the packaging and labeling of
Products.

VIII.    TRADEMARKS AND TRADE NAMES

         8.1 TRADEMARK. The Parties shall explore and agree upon the Trademarks
to be used in connection with the Products in the Territory. [*]

         8.2 TRADEMARK USE. During the term of the Agreement, each Party and its
Affiliates shall have [*] such Trademarks solely for
the purpose of promoting, advertising, marketing, offering to sell and selling
the Products in its designated market in the Territory and for no other purpose.
Neither Party shall use or permit the use of the Trademarks outside the
Territory without the prior written consent of the other Party.

         8.3 TRADEMARK RIGHTS UPON EXPIRATION. Upon expiration of the Agreement,
the Trademarks shall be the property of Abbott, provided that NVX shall have a
royalty-free license to use such Trademarks solely with regard to continuing
promoting, advertising, marketing, offering to sell and selling of the Products
to governmental agencies in the Territory.

         8.4 TRADEMARK RIGHTS UPON TERMINATION.

                 a) [*]



[*] Confidential information has been omitted and filed separately with the
    Commission.

                                      -26-




<PAGE>





                 b)  [*] 

         8.5 TRADE NAMES. During the term of this Agreement and unless
prohibited by the responsible regulatory agency, the Parties shall not use any
trademark other than the Trademarks and shall use the trade name of Abbott or
Ross and the NVX trade name on all Products and all product labelling,
advertising and promotional material pertaining thereto in the Territory. A
legend to the effect that the Product has been manufactured by NVX and is being
sold and distributed under rights granted by NVX will be printed on the package
and product labelling for each Product. All such use of the NVX trade name, and
the Abbott and Ross tradenames, in accordance with this Agreement and applicable
law shall inure to the benefit of NVX, and Abbott and Ross, respectively.

         8.6 INFRINGEMENT OF THIRD PARTY TRADEMARK RIGHTS. Each Party shall
promptly notify the other Party of any claim of infringement by a Third Party
resulting from a Party's use of any Trademark hereunder, immediately upon such
claim of infringement becoming known, directly or indirectly. In the event of
any such Third Party notice, Abbott and NVX shall meet in good faith to address
such claim of infringement, which may include defending against such claim,
seeking a license from such Third Party or selecting a new Trademark acceptable
to both Parties to be used with the Product. If one Party in its reasonable
judgment objects to using the Trademark in question, and the other Party desires
to continue to sell Product using the Trademark in question over the objections
of the other Party, the Party continuing to use the Trademark shall indemnify
and hold the other Party harmless from any such claim of infringement with
respect to future Product sales by such Party.

         8.7 THIRD PARTY INFRINGEMENT. The Parties shall notify each other of
any apparent infringement by any Third Party of any Trademark [*] after becoming
aware thereof. In the event of an infringement of a Trademark, NVX and Abbott
shall meet to discuss possible joint prosecution and sharing of costs therefor
and any award resulting therefrom. If the Parties are unable to agree on a joint
course of action, Abbott shall have the right to enforce an action against a
Third Party infringer at its sole expense. Any judgment or award resulting from
such action undertaken by Abbott shall be retained by Abbott. In the event that
Abbott does not


[*] Confidential information has been omitted and filed separately with the
    Commission.


                                      -27-




<PAGE>



exercise its right to undertake an action against the Third Party infringer,
then NVX shall have the right to enforce an action at its expense against the
Third Party infringer and any judgment or award resulting from such action shall
be retained by NVX. The Parties shall cooperate in any action reasonably
necessary or desirable to protect or defend any Trademark used or proposed to be
used hereunder.

         8.8 OTHER MATERIALS. Each Product and all labeling, advertising and
promotional material shall feature the applicable Trademark and the Abbott
and/or Ross and NVX trade names and logos. Unless the Parties otherwise agree,
all labeling shall include the Abbott and NVX tradenames and logos, which shall
be displayed with comparable size and prominence.

         8.9 TRADEMARK OPPOSITION. Each Party, on behalf of itself and its
Affiliates, hereby consents to use of the Trademarks with respect to the Product
throughout the Territory as contemplated by this Agreement and agrees to waive,
and does hereby waive, any challenge that it or any Affiliate may have to the
use of the Trademarks by the other Party and its Affiliates with respect to the
Products in the Territory as contemplated by this Agreement.

IX.      CONFIDENTIALITY

         9.1 CONFIDENTIALITY OBLIGATIONS. Any Confidential Information of a
Party disclosed to the other Party shall, during the term of this Agreement and
for the period ending [*] be held in confidence by the receiving Party, used
only for the purposes contemplated herein and disclosed to its directors,
officers, employees and agents on a need-to-know basis only. A receiving Party
may also disclose the disclosing Party's Confidential Information to directors,
officers and employees of its Affiliates and agents, on a need-to-know basis,
provided such directors, officers, employees or consultants, as the case may be,
are bound by secrecy obligations with respect to such disclosures substantially
equivalent to those contained in this Agreement. The foregoing confidentiality
obligations shall not apply to Confidential Information which the receiving
Party can reasonably document:

                 (a) was already known by the receiving Party or is subsequently
obtained by the receiving Party without confidentiality obligation to the
disclosing Party or any Third Party,

                 (b) is independently developed by the receiving Party without
the aid, application or use of disclosures of Confidential Information of the
disclosing Party, or

                 (c) is or becomes public knowledge through no fault of the
receiving Party.

                  If a receiving Party is required by law or rules or
regulations of any governmental agency or authority or any stock exchange to
disclose Confidential


[*] Confidential information has been omitted and filed separately with the
    Commission.

                                      -28-




<PAGE>



Information of the disclosing Party, the receiving Party shall, prior to making
any such disclosure, give the disclosing Party sufficient advance written notice
to permit the disclosing Party to seek a protective order or other similar order
with respect to such information and thereafter shall disclose only the minimum
information which, in the opinion or its counsel, is required to be disclosed in
order to comply with such law, rule or regulation, whether or not a protective
order or other similar order is obtained, and to the extent possible only under
conditions of confidentiality. [*]

         9.2 PRESS RELEASES.

                 a) Either Party shall be permitted to the extent in the opinion
of its counsel it is required by law or rules or policies of any governmental
agency or authority or any stock exchange, to issue a press release describing
the arrangements set forth in this Agreement. The Party issuing a press release
shall provide an advance copy of such press release to the other Party
twenty-four (24) hours in advance of its issuance.

                 b) Except for any press release issued subject to Section
9.2(a) above, NVX shall provide Abbott with a copy of any press release
describing the arrangements set forth in this Agreement at least twenty-four
(24) hours prior to its issuance for comment and approval by Abbott. If Abbott
fails to comment within the twenty-four (24) hour period, then the press release
shall be deemed approved.

                 c) Except for any press release issued subject to Section
9.2(a) above, Abbott shall provide NVX with a courtesy copy of any press release
describing the arrangements set forth in this Agreement at least twenty-four
(24) hours prior to its issuance.


[*] Confidential information has been omitted and filed separately with the
    Commission.


                                      -29-




<PAGE>




         9.3 USE AFTER TERMINATION. Neither Party shall use any Confidential
Information of the other Party after the termination or expiration of this
Agreement with respect to any or all Products for so long as such Confidential
Information must be maintained confidential pursuant to Section 9.1.

         9.4 RETURN OF CONFIDENTIAL INFORMATION. Upon expiration or termination
of this Agreement, at the request of the disclosing Party, the receiving Party
shall promptly deliver to the disclosing Party or its nominee all Confidential
Information furnished by the disclosing Party to the receiving Party pursuant to
this Agreement and relating to the Products and all copies thereof in its or its
Affiliates' possession, except for one copy that shall be retained in its
corporate legal department so that continuing obligations may be determined, and
the receiving Party shall not thereafter make any use thereof as long as
disclosure of same would have been prohibited under Article IX hereof.

X.       TERM AND TERMINATION

         10.1 TERM. Unless sooner terminated as provided for herein, this
Agreement shall remain in full force and effect for a period commencing on the
Effective Date and expiring on the last-to-expire Valid Claim of the Patents;
provided, however, that each Party's rights and obligations, except as such
rights and obligations shall expressly survive expiration or termination as set
forth herein, with respect to each Product shall expire on the last-to-expire
Valid Claim of the Patents covering such Product, its manufacture use or sale.

         10.2 ABBOTT TERMINATION RIGHT. [*]

         10.3 CHANGE OF CONTROL OF ABBOTT OR ITS ROSS PRODUCTS DIVISION. [*]

         10.4 ACQUISITION OF NVX.

[*]


[*] Confidential information has been omitted and filed separately with the
    Commission.



                                      -30-




<PAGE>



[*]

         10.5 BREACH.

                 a) Subject to Section 10.11 and in addition to other
termination rights set forth in this Agreement, NVX shall have the right to
terminate this Agreement in the event Abbott fails to meet diligence standards
for a Product as set forth in Section 2.3, upon giving [*] prior
written notice to Abbott, provided that such failure is not cured within the
[*] notice period.

                 b) Subject to Sections 10.8 and 10.11(a), either Party shall
have the right to terminate this Agreement upon [*] prior written
notice if the




[*] Confidential information has been omitted and filed separately with the
    Commission.



                                      -31-




<PAGE>



other party commits a material breach of this Agreement and does not cure such
default within the [*] period. Termination shall be effective upon
expiration of the [*] notice period if the default is not cured.

                 c) As long as NVX is using reasonable commercial efforts to
supply products to Abbott in accordance with its orders, NVX shall not be a
material breach of this Agreement and NVX shall not be in default of this
Agreement solely because NVX fails to supply Abbott's Requirements of Products
pursuant to Section 4.1 or if NVX discontinues supply of Product(s) to Abbott
pursuant to Section 11.4(d).

                 d) [*]

         10.6 NO RELEASE. Termination of this Agreement shall not operate to
release any party from any obligation or liability incurred under the terms of
this Agreement prior to or upon termination hereof.

         10.7 BANKRUPTCY. If a Party is adjudged bankrupt, files or has filed
against it any petition under any bankruptcy, insolvency or similar law, which
petition is not dismissed within sixty (60) days, has a receiver appointed for
its business or property, or makes a general assignment for the benefit of its
creditors. This Agreement may be terminated upon written notice at the option of
the other Party. Such termination shall be made effective the date notice of
termination is given.

         10.8 FAILURE TO MAKE PAYMENTS.

                 a) Subject to Section 10.11(a), NVX shall also have the right
to terminate this Agreement if Abbott fails to make (i) any payment pursuant to
Sections 3.5, 5.10 and 5.11 at the times provided therefor or (ii) any payment
pursuant to Sections 5.1(a), 5.1(c) and 5.1(d), Section 5.2, Section 5.3 and
Section 5.6 at the times provided therefor (and after completion of the final
audit pursuant to Section 5.9(a)) and continues in default for [*] after
receiving written notice from NVX that such payment had not been made within the
time provided therefor. Termination shall be immediately effective [*]

                 b) Subject to Section 10.11(a), NVX shall have the right to
terminate this Agreement if Abbott is in default of any of its financial
obligations under this Agreement [*]


[*] Confidential information has been omitted and filed separately with the
    Commission.



                                      -32-




<PAGE>



[*] 

         10.9 OBLIGATIONS AFTER TERMINATION.

                  a) Upon termination of this Agreement by NVX pursuant to [*]
NVX shall have the right to repurchase Abbott's inventory of Product at a price
to be agreed by the Parties, [*] If the Parties are unable to reach agreement
[*] to continue selling Product in order to dispose of Abbott's inventory of
Products. During such period, Abbott shall sell the Products consistent with its
past practices. Abbott shall not take any action or fail to take any action that
would materially, detrimentally affect continued marketing, sale or distribution
of the Products by NVX or on NVX's behalf by Third Parties; [*] After the
expiration of such period, Abbott shall not sell any of Abbott's remaining
inventory of Product. After the expiration of such period, NVX shall have the
right, but not the obligation, to repurchase all or part of such inventory from
Abbott. [*]

                 b) The provisions of Sections 10.9(b)(i), 10.9(b)(ii) and
10.9(b)(iii) shall apply in the event of termination of this Agreement by NVX
pursuant to [*]

                 (i)   Abbott shall promptly deliver to NVX or its nominee all
Confidential Information furnished by NVX to Abbott pursuant to this Agreement
and relating to the Products and all copies thereof in its or its Affiliates'
possession, except


[*] Confidential information has been omitted and filed separately with the
    Commission.



                                      -33-




<PAGE>



for one copy that shall be retained in its corporate legal department so that
continuing obligations may be determined, and Abbott shall not thereafter make
any use thereof as long as disclosure of same would have been prohibited under
Article IX hereof.

                 (ii)  Abbott shall thereafter have no further rights to market,
distribute or sell the Products, except as may be expressly provided in this
Section 10.9.

                 (iii) To the extent that NVX has failed to fill a firm purchase
order of Abbott for which delivery was due prior to termination and Abbott has a
customer order that arose prior to termination to provide Product to a Third
Party that Abbott is not able to supply from its inventory, then NVX shall
supply the amount of Product to Abbott to meet its customer order.

                 c) [*]

         10.10 CONDUCT OF BUSINESS IN ANTICIPATION OF TERMINATION. After
receiving notice of termination of this Agreement by NVX and until such time as
termination is effective, Abbott shall continue to conduct its business with
respect to the Products in compliance with all the terms and conditions of this
Agreement.

         10.11 ALTERNATIVE DISPUTE RESOLUTION.

                 a) The Parties recognize that a bona fide dispute as to certain
matters may arise from time to time during the term of this Agreement which
relates to either Party's rights and/or obligations. Accordingly, the Parties
agree that, prior to sending written notice of termination as provided under
Sections 10.5 or 10.8(b), a Party first will send written notice of the dispute
to the other Party for attempted resolution by good faith negotiations between
the Presidents of NVX and Abbott's Ross Products Division within [*] after such
notice is received. Any negotiations regarding a dispute shall be treated as
settlement negotiations for the purposes of the Federal Rules of Evidence and
any similar state rules of evidence. Such negotiations shall not be admissible
in any subsequent proceeding, whether alternative dispute resolution or
litigation. If the matter has not been resolved within [*] of the notice of the
dispute, or if the Parties fail to meet within such [*]


[*] Confidential information has been omitted and filed separately with the
    Commission.



                                      -34-




<PAGE>



     [*] except as  provided  in Section  10.11(b)  below,  the Party  providing
notice shall be free to send notice of  termination as provided in Sections 10.5
and 10.8(b).

                 b) Any dispute regarding NVX's right to terminate this
Agreement pursuant to Section 10.5 or any dispute arising under Section 10.8(b),
after Abbott has timely paid [*] of the amount claimed as owing under Section
10.8(b), if not resolved in accordance with Section 10.11(a), shall be resolved
in accordance with the following alternative dispute resolution ("ADR")
procedure:

         Any negotiations regarding a dispute shall be treated as settlement
negotiations for purposes of the Federal Rules of Evidence and any similar state
rules of evidence. Such negotiations shall not be admissible in any ADR hearing.

         The Federal Rules of Civil Procedure and the Federal Rules of Evidence
shall apply. Each Party shall have the right to take as much discovery,
including, without limitation, depositions, interrogatories, requests for
admissions or production of documents, as relevant discovery statutes and rules
permit and the neutral, as described below, shall be empowered to enforce the
discovery rights to the fullest extent possible, including the imposition of
sanctions. The Parties shall have the right to be represented by counsel in the
ADR proceeding.

         1. To begin an ADR proceeding, the Party commencing the proceeding
shall provide written notice to the other Party of the issues to be resolved by
ADR.

         2. [*] following receipt of the original ADR notice, the Parties shall
select a mutually acceptable neutral to preside in the resolution of any
disputes in this ADR proceeding. The neutral shall be an individual who shall
preside over and resolve any disputes between the Parties. The neutral selected
shall be a former judge of a state or federal court and shall not be an
employee, director or shareholder of either Party or its respective Affiliates,
and shall not otherwise be in a position which, as a judge, would have
disqualifed the neutral under the provisions of 28 U.S.C. ss. 455. If the
Parties are unable to agree on a mutually acceptable neutral within such period,
the neutral shall be selected by the Center of Public Resources, New York, New
York, consistent with the foregoing sentence.

         3. [*] the neutral shall hold a hearing to resolve each of the issues
identified by the Parties. The ADR proceeding shall take place in Washington,
D.C. Each Party agrees to produce its and its Affiliate's, officers, employees
and/or agents to give depositions, and to appear at the hearing and give
testimony. The hearing shall be conducted in accordance with the Federal Rules
of Civil Procedure and the Federal Rules of Evidence.

         4. [*] each Party shall submit the following to the other Party and the
neutral:


[*] Confidential information has been omitted and filed separately with the
    Commission.


                                      -35-




<PAGE>



            (a) [*]

            (b) [*]

            (c) [*]

            (d) [*]

         5. The hearing shall be governed by the following rules:

            (a) [*]

            (b) [*]

            (c) [*]

         6. [*] each Party may submit to the other Party and the neutral a
post-hearing brief in support of its proposed rulings and remedies, provided
that such brief shall not contain or discuss any new evidence [*] This page
limitation shall apply regardless of the number of issues raised in the ADR
proceeding.

     7. The neutral  shall rule on each  disputed  issue [*] Such  ruling  shall
adopt in its entirety  the  proposed  ruling and remedy of one of the Parties on
each  disputed  issue.  The  neutral  shall  not issue any  written  opinion  or
otherwise explain the basis of the ruling.


[*] Confidential information has been omitted and filed separately with the
    Commission.



                                      -36-




<PAGE>



         8. The neutral shall be paid a reasonable fee plus expenses. Each Party
shall be responsible for its own costs and expenses in such ADR procedure and
the cost of the neutral and any common administrative expenses shall be shared
equally.

         9. The rulings of the neutral, including sanction awards, shall be
binding, non-reviewable, and non-appealable, and may be entered as a final
judgment in any court having jurisdiction.

         10. Except as provided in paragraph 9 or as required by law, the
existence of the dispute, any settlement negotiations, the ADR hearing, any
submissions (including exhibits, testimony, proposed rulings, and briefs), and
the rulings shall be deemed Confidential Information. The neutral shall have the
authority to impose sanctions for unauthorized disclosure of Confidential
Information.

         11. For the purposes of this Section 10.11(b), the Parties acknowledge
their diversity and agree to accept the jurisdiction of the Federal District
Court in the States of Maryland and Illinois for the purposes of enforcing
awards entered pursuant to this Section 10.11(b).

         12. If Abbott sues NVX relating to any matter for which NVX has a claim
for which it would have been or is obligated to utilize ADR pursuant to this
Section 10.8(b) to resolve, then NVX shall have the option to (i) counterclaim
in the action filed by Abbott, and Abbott shall not assert any objection to the
counterclaim on the basis that NVX's claim is or would have been the subject of
this Section 10.8(b), or (ii) to file its claim in ADR pursuant to the
provisions hereof. If such NVX claim is pending in an ADR at the time Abbott
files its action, then at NVX's option, the ADR shall be suspended in order to
enable NVX's claim to be asserted in the action filed by Abbott, or the pending
ADR shall be continued. NVX's joinder of its claim in any action filed by
Abbott, unless such claim is heard and adjudicated, shall not constitute a
waiver of NVX's right to reinstate the ADR or initiate an ADR with respect to
such claim.

XI.      PATENT MATTERS

         11.1 NOTICE OF INFRINGEMENT. Each Party shall act in good faith to
inform the other Party of any infringement of which it becomes aware by any
Third Party of any of the Patents relating to the Products.

         11.2 ENFORCEMENT AND DEFENSE OF PATENTS BY NVX.

                 a) NVX may, but shall not be required to, take legal action to
enforce the Patents against infringement by Third Parties and defend the Patents
against challenges by Third Parties. If NVX brings an action against a Third
Party, Abbott shall be permitted to participate in such action, and Abbott shall
share the expenses thereof upon mutually agreed terms. [*]


[*] Confidential information has been omitted and filed separately with the
    Commission.



                                      -37-




<PAGE>



[*]

                 b) Abbott shall notify NVX immediately of sales of a
Competitive Vaccine by a Third Party in the Private Pediatric Market in the
Territory which Abbott believes infringes any of the Patents. [*]

     c) If it is agreed or otherwise determined that a Third Party is infringing
any of the  Patents,  and such  infringement  is  having  or is likely to have a
material  adverse  effect on the sales by Abbott of  Product(s)  in the  Private
Pediatric  Market in the  Territory,  and NVX does not enforce the  Patent(s) in
question [*]

         11.3 CONTINUING PAYMENT OBLIGATIONS. Abbott's obligation to make any
payments required under this Agreement shall remain in effect notwithstanding
any alleged infringement of any of the Patents.

         11.4 INFRINGEMENT BY PRODUCTS.




[*] Confidential information has been omitted and filed separately with the
    Commission.



                                      -38-




<PAGE>



                 a) If any Third Party takes or threatens to take any legal
action to enforce any of its patent or other proprietary rights against alleged
infringement by a Party as a result of the manufacture, use, importation, offer
for sale or sale of a Product, then such Party shall notify the other Party
promptly in writing of such legal action. The Parties shall cooperate in the
defense of any such legal action.

                 b) [*]

                 c) [*]

                 d) [*]




[*] Confidential information has been omitted and filed separately with the
    Commission.



                                      -39-




<PAGE>





                 e) [*]

         11.5 OTHER INTELLECTUAL PROPERTY MATTERS.

                 a) [*]

                 b) [*]

         (i)   [*]

         (ii)  [*]

         (iii) [*]

         (iv)  [*]



[*] Confidential information has been omitted and filed separately with the
    Commission.



                                      -40-




<PAGE>




         (v)   [*]

         (vi)  [*]

                 (c) [*]

                 (d) [*]

XII.     MISCELLANEOUS

         12.1 RELATIONSHIP OF THE PARTIES. Nothing in this Agreement is intended
or shall be deemed to constitute a partnership, agency or joint venture
relationship between the Parties hereto.

         12.2 APPLICABLE LAW. This Agreement shall be governed by the laws of
the State of New York (regardless of the laws that might be applicable under
principles of conflicts of law) as to all matters, including but not limited to
matters of validity, arbitrability, construction, effect and performance.

         12.3 JURISDICTION. Each Party hereby submits to venue in and to the
non-exclusive personal jurisdiction of any federal or state court of competent
subject matter jurisdiction located within the State of New York in respect of
the interpretation and enforcement of the provisions of this Agreement. Each
Party waives and agrees not to assert, as a defense in any action, suit or
proceeding for the interpretation or enforcement of this Agreement, that it is
not subject to such jurisdiction; that such action, suit or proceeding may not
be brought or is not maintainable in said court; that this Agreement may not be
enforced in or by said court; that its property is exempt or immune from
execution; that such suit, action or proceeding is brought in an inconvenient
forum; or that the venue of such suit, action or proceeding is improper.

         12.4 COUNTERPARTS. This Agreement may be executed simultaneously in any
number of counterparts and may be executed by facsimile. All counterparts shall
collectively constitute one and the same Agreement.

         12.5 NOTICES. In any case where any notice or other communication is
required or permitted to be given hereunder, such notice or communication shall
be in writing and deemed to have been duly given and delivered, (a) if delivered
in person, on the date of such delivery, (b) if sent by confirmed facsimile
transmission (with answer back received), on the date of such facsimile
transmission, or (c) if sent by overnight express


[*] Confidential information has been omitted and filed separately with the
    Commission.


                                      -41-




<PAGE>



or registered or certified mail (with return receipt requested), on the date of
receipt of such mail, and shall be sent to the following address (or such other
address as a Party may designate from time to time in writing):

         If to NVX:

         North American Vaccine, Inc.
         12103 Indian Creek Court
         Beltsville, Maryland 20705

                  Telephone:        (301) 470-6100
                  Telefax:          (301) 419-0167

         Attention:        Senior Vice President - Legal Affairs and
                                    General Counsel

         If to Abbott:

         Abbott Laboratories
         Ross Products Division
         625 Cleveland Avenue
         Columbus, Ohio 43215-1724

                  Telephone:        (614) 624-3760
                  Telefax:          (614) 624-7313

                  Attention:        Director, Licensing

with a copy to:

         Abbott Laboratories
         Ross Products Division
         625 Cleveland Avenue
         Columbus, Ohio 43215-1724

                  Telephone:        (614) 624-7222
                  Telefax:          (614) 624-3074

                  Attention:        Senior Counsel

         12.6 FORCE MAJEURE. Except with respect to Abbott's obligation to make
payments to NVX on a timely basis, if any circumstance beyond the reasonable
control of either Party occurs which delays or renders impossible the
performance of that Party's obligations under this Agreement on the dates herein
provided, such obligation shall be postponed for such time as such performance
necessarily has had to be suspended or delayed on account thereof, provided such
Party shall notify the other Party in writing as

                                      -42-




<PAGE>



soon as practicable, but in no event more than thirty (30) days after the
occurrence of such force majeure. In either such event, the Parties shall meet
promptly to determine an equitable solution to the effects of any such event,
provided that either Party who fails because of force majeure to perform its
obligations hereunder will upon the cessation of the force majeure take all
reasonable steps within its power to resume with the least possible delay
compliance with its obligations. Events of force majeure shall include, without
limitation, war, revolution, invasion, insurrection, riots, mob violence,
sabotage or other civil disorders, acts of God, and newly enacted, modified,
promulgated or issued acts, laws, regulations or rules of any government or
governmental agency. It shall be considered an event of force majeure hereunder
that NVX is unable to supply Products to Abbott if NVX's suppliers fail to
provide timely or adequate supplies to NVX.

         12.7 BINDING EFFECT: ASSIGNMENT.


                 (a) This Agreement shall be binding upon and inure to the
benefit of each of the Parties hereto and its successors, subject to Section
10.3, and permitted assigns.

                 (b) NVX shall have the right to assign to any Third Party NVX's
rights to receive payment under this Agreement.

                 (c) Either Party shall have the right to assign this Agreement,
in whole or in part, without the prior written consent of the other Party, to an
Affiliate, provided that the assigning Party guarantees the performance of such
Affiliate. Otherwise, neither Party shall have the right to assign this
Agreement, in whole or in part, without the prior written consent of the other
Party.

         12.8 ENTIRE AGREEMENT. The terms and conditions herein contained,
together with the terms and conditions of the other documents attached as
Schedules hereto, constitute the entire agreement between the Parties relating
to the subject matter of this Agreement and shall supersede all previous
communications between the Parties with respect to the subject matter of this
Agreement, [*] Neither Party has entered into this Agreement in
reliance upon any representation, warranty, covenant or undertaking of the other
Party that is not set out or referred to in this Agreement.

         12.9 RECITALS AND SCHEDULES. The Recitals set forth at the start of
this Agreement along with the Schedules attached to this Agreement shall be
deemed integral parts of this Agreement and all references in this Agreement to
this Agreement shall encompass such Recitals and Schedules.

         12.10 AMENDMENT. This Agreement may be varied, amended or extended only
by the written agreement of the Parties through their duly authorized officers
or representatives, specifically referring to this Agreement.


[*] Confidential information has been omitted and filed separately with the
    Commission.

                                      -43-




<PAGE>




         12.11 SEVERABILITY. If any provision of this Agreement is held to be
illegal, invalid or unenforceable in a final, unappealable order or judgment of
a court of competent jurisdiction, then such provision shall be severed from
this Agreement and shall be rendered inoperative and replaced with a provision
which accomplishes, to the extent possible, the original business purpose of
such provision in a valid and enforceable manner; and the remaining provisions
of this Agreement shall remain binding on the Parties hereto.

         12.12 HEADINGS. The descriptive headings of the several articles and
sections of this Agreement are inserted for convenience only and do not
constitute a part of this Agreement.

         12.13 NO WAIVER OF RIGHTS. No failure or delay on the part of either
Party in the exercise of any power or right hereunder shall operate as a waiver
thereof. No single or partial exercise of any right or power hereunder shall
operate as a waiver of such right or of any other right or power. The waiver by
either Party of a breach of any provision of this Agreement shall not operate or
be construed as a waiver of any other or subsequent breach hereunder.

         12.14 USAGE. Wherever any provision of this Agreement uses the term
"including" (or "includes"), such term shall be deemed to mean "including
without limitation" and "including but not limited to" (or "includes without
limitation" and "includes but is not limited to") regardless of whether the
words "without limitation" or "but not limited to" actually follow the term
including" (or "includes").

         12.15 NO THIRD PARTY RIGHTS. This Agreement shall not be deemed or
construed in any way to result in the creation of any rights or obligations in
any Third Party.

         12.16 NO LICENSES. No rights or licenses with respect to any of NVX's
patents, trademarks, know-how, technical information, or other proprietary
rights are granted or deemed granted to Abbott hereunder or in connection
herewith.

         12.17 INTERPRETATION. This Agreement shall be interpreted and construed
as a binding agreement separate of and independent from any other agreement
between the Parties.

XIII.    ADVERSE EVENT REPORTING/CUSTOMER AND TECHNICAL
         SUPPORT

               (a) The Parties shall establish procedures for handling
complaints and adverse event reporting to ensure compliance in all respects with
applicable statutes and regulations, including but not limited to, applicable
FDA regulations contained in 21 C.F.R. Chapter 1, Subchapter F, Subpart D (21
C.F.R. ss. 600.80(a) - 600.90) and any successor thereto. Such procedures shall
be modified as appropriate to ensure compliance with any changes or
modifications in applicable statutes or regulations. For the purposes of this
Article XIII, the terms "Adverse Experience" and "Serious" shall

                                      -44-




<PAGE>



have the meanings ascribed to them in 21 C.F.R. ss. 600.80(a) and any successor
thereto. A "Non-Serious Adverse Experience" shall mean any Adverse Experience
that does not meet the criteria for a Serious Adverse Experience. Abbott shall
notify NVX promptly in writing of any Serious Adverse Experiences concerning the
Products or any Non- Serious Adverse Experiences or complaints concerning the
Products which come to its attention which may suggest significant hazards,
contraindications, side effects or precautions pertinent to the safety of the
Products or any therapeutic failure of a Product. Any Serious Adverse Experience
and all information relating thereto concerning a Product shall be immediately
notified to NVX by Abbott as soon as possible, but not later than twenty-four
(24) hours after an Abbott safety officer has become aware of such event, by
facsimile and by confirmatory telephone communication to the responsible safety
officer or a designated alternate, if such safety officer is unavailable, of
NVX. Upon signing of this Agreement, each Party shall immediately notify the
other Party in writing of its respective safety officer and alternates to whom
communications regarding adverse event reporting shall be sent.

               (b) With respect to any Non-Serious Adverse Experience, customer
complaint or therapeutic failure concerning a Product, Abbott shall as soon as
reasonably practicable and in any event within ten (10) calendar days of
becoming aware notify NVX of the occurrence and substance thereof.

               (c) NVX shall be responsible for submitting required reports to
the FDA in accordance with all applicable regulations and Abbott shall cooperate
in all respects with NVX, including but not limited to providing to NVX on a
timely basis all relevant information in Abbott's possession or control, to
permit NVX to meet such requirements.

               (d) Abbott shall provide NVX any and all information in Abbott's
possession or control that may be required by the FDA under 21 C.F.R. ss. 600.81
to allow NVX to prepare and timely file distribution reports, as such term is
defined therein, complying in all aspects with such subsection.

               (e) [*]

               (f) Abbott, at its own expense, shall be responsible for
establishing a program to provide for and coordinate customer support for each
of the Products in the Private Pediatric Market at a level reasonably calculated
to assure customer satisfaction, including establishing and implementing a
"customer-by-product" and "product-by-customer" tracking system.


[*] Confidential information has been omitted and filed separately with the
    Commission.

                                      -45-




<PAGE>



XIV.     REPRESENTATIONS AND WARRANTIES

         14.1 Each party represents and warrants to the other that:

              a) It is a corporation duly organized and validly existing under
the laws of the state or other jurisdiction of incorporation or formation;

              b) The execution, delivery and performance of this Agreement by it
has been duly authorized by all requisite corporate action;

              c) It has the power and authority to execute and deliver this
Agreement and to perform its obligations hereunder;

              d) This Agreement has been duly authorized, executed and delivered
and constitutes such party's legal, valid and binding obligation enforceable
against it in accordance with its terms subject, as to enforcement, to
bankruptcy, insolvency, reorganization and other laws of general applicability
relating to or affecting creditors' rights and to the availability of particular
remedies under general equity principles;

              e) It shall comply with all applicable laws and regulations
relating to its activities under this Agreement.

XV.      SURVIVAL

         15.1 The provisions of Sections 5.4, 5.6, 5.9, 8.3, 8.4, 12.2, 12.3,
and 12.5 and Articles VI, IX, X, XIV, XV and XVI shall survive the termination
or expiration of this Agreement (as the case may be) and shall remain in full
force and effect.

         15.2 The provisions of this Agreement which do not survive termination
or expiration hereof (as the case may be) shall, nonetheless, be used in
construing and interpreting the rights and obligations of the parties hereto
with regard to any dispute, controversy or claim which may arise under this
Agreement.



                                      -46-




<PAGE>



         IN WITNESS WHEREOF, this Agreement has been executed by the authorized
representatives of the parties.


ABBOTT LABORATORIES                         NORTH AMERICAN VACCINE, INC.


By: /s/ Thomas M. McNally                      By: /s/ Sharon Mates
    -------------------------------                ---------------------------
Title: Thomas M. McNally                       Title: Sharon Mates, Ph.D.
       Senior Vice President                          President
       Abbott Laboratories   

Date: October 11, 1996                         Date: October 11, 1996





                            STOCK PURCHASE AGREEMENT


         STOCK PURCHASE AGREEMENT ("Agreement"), dated as of October 11, 1996,
between North American Vaccine, Inc., a company organized under the laws of
Canada ("Company"), and Abbott Laboratories, an Illinois corporation
("Acquiror").

         This Agreement sets forth the terms and conditions upon which the
Company is selling to Acquiror, and Acquiror is purchasing from the Company,
350,000 common shares, no par value, of the Company ("Shares").

         In consideration of the mutual agreements contained herein, and
intending to be legally bound hereby, the parties hereto agree as follows:

                                   ARTICLE I.
                         PURCHASE AND SALE OF THE SHARES

         1.1 PURCHASE AND SALE OF THE SHARES. Subject to the terms and
conditions of this Agreement, the Company hereby sells and delivers to Acquiror,
and Acquiror hereby purchases and accepts from the Company, the Shares free and
clear of all mortgages, liens, pledges, security interests, encumbrances,
pre-emptive rights or other third party interests of any nature whatsoever.

         1.2 CONSIDERATION. Subject to the terms and conditions of this
Agreement, in reliance on the representations, warranties and agreements of the
Company contained herein, and in consideration of the delivery of the stock
certificates representing the Shares, the Acquiror hereby pays to the Company
$6,343,750 in immediately available funds, as full payment and consideration for
the purchase of the Shares.

         1.3 CLOSING. The Closing of the transactions contemplated by this
Agreement will occur at the offices of the Company located at Beltsville,
Maryland on the date hereof ("Closing Date").

                  1.3.1 At the Closing, the Company will deliver to the Acquiror
         a stock certificate or certificates representing the Shares with a
         restricted stock legend set forth thereon; and an opinion of counsel to
         the effect that the Shares have been duly and validly issued and are
         fully paid and non-assessable. The restricted stock legend shall read
         substantially as follows:

                  The shares evidenced by this certificate may not be offered or
                  sold, transferred, pledged, hypothecated or otherwise disposed
                  of except: (i) pursuant to an effective registration statement
                  under the Securities Act of 1933, as amended, (ii) to the
                  extent applicable, Rule 144 under the Act (or any similar rule
                  under such Act relating to the disposition of



<PAGE>



                  securities), or (iii) if, in the opinion of counsel to the
                  corporation, an exemption from registration under such Act is
                  available.

                  1.3.2 At the Closing, Acquiror will deliver by check or wire
         transfer, at the election of the Company, $6,343,750 in immediately
         available funds.


                                   ARTICLE II.
                  REPRESENTATIONS AND WARRANTIES OF THE COMPANY

         The Company hereby represents and warrants to Acquiror as follows:

         2.1 CORPORATE STATUS; AUTHORITY. The Company is a corporation duly
organized, validly existing and in good standing under the laws of its
jurisdiction of organization, and has all requisite power and authority to
execute, deliver and perform this Agreement, to consummate the transactions
contemplated hereby and otherwise to carry out its obligations hereunder. The
execution, delivery and performance of this Agreement and the consummation of
the transactions contemplated hereby have been duly authorized by all necessary
corporate action on the part of the Company.

         2.2 BINDING AGREEMENT. This Agreement constitutes the valid and binding
agreement of the Company, enforceable in accordance with its terms (subject, as
to the enforcement of remedies, to general equitable principles and to
bankruptcy, insolvency and similar laws affecting creditors' rights generally).

         2.3 NON-CONTRAVENTION; CONSENTS. The execution, delivery and
performance of this Agreement by the Company, does not, and the consummation by
the Company of the transactions contemplated hereby does not and will not,
constitute or result in (with or without the giving of notice or the lapse of
time or both) (A) a breach or violation of any provision of the articles of
incorporation, as amended to date, or by-laws, as amended to date, of the
Company, or (B) a breach or violation of, or a conflict with, or a default
under, or termination of, or an event permitting any other person to terminate,
or the acceleration of, or the creation or imposition of any lien, charge,
pledge, security interest or other encumbrance on any properties or assets of
the Company pursuant to (i) any provision of any contract, license or other
agreement binding upon the Company, or (ii) any law, rule, writ, injunction,
decree, regulation, treaty, ordinance or order, award or governmental permit or
license applicable to the Company, which violation, breach, default, termination
or acceleration would, individually or in the aggregate, have a material adverse
effect on the business, financial condition, results of operations, or business
prospects of the Company.



                                      - 2 -

<PAGE>



         2.4  REPORTS.

                       (i) As of their respective dates, neither the Company's
Annual Report on Form 10-K for the fiscal year ended December 31, 1995, nor any
other document filed subsequent to December 31, 1995 (including, without
limitation, the Company's Quarterly Reports on Form 10-Q for the quarters ended
March 31, 1996 and June 30, 1996) under Section 13(a), 13(c), 14 or 15(d) of the
Securities Exchange Act of 1934, as amended, with the Securities and Exchange
Commission (the "SEC"), (collectively the "Reports"), contained any untrue
statement of a material fact or omitted to state a material fact required to b
stated therein or necessary to make the statements made therein, in light of the
circumstances under which they were made, not misleading. Each of the balance
sheets contained or incorporated by reference in the Reports (including in each
case any related notes and schedules) fairly presented, the financial position
of the entity or entities to which it relates as of its date and each of the
statements of operation, statements of cash flows and statements of
stockholders' equity, contained or incorporated by reference in the Reports
(including in each case any related notes and schedules), fairly presented, the
results of operations, stockholders' equity and cash flows, as the case may be,
of the entity or entities to which it relates for the periods set forth therein
(subject, in the case of unaudited interim statements, to normal year-end audit
adjustments that are not material in amount or effect), in each case in
accordance with generally accepted accounting principles consistently applied
during the periods involved, except as may be noted therein.

                       (ii) The Company has timely filed all reports,
registrations and statements, together with any amendments required to be made
with respect thereto, that it was required to file since December 31, 1995 with
the SEC.

         2.5 ABSENCE OF CERTAIN CHANGES OR EVENTS. Except as disclosed in the
Company's Reports, since December 31, 1995, there has not been any:

         (a) change in the financial condition, assets, liabilities, properties,
business or results of operations of the Company which, individually or in the
aggregate, has resulted or could result in a materially adverse effect;

         (b) event or condition of any type that has resulted or could result in
a materially adverse effect on the financial condition, assets, liabilities,
properties, business or results of operations of the Company.

         2.6 COMPLIANCE. Except as disclosed in the Company's Reports, the
Company is not in violation of its Certificate of Incorporation, Bylaws or any
laws, ordinances and regulations or other governmental restrictions, orders,
judgments or decrees, where any such violation (a) would impair or restrict the
Company's power or authority to issue and deliver the Shares as required by this
Agreement, (b) of such Certificate of Incorporation or Bylaws has or would have
a material adverse effect on the financial condition, assets, liabilities,
properties, business, or results of operations of the Company, or (c) is based
upon facts of which the Company is aware and where such violation has or would


                                      - 3 -

<PAGE>



have a material adverse effect on the financial condition, assets, liabilities,
properties, business or results of operations of the Company.

         2.7 LITIGATION. Except as disclosed in the Company's Reports, there is
no action, suit, proceeding or investigation pending or currently threatened
against the Company, which singly or in the aggregate, if the subject of an
unfavorable decision, ruling or finding, would materially adversely affect the
financial condition, assets, liabilities, properties, business, or results of
operations of the Company.

         2.8 DELIVERY OF SHARES. The Shares are duly authorized, validly issued,
fully paid and non assessable. The sale of such Shares has not been registered
under the Securities Act of 1933, as amended ("1933 Act"). Such Shares have been
listed for trading on the American Stock Exchange, subject to official notice of
issuance.

                                  ARTICLE III.
                   REPRESENTATIONS AND WARRANTIES OF ACQUIROR

         Acquiror represents and warrants to the Company as follows:

         3.1 CORPORATE STATUS; AUTHORITY. The Acquiror is a corporation duly
organized, validly existing and in good standing under the laws of its
jurisdiction of organization, and has all requisite power and authority to
execute, deliver and perform this Agreement, to consummate the transactions
contemplated hereby and otherwise to carry out its obligations hereunder. The
execution, delivery and performance of this Agreement and the consummation of
the transactions contemplated hereby have been duly authorized by all necessary
corporate action on the part of the Acquiror.

         3.2 BINDING AGREEMENT. This Agreement constitutes the valid and binding
agreement of the Acquiror, enforceable in accordance with its terms (subject, as
to the enforcement of remedies, to general equitable principles and to
bankruptcy, insolvency and similar laws affecting creditors' rights generally).

         3.3 NON-CONTRAVENTION; CONSENTS. The execution, delivery and
performance of this Agreement by the Acquiror, does not, and the consummation by
the Acquiror of the transactions contemplated hereby does not and will not,
constitute or result in (with or without the giving of notice or the lapse of
time or both) (A) a breach or violation of any provision of the articles of
incorporation, as amended to date, or by-laws, as amended to date, of the
Acquiror, or (B) a breach or violation of, or a conflict with, or a default
under, or termination of, or an event permitting any other person to terminate,
or the acceleration of, or the creation or imposition of any lien, charge,
pledge, security interest or other encumbrance on any properties or assets of
the Acquiror pursuant to (i) any provision of any contract, license or other
agreement binding upon the Acquiror, or (ii) any law, rule, writ, injunction,
decree, regulation, treaty, ordinance or order, award or governmental permit or
license applicable to the Acquiror, which violation, breach, default,
termination or acceleration would, individually or in the aggregate, have a

                                      - 4 -

<PAGE>



material adverse effect on the business, financial condition, results of
operations, or business prospects of the Acquiror.

         3.4 SECURITIES REPRESENTATIONS. Acquiror has received and reviewed a
copy of the Reports. Acquiror understands that the sale of the Shares has not
been registered under the 1933 Act. Acquiror further represents that it (a) has
such knowledge, sophistication and experience in business and financial matters
that it is capable of evaluating the merits and risks of an investment in the
Shares, (b) is acquiring the Shares for investment and fully understands the
nature, scope and duration of the limitations on transfer imposed by the
securities laws and (c) can bear the economic risk of investment in the Shares
and can afford a complete loss of such investment. Acquiror has had an adequate
opportunity to ask questions and receive answers (and has asked such questions
and received answers to its satisfaction) from the officers of the Company
concerning the business, operations and financial condition of the Company.
Acquiror has no contract, undertaking, agreement or arrangement, written or
oral, with any other person to transfer or grant participations in any Shares.
Acquiror acknowledges and agrees that the Company has no obligation to register
the resale of the Shares under the securities laws.


                                   ARTICLE IV.
                               GENERAL PROVISIONS

         The Company and Acquiror further covenant and agree as follows:

         4.1 WAIVER OF TERMS. Any of the terms or conditions of this Agreement
may be waived at any time by the party or parties entitled to the benefit
thereof but only by a written instrument signed by the party or parties waiving
such terms or conditions.

         4.2 AMENDMENT OF AGREEMENT. This Agreement may be amended, supplemented
or interpreted at any time only by written instrument duly executed by each
party hereto.

         4.3 PAYMENT OF EXPENSES. The Company shall pay all expenses incurred by
or on its behalf, and Acquiror shall pay all expenses incurred by or on its
behalf in connection with the preparation, execution and delivery of this
Agreement and the consummation of the transactions contemplated hereby
(including without limitation, the reasonable fees, disbursements and expenses
of their attorneys, accountants and advisors).

         4.4 CONTENTS OF AGREEMENT; BINDING NATURE. This Agreement sets forth
the entire understanding of the parties with respect to the subject matter
hereof. Any previous agreements or understandings between the parties regarding
such subject matter are superseded by this Agreement. All representations,
warranties, covenants, terms and conditions of this Agreement shall be binding
upon and inure to the benefit of and be enforceable by the successors and
assigns of the parties hereto.


                                      - 5 -

<PAGE>



         4.5 NOTICES. All notices, requests, demands and other communications
required or permitted to be given hereunder shall be by hand-delivery, certified
or registered mail, return receipt requested; telecopier, or air courier to the
parties set forth below. Such notices shall be deemed given at the time
personally delivered, if delivered by hand or by courier; at the time received
if sent certified or registered mail; and when receipt acknowledged by receiving
telecopy equipment if telecopied.

         If to Company:                     North American Vaccine, Inc.
                                            12103 Indian Creek Court
                                            Beltsville, MD  20705

         If to Acquiror:                    Abbott Laboratories
                                            Ross Products Division
                                            625 Cleveland Avenue
                                            Columbus, OH  43215

         4.6 COMMISSIONS AND FINDER'S FEES. Each party represents and warrants
that none of them has retained or used the services of any individual, firm or
corporation in such manner as to entitle such individual, firm or corporation to
any compensation for brokers' or finders' fees with respect to the transactions
contemplated by this Agreement for which the other may be liable.

         4.7 SEVERABILITY. In the event that any one or more of the provisions
contained in this Agreement shall be invalid, illegal or unenforceable in any
respect for any reason, the validity, legality and enforceability of any such
provision in every other respect and of the remaining provisions of this
Agreement shall not be in any way impaired.

         4.8 COUNTERPARTS. This Agreement may be executed in two or more
counterparts, each of which shall be deemed an original, but all of which
together shall constitute one and the same instrument.

         4.9 GOVERNING LAW; JURISDICTION. This Agreement shall be governed,
construed and enforced in accordance with the internal laws of the State of
Delaware, excluding any choice of law rules that may direct the application of
the laws of another jurisdiction. Each party hereto hereby irrevocably consents
and submits to the jurisdiction of and the service of process from courts
sitting in Delaware for any and all actions arising out of or related to this
Agreement.

         4.10 NO THIRD PARTY BENEFICIARIES. Nothing in this Agreement is
intended nor shall it be construed to give any person, firm, corporation or
other entity, other than the parties hereto and their respective successors and
assigns, any right, remedy or claim under or in respect of this Agreement or any
provisions hereof.

         4.11 SURVIVAL OF WARRANTIES. The warranties, representations and
covenants of the Company and Acquiror contained in this Agreement shall survive
the execution and delivery of this Agreement and the Closing for a period of two
years and shall in no way be affected by any investigation of the subject matter
thereof made by or on behalf of the Acquiror or the Company.

                                      - 6 -

<PAGE>



         IN WITNESS WHEREOF, this Agreement has been duly executed by the
parties hereto as of the day and year first above written.

                                        NORTH AMERICAN VACCINE, INC.


                                        By: /S/ SHARON MATES
                                            -------------------------
                                            Name: Sharon Mates, Ph.D.
                                            Title: President

                                        ABBOTT LABORATORIES

                                        By: /S/ THOMAS M. MCNALLY
                                            ----------------------------
                                            Name: Thomas M. McNally
                                            Title: Senior Vice President
                                                   Ross Products Division


                                      - 7 -



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









                            ASSETS PURCHASE AGREEMENT

                          DATED AS OF OCTOBER 17, 1996,

                                      AMONG

                       CEPHALON PROPERTY MANAGEMENT, INC.

                                       AND

                                 CEPHALON, INC.

                                       AND

                          NORTH AMERICAN VACCINE, INC.







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



<PAGE>


<TABLE>
<CAPTION>

                                TABLE OF CONTENTS
         <S>                                                                                                   <C>

                                                                                                               PAGE

         ARTICLE 1  -  PURCHASE AND SALE..........................................................................1
                  1.1      Agreement to Sell......................................................................1
                  1.2      Agreement to Purchase..................................................................3
                  1.3      The Purchase Price.....................................................................3
                           (a)      Purchase Price................................................................3
                           (b)      Payment of Purchase Price.  ..................................................3
                           (c)      Adjustments to Purchase Price.................................................3
                           (d)      Adjustment for Pre-Closing Inspection.........................................4
                           (e)      Injunctive Relief; Specific Performance.......................................4
                  1.4      Assumption of Liabilities..............................................................4

         ARTICLE 2  -  CLOSING, ITEMS TO BE DELIVERED, THIRD PARTY CONSENTS,
                  CHANGE IN NAME AND FURTHER ASSURANCES...........................................................5
                  2.1      Closing................................................................................5
                  2.2      Items to be Delivered at Closing.......................................................5
                  2.3      Third Party Consents...................................................................7
                  2.4      Further Assurances.....................................................................7

         ARTICLE 3  -  REPRESENTATIONS AND WARRANTIES.............................................................8
                  3.1      Representations and Warranties of the Seller...........................................8
                           (a)      Corporate Existence...........................................................8
                           (b)      Corporate Power; Authorization; Enforceable Obligations.......................8
                           (c)      Validity of Contemplated Transactions, etc....................................8
                           (d)      All Tangible Purchased Assets.................................................9
                           (e)      Title to Purchased Assets.....................................................9
                           (f)      Compliance with Law; Authorizations...........................................9
                           (g)      Litigation....................................................................9
                           (h)      Contracts and Commitments.....................................................9
                           (i)      Intellectual Property, Violations, etc.......................................11
                           (j)      Purchased Assets.............................................................11
                           (k)      Tax Returns..................................................................11
                           (l)      Insurance....................................................................11
                           (m)      Condition of Assets..........................................................11
                           (n)      FDA Matters..................................................................11
                           (o)      WARN ACT.....................................................................12
                           (p)      Environmental Matters........................................................12
                           (q)      No Other Warranties..........................................................13
                           (r)      Facilities Leases and Equipment Leases.......................................14
                           (s)      "Knowledge of the Seller and Cephalon".......................................14
                  3.2      Representations and Warranties of the Purchaser.......................................14
                           (a)      Corporate Existence..........................................................14
                           (b)      Corporate Power and Authorization............................................14
                           (c)      Validity of Contemplated Transactions, etc...................................14
                           (d)      Investigation and Evaluation.................................................15
                  3.3  Survival of Representations and Warranties................................................15


<PAGE>




         ARTICLE 4 - AGREEMENTS PENDING CLOSING..................................................................15
                  4.1      Agreements of the Seller Pending the Closing..........................................15
                  4.2      Agreements of the Purchaser Pending the Closing.......................................17
                  4.3      Access................................................................................17
                  4.4      Press Releases........................................................................17

         ARTICLE 5  -  CONDITIONS PRECEDENT TO THE CLOSING.......................................................18
                  5.1      Conditions Precedent to the Purchaser's Obligations...................................18
                           (a)      Representations, Warranties and Covenants of the Seller......................18
                           (b)      Injunctions, etc.............................................................18
                           (c)      Consents and Approvals.......................................................18
                           (d)      Destruction of the Purchased Assets..........................................18
                  5.2      Conditions Precedent to the Seller's  and Cephalon's Obligations......................19
                           (a)      Representations, Warranties and Covenants of the Purchaser...................19
                           (b)      Injunctions, etc.............................................................19
                           (c)      Consents and Approvals.......................................................19

         ARTICLE 6  -  POST-CLOSING MATTERS......................................................................19
                  6.1      Employee Arrangements.................................................................19
                  6.2      Discharge of Certain Liabilities......................................................19
                  6.3      Maintenance of Books and Records......................................................20
                  6.4      Restriction on Use of Name............................................................20
                  6.5      Sublicense............................................................................20

         ARTICLE 7  -  INDEMNIFICATION...........................................................................20
                  7.1      Indemnification Obligations...........................................................20
                  7.2      Method of Asserting Claims, Etc.......................................................21
                  7.3      Payment...............................................................................22

         ARTICLE 8  -  MISCELLANEOUS.............................................................................23
                  8.1      Termination...........................................................................23
                  8.2      Compliance with Bulk Sales Laws.......................................................23
                  8.3      Brokerage; Expenses; Etc..............................................................24
                  8.4      Contents of Agreement; Amendment; Parties in Interest, Assignment, Etc................24
                  8.5      Confidentiality.......................................................................24
                  8.6      Notices...............................................................................25
                  8.7      Maryland Law to Govern................................................................26
                  8.8      No Benefit to Others..................................................................26
                  8.9      Headings, Gender and "Person..........................................................26
                  8.10     Schedules and Exhibits................................................................26
                  8.11     Severability..........................................................................26
                  8.12     Counterparts..........................................................................26

</TABLE>

                                      -ii-
<PAGE>


                             INDEX OF DEFINED TERMS


         Assets.................................................  1
         Assumed Liabilities......................................4
         Authorization............................................9
         Beltsville Assets........................................1
         Cephalon.................................................1
         CGMP....................................................11
         Claim Notice............................................22
         Closing..................................................5
         Closing Date.............................................5
         Code.....................................................6
         Environmental Laws......................................13
         Equipment Leases.........................................2
         Excluded Assets..........................................2
         Facilities Leases........................................1
         FDA.....................................................11
         Hazardous Substances....................................13
         HSR......................................................9
         Leased Assets............................................2
         Notice Period...........................................22
         Purchased Assets.........................................1
         Purchase Price...........................................3
         Purchaser's Documents...................................14
         Seller...................................................1
         Seller's Documents.......................................8
         Tax.....................................................11
         Taxes...................................................11
         WARN Act................................................12






                                     -iii-
<PAGE>



                            ASSETS PURCHASE AGREEMENT


         This ASSETS  PURCHASE  AGREEMENT is made and entered into as of October
17,  1996,  by  and  among  CEPHALON  PROPERTY  MANAGEMENT,   INC.,  a  Delaware
corporation (the "SELLER"),  CEPHALON, INC., a Delaware corporation ("CEPHALON")
and NORTH AMERICAN VACCINE, INC., a Canadian corporation (the "PURCHASER"), with
reference to the following Preamble:

         The Seller  leases  certain  facilities  at 9000  Virginia  Manor Road,
         Suites  260,  270,  280  and  290,  Beltsville,   Maryland  20705  (the
         "FACILITIES")  and  the  Seller  and  Cephalon  have  acquired  certain
         equipment,  materials and other assets for the production of biological
         pharmaceutical  compounds at the Facilities (the "BELTSVILLE  ASSETS").
         The Purchaser desires to purchase and the Seller and Cephalon desire to
         sell the  Purchased  Assets  (hereinafter  defined) in exchange for the
         payment by the Purchaser of the Purchase  Price  (hereinafter  defined)
         and  the  assumption  by  the  Purchaser  of  the  Assumed  Liabilities
         (hereinafter  defined),  all on the terms and  conditions  described in
         this Agreement.

         NOW, THEREFORE,  in consideration of the Preamble and of the respective
covenants,  representations,  warranties and agreements  herein  contained,  and
intending  to be legally  bound  hereby,  the  parties  hereto  hereby  agree as
follows:


                          ARTICLE 1 - PURCHASE AND SALE

         1.1      AGREEMENT TO SELL.

                  (a) At the  Closing  hereunder  (as  defined  in  SECTION  2.1
hereof) and except as  otherwise  provided in this  SECTION  1.1, the Seller and
Cephalon, as applicable, shall grant, sell, convey, assign, transfer and deliver
to the  Purchaser,  upon  and  subject  to the  terms  and  conditions  of  this
Agreement,  all  right,  title and  interest  of the  Seller  and  Cephalon,  as
applicable,  in and to all  assets,  properties  and  rights of the  Seller  and
Cephalon,  as applicable,  described below (which assets,  properties and rights
are herein sometimes called the "PURCHASED ASSETS"):

                      (i) all of the  Seller's  rights  under the leases for the
         Facilities  dated March 20,  1992,  November  12, 1991 and December 28,
         1990, as each such Lease was assumed by the Seller on December 14, 1992
         and  amended on such date,  copies of which are as  attached  hereto as
         EXHIBIT A (collectively,  the "FACILITIES  LEASES")  including security
         deposits and all credits or refunds payable thereunder;

                      (ii)   all   equipment,   machinery,   furniture,   office
         furnishings,  leasehold improvements,  fixtures,  computer hardware and
         systems  (exclusive of data and software) and other  tangible  personal
         property located at the Facilities,  including without limitation those
         items specified in SCHEDULE  1.1(A)(II) hereto,  except for those items
         leased pursuant to the Equipment Leases (defined below) by Cephalon;


<PAGE>




                      (iii) all of Cephalon's  right,  title and interest in and
         to the Master Lease  Agreement dated as of February 1, 1994, as amended
         by and between Cephalon and General Electric Credit Corporation, copies
         of which are attached hereto as EXHIBIT B (the  "EQUIPMENT  LEASES") to
         the  extent  such  Equipment  Leases  relate  to the  assets  listed on
         SCHEDULE 1.1(A)(III) (the "Leased Assets");

                      (iv)  all  rights of the  Seller  and  Cephalon  under the
         contracts,  agreements,  leases, or arrangements  specified in SCHEDULE
         1.1(A)(IV);

                      (v)   all  prepaid  expenses,  refunds,  causes of action,
         rights of setoff and  recoupment  arising from or relating to the other
         Purchased Assets or the Leased Assets;

                      (vi)  all of the Seller's and Cephalon's right,  title and
         interest in and to all facility and construction drawings,  engineering
         reports and drawings,  facility  licenses and permits,  guaranties  and
         warranties  relating to the other Purchased Assets or the Leased Assets
         and all other  documentation and records  associated with the operation
         of the other Purchased Assets or the Leased Assets; and

                      (viii)all  office  and  other  supplies  and a copy of all
         validation   protocols,   validation   records   and  other   operating
         information  in the possession of the Seller or Cephalon and related to
         the use and maintenance of the Purchased Assets or the Leased Assets.

                  (b) Notwithstanding the foregoing,  the Purchased Assets shall
not include any of the following (the "EXCLUDED ASSETS"):

                      (i)   all lease agreements for real and personal  property
         (other than the  Facilities  Leases and the  Equipment  Leases) and all
         service agreements or executory  contracts related to the Facilities or
         the  Beltsville  Assets,  other  than  those  agreements  specified  in
         SCHEDULE 1.1(A)(IV);

                      (ii)  all cash on hand or in bank accounts;

                      (iii) the corporate seals,  certificates of incorporation,
         minute  books,  stock  books,  tax  returns,  books of account or other
         records having to do with corporate organization of the Seller;

                      (iv)  the rights which accrue or will accrue to the Seller
         under this Agreement;

                      (v)   the rights to the  Seller's  claims for any federal,
         state,  local,  or foreign  tax  refunds or any tax  attributes  of the
         Seller, including without limitation any net operating loss forwards;

                      (vi)  all raw  materials,  work-in-progress,  supplies and
         other inventories located at the Facilities;

                                       -2-

<PAGE>




                      (vii) all  right,  title and  interest  in and to the name
         "Cephalon"; and

                      (viii)any batch  records  or other  regulatory  files or
         notebooks  specifically  related to the  products  manufactured  by the
         Seller.

                  (c) The assets shall be sold, transferred,  assigned, conveyed
and delivered to the  Purchaser  free and clear of all liens,  claims,  charges,
options, pledges and encumbrances of any kind.

         1.2      AGREEMENT   TO  PURCHASE.   At  the  Closing   hereunder,  the
Purchaser shall purchase the Purchased Assets from the Seller and Cephalon, upon
and subject to the terms and conditions of this Agreement and in reliance on the
representations,  warranties and covenants of the Seller and Cephalon  contained
herein,  in exchange for the Purchase Price (defined in SECTION 1.3 hereof).  In
addition,  the Purchaser shall assume at the Closing and agree to pay, discharge
or perform,  as appropriate,  certain  liabilities and obligations of the Seller
and  Cephalon to the extent and as  provided  in SECTION 1.4 of this  Agreement.
Except as  specifically  provided in this  Agreement,  the  Purchaser  shall not
assume or be  responsible  for any  liabilities  or obligations of the Seller or
Cephalon.

         1.3      THE PURCHASE PRICE.

                  (a) PURCHASE PRICE.  The "PURCHASE  PRICE" shall be payable in
United  States  dollars  and shall be an amount  equal to  $24,863,973  less the
agreed value of the  liabilities  assumed by the  Purchaser  under the Equipment
Leases as set forth on Schedule 1.3(a) hereto.

                  (b)  PAYMENT OF  PURCHASE  PRICE.  On the  Closing  Date,  the
Purchaser shall pay to the Seller the Purchase  Price,  as adjusted  pursuant to
SECTIONS  1.3(C) and 1.3(D)  hereof,  payable by wire  transfer  of  immediately
available funds to such account as the Seller shall designate.

                  (c) ADJUSTMENTS TO PURCHASE PRICE. [*]



[*] Confidential information has been omitted and filed separately with the
    Commission.




                                       -3-

<PAGE>




 

                  (d) ADJUSTMENT OF PURCHASE  PRICE.  If, prior to the Closing,
the Purchaser and the Seller  determine  that the  representations  set forth in
SECTION 3.1(D) or SECTION  3.1(E) hereof are not true and correct,  the Purchase
Price shall be reduced by an amount equal to the Seller's  historical  cost,  as
set forth in SCHEDULES  1.1(A)(II)  and  1.1(A)(III)  hereto,  of the  Purchased
Assets that do not satisfy either of such representations.

                  (e) [*]




         1.4 ASSUMPTION OF LIABILITIES.  At the Closing  hereunder and except as
otherwise  specifically provided in this SECTION 1.4, the Purchaser shall assume
and  agree  to  pay,  discharge  or  perform,  as  appropriate,   the  following
liabilities   and   obligations   of  the  Seller  and  Cephalon  (the  "ASSUMED
LIABILITIES"):

             (a) all obligations of the Seller or Cephalon, as applicable, under
the  contracts,   agreements,  leases  or  arrangements  specified  in  Schedule
1.1(a)(iv) to be performed at or after the Closing Date;

             (b) all obligations of the Seller, if any, accruing at or after the
Closing Date under the Facilities Leases;

             (c) all obligations of Cephalon,  if any,  accruing at or after the
Closing Date under the Equipment  Leases to the extent the Purchaser has assumed
such Equipment Leases; and

             (d) sales and use tax liability  resulting from the sale or arising
after the sale of the Purchased  Assets  regardless of which party hereto may be
deemed by law to bear responsibility for payment of such taxes.

In no event,  however,  shall the  Purchaser  assume or incur any  liability  or
obligation  under  this  SECTION  1.4  or  otherwise  in  respect  of any of the
following:


[*] Confidential information has been omitted and filed separately with the
    Commission.

                                       -4-

<PAGE>




                 (i)   any  federal,   state  or  local  income  taxes  charged,
         assessed  or payable  by the  Seller  (or any member of any  affiliated
         group of which the Seller is a member),  including  without  limitation
         such  income  taxes  incident  to or  arising as a  consequence  of the
         negotiation  or  consummation  by the  Seller  (or  any  member  of any
         affiliated group of which the Seller is a member) of this Agreement and
         the transactions contemplated hereby;

                 (ii)  any  sales,  use,  excise,  franchise,  personal  or real
         property  taxes or any  similar  taxes,  fees or  governmental  charges
         attributable to events or periods prior to the Closing Date;

                 (iii) any  liability or  obligation  arising from or related to
         the  Excluded  Assets or any events,  acts or  omissions  by the Seller
         prior  to the  Closing  Date  (other  than  the  Assumed  Liabilities),
         including without limitation,  any liability or obligation arising from
         or related to the  environmental  condition of the Facilities  prior to
         the Closing Date; or

                 (iv)  any liability or  obligation  related to any employees of
         the Seller, or under any benefit arrangement of the Seller with respect
         thereto,  including without limitation, all liabilities for pay, wages,
         salaries,  unemployment compensation and insurance,  employee benefits,
         and contributions to employee benefit plans, however classified.


             ARTICLE 2 - CLOSING, ITEMS TO BE DELIVERED, THIRD PARTY
                 CONSENTS, CHANGE IN NAME AND FURTHER ASSURANCES

         2.1 CLOSING.  The consummation of the transactions  contemplated hereby
(the "CLOSING")  shall take place at 10:00 A.M., local time, on November 1, 1996
or the second  business day following the  satisfaction  or waiver of all of the
conditions  precedent of each of the parties hereto  required to be satisfied on
or prior to the Closing or on such other date as may be mutually  agreed upon in
writing by the  Purchaser  and the  Seller.  The date on which the  transactions
contemplated  herein are  consummated  is  sometimes  herein  referred to as the
"CLOSING  DATE." The Closing shall take place at the offices of Arnold & Porter,
Thurman Arnold Building, 555 12th Street, N.W., Washington, D.C. 20004.

         2.2 ITEMS TO BE DELIVERED AT  CLOSING.  At  the Closing  and subject to
the terms and conditions herein contained:

             (a) The Seller and Cephalon,  as  applicable,  shall deliver to the
Purchaser:

                 (i) such bills of sale,  assignments,  endorsements,  and other
         good  and  sufficient  instruments  and  documents  of  conveyance  and
         transfer as shall be necessary or appropriate to transfer and assign to
         the  Purchaser  all of the Seller's  and  Cephalon's  right,  title and
         interest in and to the Purchased Assets in form reasonably satisfactory
         to the Purchaser and its counsel;


                                       -5-

<PAGE>



                 (ii) an assignment of the Facilities Leases;

                 (iii) an  assignment  of the  Equipment  Leases  to the  extent
         provided in SECTION 1.1(A)(III);

                 (iv)  certificates  of good  standing  of the  Seller  from the
         Maryland  Department of Assessments  and Taxation and of the Seller and
         Cephalon from the Delaware  Secretary of State,  in each case dated not
         more than 30 days prior to the Closing;

                 (v) an affidavit of the Seller  certifying,  under penalties of
         perjury,  that the Seller is not a "foreign  person" within the meaning
         of section 1445 of the Internal  Revenue Code of 1986,  as amended (the
         "CODE");

                 (vi)  certificates  of the  President of each of the Seller and
         Cephalon and the Chief  Financial  Officer of Cephalon  certifying  the
         matters set forth in SECTION 5.1(A) hereof;

                 (vii) a legal  opinion of the Seller's and  Cephalon's  counsel
         regarding  the matters set forth in SCHEDULE  2.2(A)(VII),  in form and
         substance reasonably satisfactory to the Purchaser; and

                 (viii) such other  certificates,  instruments  and documents as
         are  required  to be  delivered  pursuant to this  Agreement  or as the
         Purchaser may reasonably require.

             (b) The Purchaser shall deliver to the Seller the following:

                 (i) the Purchase  Price as adjusted in accordance  with SECTION
         1.3 hereof;

                 (ii) an undertaking whereby the Purchaser will assume and agree
         to pay, discharge or perform, as appropriate,  the Seller's liabilities
         and  obligations to the extent and as provided in SECTION 1.4 hereof in
         form reasonably satisfactory to the Seller and its counsel;

                 (iii) an assumption of the Facilities Leases;

                 (iv)  an  assumption  of the  Equipment  Leases  to the  extent
         provided in SECTION 1.1(C)(III);

                 (v) a  certificate  of the  President  and the Chief  Financial
         Officer of the  Purchaser  certifying  the matters set forth in SECTION
         5.2(A) hereof; and

                 (vi) such other certificates,  instruments and documents as are
         required to be  delivered  pursuant to this  Agreement or as the Seller
         may reasonably require.


                                       -6-

<PAGE>



             (c) At or prior to the  Closing,  the  parties  hereto  shall  also
deliver to each  other the  agreements,  certificates  and other  documents  and
instruments referred to in ARTICLE 5 hereof.

         2.3 THIRD PARTY CONSENTS. To the extent that the Seller's or Cephalon's
rights under any  agreement,  contract,  commitment,  lease,  Authorization  (as
defined in SECTION 3.1(F) hereof) or other Purchased Asset to be assigned to the
Purchaser  hereunder may not be assigned  without the consent of another  person
which has not been obtained, this Agreement shall not constitute an agreement to
assign the same if an attempted  assignment would constitute a breach thereof or
be unlawful.  The Seller and  Cephalon  each shall use  commercially  reasonable
efforts to obtain  such  consents  on or before the  Closing  Date.  If any such
required  consent shall not be obtained or if any attempted  assignment would be
ineffective or would impair the Purchaser's  rights under the Purchased Asset in
question so that the  Purchaser  would not in effect  acquire the benefit of all
such rights,  the Purchaser,  at its sole and exclusive option,  may require the
Seller or Cephalon,  to the maximum extent  permitted by law and by the terms of
such Purchased Asset, to act after the Closing as the Purchaser's agent in order
to obtain for the Purchaser the benefits  thereunder and the Seller and Cephalon
shall cooperate, to the maximum extent permitted by law and the Purchased Asset,
with the Purchaser in any other reasonable  arrangement designed to provide such
benefits to the Purchaser.  The Purchaser will reimburse the Seller and Cephalon
for all reasonable  out-of-pocket expenses incurred after the Closing Date in so
acting in the capacity of the Purchaser's agent.

         2.4 FURTHER ASSURANCES. The Seller and Cephalon from time to time after
the Closing, at the Purchaser's request,  will execute,  acknowledge and deliver
to the Purchaser such other instruments of conveyance and transfer and will take
such other actions and execute and deliver such other documents,  certifications
and further  assurances as the Purchaser may reasonably  require in order (i) to
vest more effectively in the Purchaser any of the Purchased  Assets,  or (ii) to
put the Purchaser  more fully in possession of any of the Purchased  Assets,  or
(iii) to better  enable the  Purchaser to complete,  perform or discharge any of
the liabilities or obligations  assumed by the Purchaser at the Closing pursuant
to SECTION 1.4 hereof,  subject to payment by the  Purchaser  of all  reasonable
out-of-pocket expenses of the Seller and Cephalon in connection with this clause
(iii).  Each of the parties hereto will cooperate with the other and execute and
deliver to the other  parties  hereto such other  instruments  and documents and
take such other actions as may be reasonably  requested from time to time by any
other party hereto as necessary to carry out,  evidence and confirm the intended
purposes of this Agreement.

         2.5  POSSESSION  AND RISK OF LOSS.  Until the  Closing,  the Seller and
Cephalon  shall  bear all risk of loss of the  Purchased  Assets to be  conveyed
hereunder. From and after the Closing, the Purchased Assets shall be at the risk
of the  Purchaser.  At the  Closing,  the  Seller  and  Cephalon  shall  put the
Purchaser in full,  complete and quiet  possession  and  enjoyment of all of the
Purchased Assets and the Leased Assets.

         2.6  PRE-CLOSING  INSPECTION.  Not less than one week prior to the date
set for the Closing,  the Purchaser  shall have the  opportunity  to inspect the
Facilities,  the  Purchased  Assets  and the Leased  Assets  for the  purpose of
confirming  the  validity of the  representations  contained  in SECTION  3.1(D)
hereof and determining that the condition of the Purchased Assets and the Leased
Assets  satisfy the  representations  contained in the first sentence of SECTION
3.1(M) hereof

                                       -7-

<PAGE>



except for any latent defects or defects that are not reasonably detectable upon
inspection prior to the Closing Date.


                   ARTICLE 3 - REPRESENTATIONS AND WARRANTIES

         3.1  REPRESENTATIONS  AND  WARRANTIES  OF THE SELLER.  Cephalon and the
Seller,  jointly and severally  hereby represent and warrant to the Purchaser as
of the date hereof as follows:

              (a)  CORPORATE  EXISTENCE.  Each of the Seller and  Cephalon  is a
corporation duly organized, validly existing and in good standing under the laws
of the State of  Delaware.  Each of  Cephalon  and the Seller has the  corporate
power and  authority to conduct its business as now being  conducted and to own,
lease and operate the properties and assets now owned, leased and being operated
by it. The Seller is duly  qualified  or licensed to do business  and is in good
standing  as a foreign  corporation  in  Maryland.  No action  has been taken or
authorized by the Seller or Cephalon to liquidate or dissolve or to transfer any
assets in a manner  inconsistent  with the  Seller's or  Cephalon's  obligations
under this Agreement. The Seller is a wholly-owned subsidiary of Cephalon.

              (b) CORPORATE POWER; AUTHORIZATION;  ENFORCEABLE OBLIGATIONS. Each
of the Seller and Cephalon has the corporate power, authority and legal right to
execute, deliver and perform this Agreement and all other agreements,  documents
and instruments contemplated hereunder. The execution,  delivery and performance
of this  Agreement by each of the Seller and Cephalon have been duly  authorized
by all necessary  corporate and shareholder action. This Agreement has been, and
the other  agreements,  documents  and  instruments  required to be delivered by
either the Seller or  Cephalon in  accordance  with the  provisions  hereof (the
"SELLER'S  DOCUMENTS")  will be, duly  executed  and  delivered on behalf of the
Seller and  Cephalon,  as applicable  and this  Agreement  constitutes,  and the
Seller's Documents when executed and delivered will constitute, the legal, valid
and binding  obligations of the Seller and Cephalon,  respectively,  enforceable
against such party in accordance with their respective  terms,  except as may be
limited  by  bankruptcy  laws and other  similar  laws  affecting  the rights of
creditors generally and principles of equity.

              (c) VALIDITY OF  CONTEMPLATED  TRANSACTIONS,  ETC. The  execution,
delivery and  performance  of this Agreement by the Seller and Cephalon does not
and will not violate or result in the breach of any term, condition or provision
of, or require  the  consent  of any other  person  which has not been  obtained
under,  (i) any law,  ordinance,  or  governmental  rule or  regulation to which
either the Seller or  Cephalon  is  subject,  (ii) any  judgment,  order,  writ,
injunction,  decree  or  award  of any  court,  arbitrator  or  governmental  or
regulatory official,  body or authority which is applicable to either the Seller
or Cephalon,  (iii) the Certificate of  Incorporation or bylaws of the Seller or
Cephalon, (iv) any mortgage, indenture, agreement, lease, plan or Authorization,
to which the Seller or Cephalon is a party,  by which the Seller or Cephalon may
have  rights or by which any of the  Purchased  Assets  may be bound or (v) will
result in the creation or imposition of any lien, claim, charge,  restriction or
encumbrance of any kind in or with respect to the Purchased  Assets,  except (A)
as described on SCHEDULE 3.1(C) hereto, (B) the filing of premerger notification
and the expiration or early  termination  of the waiting period  required by the
Hart-Scott-Rodino  Antitrust  Improvements  Act of  1976  ("HSR"),  and  (C) the
delivery and recording

                                       -8-

<PAGE>



of title transfer documentation with various regulatory authorities with respect
to the transfer of title to the vehicle to be conveyed to the Purchaser.

              (d) ALL TANGIBLE PURCHASED ASSETS. Each of SCHEDULE 1.1(A)(II) and
SCHEDULE  1.1(A)(III) hereto sets forth an accurate list and summary description
of all tangible  Purchased  Assets and Leased Assets where the net book value of
an individual  item exceeds $5,000.  All of the Purchased  Assets and the Leased
Assets are located at the Facilities  other than the Purchased  Assets listed on
SCHEDULE 3.1(D), which are within the control of the Purchaser.

              (e) TITLE TO PURCHASED ASSETS. The Seller has good and valid legal
title to all of its assets included in the Purchased  Assets,  free and clear of
all mortgages, liens, pledges, security interests, charges, claims, restrictions
and other  encumbrances and defects of title except for liens,  imperfections of
title, easements and encumbrances that are (i) for current taxes not yet due and
payable or (ii) disclosed in any of the Schedules hereto.

              (f)  COMPLIANCE  WITH  LAW;  AUTHORIZATIONS.  To the  best  of the
Seller's and Cephalon's knowledge,  the Seller and Cephalon have complied in all
respects  with  each,  and  are not in  violation  of any,  law,  ordinance,  or
governmental  or regulatory  rule or regulation  (including  without  limitation
environmental  laws),  whether federal,  state,  local or foreign,  to which the
Seller's or Cephalon's  business,  operations,  assets or properties used at the
Facilities or included in the Purchased Assets or the Leased Assets are subject.
The Seller or Cephalon owns, holds,  possesses or lawfully uses in the operation
of the  Facilities  and use of the  Purchased  Assets and the Leased  Assets all
material  franchises,   licenses,  permits,  easements,   rights,  applications,
filings, registrations and other authorizations (each, an "AUTHORIZATION") which
are necessary for it to operate the Facilities and use the Purchased  Assets and
the Leased Assets. To the best of the Seller's and Cephalon's knowledge, neither
the Seller nor  Cephalon is in violation of or default in, nor has the Seller or
Cephalon  received any notice of any claim of default or violation  with respect
to, any such Authorization.

              (g)  LITIGATION.   No  litigation,   including  any   arbitration,
investigation  or  other  proceeding  of or  before  any  court,  arbitrator  or
governmental  or  regulatory  official,  body or authority is pending or, to the
best  knowledge  of the Seller and  Cephalon,  threatened  against the Seller or
Cephalon or which  relates to the  Purchased  Assets or the Leased  Assets which
would have a material adverse effect on the Facilities,  the Purchased Assets or
the Leased Assets.

              (h)  CONTRACTS  AND  COMMITMENTS.  Except as set forth on SCHEDULE
3.1(H)  hereto,  neither  the Seller nor  Cephalon  is a party to any written or
oral:

                   (i)  agreement,  contract or commitment for the employment of
         any person,  including any  consultant,  employed at the  Facilities in
         connection with the conduct of the Seller's business;

                   (ii) agreement,  contract, commitment or arrangement with any
         labor  union or  other  representative  of  employees  relating  to the
         Facilities or the Purchased Assets;


                                       -9-

<PAGE>



                   (iii) loan agreements and other debt  instruments that in any
         manner encumber any of the Purchased Assets;

                   (iv)  agreement,  contract  or  commitment  relating  to  the
         Facilities or the Purchased Assets not otherwise  required to be listed
         on  SCHEDULE  3.1(H)  hereto or not  required to be listed by virtue of
         another provision of this SECTION 3.1(H),  and continuing over a period
         of more than six months from the date hereof or exceeding  with respect
         to the Facilities or the Purchased Assets, $10,000 in value;

                   (v)  conditional  sale  agreement  or lease  under  which the
         Seller is either purchaser,  lessor or lessee relating to the Purchased
         Assets or any property at which Purchased Assets are located;

                   (vi)  commitment or agreement for any capital  expenditure or
         leasehold  improvement in excess of $25,000  relating to the Facilities
         or the Purchased Assets;

                   (vii)  agreement,  contract  or  commitment  relating  to the
         Facilities or the Purchased  Assets  limiting or restraining the Seller
         or Cephalon or any successor  thereto,  to the best of the Seller's and
         Cephalon's  knowledge,  from using or operating the Purchased Assets in
         any legal manner, nor, to the Seller's or Cephalon's knowledge,  is any
         employee  of the  Seller  engaged  in the use of the  Purchased  Assets
         subject to any such agreement, contract or commitment; and

                   (viii)  license,   franchise  or  distributorship   agreement
         relating to the Facilities or the Purchased Assets.

         Except as may be disclosed on SCHEDULE 3.1(H),  each of the agreements,
contracts,  commitments,  leases,  plans and other  instruments,  documents  and
undertakings  listed on SCHEDULE  3.1(H) under which the Purchaser is to acquire
rights or obligations  hereunder is valid and enforceable in accordance with its
terms,  except as may be  limited  by  bankruptcy  laws and other  similar  laws
affecting the rights of creditors generally and principles of equity; the Seller
and Cephalon are in compliance with the provisions  thereof;  neither the Seller
nor  Cephalon  is, and to the  Seller's or  Cephalon's  knowledge no other party
thereto is, in default in the  performance,  observance  or  fulfillment  of any
material  obligation,  covenant or condition contained therein, and no event has
occurred  which with or without the giving of notice or lapse of time,  or both,
would constitute a default  thereunder.  Except as set forth on SCHEDULE 3.1(H),
no written or oral  agreement,  contract  or  commitment  described  in SCHEDULE
3.1(H),  requires the consent of any party to its assignment in connection  with
the transactions contemplated hereby.

             (i) INTELLECTUAL PROPERTY,  VIOLATIONS, ETC. Subject to Section 2.3
above,  the  Purchased  Assets  include all licenses from  manufacturers  of the
Purchased  Assets  necessary  for the use of the  Purchased  Assets within their
respective  functional   specifications.   No  patent,   trademark,   tradename,
servicemark, copyright or trade secret is necessary for the configuration of the
Purchased  Assets or the  Leased  Assets as  currently  configured.  To the best
knowledge  of the  Seller,  the  Purchased  Assets  and  the  Leased  Assets  as
configured by the Seller do not infringe

                                      -10-

<PAGE>



upon or unlawfully or wrongfully use any patent, trademark,  tradename,  service
mark, copyright or trade secret owned or claimed by another.

             (j) PURCHASED  ASSETS.  Except as set forth in SCHEDULE  3.1(J) and
except for the  Excluded  Assets,  the  Purchased  Assets  include all  material
property owned by the Seller or to which Seller has rights  necessary to possess
and  utilize  the  Purchased  Assets by the  Purchaser  in the manner  presently
configured by the Seller.

             (k) TAX RETURNS.  All material federal,  state,  local,  foreign or
other governmental  income,  profit and franchise,  gross receipts,  sales, use,
intangibles,   inventory,  capital  stock,  ad  valorem,  transfer,  employment,
payroll,  withholding,  occupation,  property,  license, stamp and excise taxes,
customs duties or other taxes, fees, assessments or charges whatsoever, together
with any interest and any penalties, additions to tax or additional amounts with
respect  thereto  (collectively,  "TAXES"  or a "TAX")  due with  respect to the
Seller  or  Cephalon  which  could  result  in any  lien or  encumbrance  on the
Purchased Assets have been fully paid by the Seller or Cephalon.

             (l)  INSURANCE.  SCHEDULE  3.1(L)  hereto  lists  all  policies  of
insurance  covering any casualty to the  Facilities or the  Purchased  Assets in
force on the date of this Agreement.

             (m)  CONDITION  OF ASSETS.  Except as set forth in SCHEDULE  3.1(M)
hereto,  all of the  Purchased  Assets,  taken as a whole,  are, and each of the
Purchased Assets listed on SCHEDULE  1.1(A)(II) or included within the Equipment
Leases  that has a net book value  greater  than  $5,000  is, in good  operating
condition  and repair,  subject to normal  wear and tear,  and are usable in the
regular  and  ordinary  course of the  business  of the Seller and fit for their
intended  purposes.  No  regular,  ordinary  or  required  maintenance  has been
deferred  with  respect to any of the  Purchased  Assets or the  Leased  Assets,
except for annual  maintenance on the Purchased  Assets that would normally have
been  performed in August 1996,  which the Purchaser  acknowledges  has not been
performed  by the Seller for the mutual  convenience  of the  Purchaser  and the
Seller.

             (n) FDA MATTERS.  The Seller operates and uses the Purchased Assets
and the Leased Assets in accordance with 21 U.S.C.  Section 351(a)(2)(B) and the
regulations  promulgated  thereunder  by the Food and Drug  Administration  (the
"FDA")(such law and regulations being collectively referred to herein as "CGMP")
and will  continue  to do so through  the  Closing  Date.  SCHEDULE  3.1(N) also
includes  a  listing  of  all  written   inspection   reports  or  observations,
establishment  inspection  reports,  complaints,  warning  letters  or any other
similar  documentation  issued  to the  Seller  or  Cephalon  by the  FDA or any
comparable  foreign  regulatory  authority  that  relates  in  any  way  to  the
Facilities or the Purchased Assets, including without limitation,  all Form 483s
and EIRs (collectively,  "Inspection Reports"), as well as all responses thereto
and  resolutions  thereof  by the  Seller or  Cephalon.  The  Seller  previously
provided to the  Purchaser a true and complete  copy of each of the items listed
on SCHEDULE  3.1(N) hereto,  and to the Seller's and Cephalon's  knowledge there
are no  outstanding  or  unresolved  issues  under any such  Inspection  Report.
Neither the Seller nor Cephalon  makes any  representation  or warranty that the
Facilities will meet CGMP standards for the Purchaser's intended process.

             (o) WARN ACT.  At all times  from 90 days prior to the date of this
Agreement  through the Closing,  the Seller has  employed  fewer than 50 people,
including those employees

                                      -11-

<PAGE>



experiencing  an  "employment  loss" under the Worker  Adjustment and Retraining
Notification Act, 29 U.S.C.  Section 2101 ET SEQ. ("WARN ACT"), within such time
period.  The Seller is in full  compliance with the WARN Act and its obligations
thereunder.

             (p) ENVIRONMENTAL MATTERS.

                 (i)  CONDITION OF  FACILITIES.  Except as set forth on SCHEDULE
         3.1(P),  or as  expressly  authorized  by  an  effective  permit  or by
         applicable law, there have been no releases, discharges or emissions of
         any  Hazardous  Substances  into,  onto,  under or from the  Facilities
         during the Seller's  occupancy thereof or to the Seller's or Cephalon's
         knowledge at any other time;  and no Hazardous  Substances  have at any
         time been  disposed  of in any  amount  on, at or under the  Facilities
         during the Seller's  occupancy thereof or to the Seller's or Cephalon's
         knowledge at any other time.

                 (ii) USE OF FACILITIES.  Except as set forth on SCHEDULE 3.1(P)
         attached hereto or as expressly authorized by an effective permit or by
         applicable law, neither the Seller nor Cephalon has conducted,  engaged
         in or permitted others to conduct or engage in any business,  operation
         or activity on or at the  Facilities  involving  the use,  manufacture,
         treatment, storage or disposal of any Hazardous Substances.

                 (iii)  COMPLIANCE  WITH  ENVIRONMENTAL  LAWS.  The  Seller  and
         Cephalon  are  in  material  compliance  with  all  Environmental  Laws
         applicable  to the  Facilities  or the  Purchased  Assets or the Leased
         Assets. Without limiting the foregoing,  the Seller and Cephalon are in
         material  compliance with all laws,  rules,  ordinances and regulations
         applicable  to the  Facilities  or the  Purchased  Assets or the Leased
         Assets relating to (A) the release, discharge,  emission or disposal of
         Hazardous   Substances  or  other  wastes  to  air,   water,   land  or
         groundwater; (B) the use, manufacture, importing, handling, generation,
         treatment,  storage,  transportation,  disposal or other  management of
         Hazardous  Substances or other  wastes;  (C) the exposure of persons to
         toxic, hazardous, harmful or other controlled,  prohibited or regulated
         substances;  and (D) judicial and administrative  orders,  injunctions,
         judgments, declarations, directives, notices or demands with respect to
         the foregoing matters.

                 (iv) ENVIRONMENTAL AUTHORIZATIONS. SCHEDULE 3.1(O) sets forth a
         true and complete list of all environmental permits, authorizations and
         licenses under all applicable  United States  federal,  state and local
         laws, rules,  ordinances and regulations necessary for the operation of
         the Facilities and the Purchased Assets or the Leased Assets,  and such
         permits, authorizations and licenses are in full force and effect.

                 (v) NO  LITIGATION.  To the best  knowledge  of the  Seller and
         Cephalon,   there  is  no  pending  legal  action,  claim,  proceeding,
         investigation or controversy against the Seller or Cephalon relating to
         the  Facilities  or the  Purchased  Assets or the Leased  Assets by any
         third party (including any

                                      -12-

<PAGE>



         government or governmental agency or body) arising under or relating to
         any  matters  cognizable  under  Environmental  Laws nor does any valid
         basis for such a legal  action,  claim,  proceeding,  investigation  or
         controversy exist.

                 (vi) NOTICES OF ENVIRONMENTAL PROBLEMS.  Except as set forth on
         SCHEDULE 3.1(P),  neither the Seller nor Cephalon has received nor does
         the Seller or Cephalon reasonably expect to receive any notice, letter,
         citation, order, warning, complaint,  inquiry, claim or demand alleging
         or asserting that: (a) the Seller or Cephalon has violated, or is about
         to violate,  any Environmental Laws applicable to the Facilities or the
         Purchased Assets or the Leased Assets;  (b) there has been a release or
         there is a threat of a release of any  Hazardous  Substance at, from or
         onto any of the  Facilities;  (c) the Seller or  Cephalon  may be or is
         liable, in whole or in part, for the costs of cleaning up, remediating,
         removing or responding to a release or threat of a release of Hazardous
         Substances  at, from or onto any of the  Facilities  or, as a result of
         its operating of such  Facilities,  at, from or onto any other property
         wherever located;  or (d) the Facilities are subject to a lien in favor
         of any governmental entity for any liability,  costs or damages,  under
         Environmental  Laws,  arising from costs incurred by such  governmental
         entity.

         For purposes of this SECTION  3.1(P),  "ENVIRONMENTAL  LAWS" shall mean
all United States federal, state and local laws, regulations,  standards, rules,
ordinances,  policies and other binding governmental  requirements,  judicial or
administrative   orders  and  common  law  legal   obligations   pertaining   to
environmental concerns, or to employee and occupational health and safety, or to
public  health,   including   without   limitation  the  federal   Comprehensive
Environmental Response,  Compensation and Liability Act, 42 U.S.C. Sections 9601
ET SEQ., the federal Resource  Conservation and Recovery Act, 42 U.S.C. Sections
6901 ET SEQ., the federal Clean Water Act, 33 U.S.C.  Sections 1251 ET SEQ., the
federal Clean Air Act, 42 U.S.C.  Sections 7401 ET SEQ. and analogous  state and
local laws and "HAZARDOUS  SUBSTANCES" shall mean petroleum products and wastes,
asbestos,  radon,  PCBs, and those materials  designated or defined as hazardous
substances,   pollutants,   toxic  pollutants,   toxic   substances,   hazardous
pollutants, hazardous wastes, regulated substances or other similar terms in any
Environmental  Laws, or any other substance which by law or regulation  requires
special   handling  in  its   collection,   storage,   treatment,   disposal  or
transportation.

             (q) NO  OTHER  WARRANTIES.  In  connection  with  the  transactions
contemplated  hereby and the  Facilities  and the  Purchased  Assets,  except as
expressly set forth in this SECTION 3.1, THE SELLER MAKES NO  REPRESENTATIONS OR
WARRANTIES   WHATSOEVER,   WHETHER   EXPRESS  OR  IMPLIED   OR   STATUTORY,   OF
MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE OR OTHERWISE.

             (r) FACILITIES  LEASES AND EQUIPMENT  LEASES.  All of the documents
comprising the Equipment Leases and the Facilities Leases are listed in SCHEDULE
3.1(R) hereto, and the Seller has previously delivered to the Purchaser true and
complete copies thereof.  The Equipment Leases and the Facilities  Leases are in
full  force and  effect  and the Seller  and  Cephalon,  as  applicable,  are in
compliance  with their  respective  obligations  under the  provisions  thereof.
Neither  the  Seller  nor  Cephalon  is in  default,  and  to the  Seller's  and
Cephalon's knowledge, no other party is in material default, in the performance,
observance or fulfillment of any obligation,  covenant or condition contained in
any of the Equipment Leases or the Facilities Leases, and no

                                      -13-

<PAGE>



event has occurred which,  with or without the giving of notice or lapse of time
or both, would constitute a default thereunder.

             (s)  "KNOWLEDGE OF THE SELLER AND  CEPHALON".  For purposes of this
SECTION 3.1, "to the  Seller's  knowledge,"  "to  Cephalon's  knowledge,"  "best
knowledge  of the  Seller and  Cephalon"  or words of  similar  import  shall be
conclusively  deemed  to be only  that  knowledge  actually  possessed  by those
persons  identified  in  SCHEDULE  3.1(S),  who are  employees  of the Seller or
Cephalon and who have oversight  responsibility  at the  Facilities.  The Seller
shall not be  deemed  to have  actual  or  constructive  knowledge  of any fact,
circumstance  or  occurrence  known to any person other than as set forth in the
preceding sentence.

         3.2 REPRESENTATIONS  AND  WARRANTIES OF  THE PURCHASER.  The  Purchaser
represents and warrants to the Seller as follows:

             (a)  CORPORATE  EXISTENCE.  The  Purchaser  is a  corporation  duly
organized,  validly existing and in good standing under the laws of Canada.  The
Purchaser has the  corporate  power and authority to conduct its business as now
being  conducted  and to own,  lease and operate the  properties  and assets now
owned,  leased and being  operated by it. The  Purchaser  is duly  qualified  or
licensed to do business  and is in good  standing  as a foreign  corporation  in
Maryland.  No action has been taken or  authorized by the Purchaser to liquidate
or  dissolve  or to  transfer  any  assets  in a manner  inconsistent  with this
Agreement.

             (b)  CORPORATE  POWER  AND  AUTHORIZATION.  The  Purchaser  has the
corporate power, authority and legal right to execute,  deliver and perform this
Agreement.  The  execution,  delivery and  performance  of this Agreement by the
Purchaser have been duly  authorized by all necessary  corporate and shareholder
action.  This  Agreement  has been,  and the  other  agreements,  documents  and
instruments  required to be delivered by the  Purchaser in  accordance  with the
provisions  hereof (the  "PURCHASER'S  DOCUMENTS")  will be, duly  executed  and
delivered on behalf of the Purchaser  and this  Agreement  constitutes,  and the
Purchaser's  Documents when executed and delivered will  constitute,  the legal,
valid and binding obligations of the Purchaser enforceable against the Purchaser
in  accordance  with  their  respective  terms,  except  as  may be  limited  by
bankruptcy  laws and other  similar  laws  affecting  the  rights  of  creditors
generally and principles of equity.

             (c) VALIDITY OF  CONTEMPLATED  TRANSACTIONS,  ETC.  The  execution,
delivery and  performance  of this  Agreement by the Purchaser does not and will
not violate or result in the breach of any material term, condition or provision
of, or require  the  consent  of any other  person  which has not been  obtained
under, (i) any material law,  ordinance,  or governmental  rule or regulation to
which the Purchaser is subject,  (ii) any  judgment,  order,  writ,  injunction,
decree or award of any court, arbitrator or governmental or regulatory official,
body or  authority  which is  applicable  to the  Purchaser,  (iii) the  charter
documents of the Purchaser, or (iv) any material mortgage, indenture, agreement,
lease, plan or Authorization,  to which the Purchaser is a party or by which the
Purchaser is otherwise  bound,  except for the filing of premerger  notification
and the expiration or early termination of the waiting period required by HSR.

             (d) INVESTIGATION AND EVALUATION.  The Purchaser  acknowledges that
(i) the  Purchaser  and its  directors,  officers,  attorneys,  accountants  and
advisors have been given or will

                                      -14-

<PAGE>



be given prior to the Closing the opportunity to examine all books,  records and
other  information  with respect to the Seller,  the  Facilities,  the Purchased
Assets,  and the Assumed  Liabilities  made  available  to the  Purchaser  under
SECTION  4.3  hereof,  (ii) the  Purchaser  has taken  full  responsibility  for
determining the scope of its investigations of the Seller,  the Facilities,  the
Purchased Assets, and the Assumed Liabilities,  and for the manner in which such
investigations  have been  conducted,  (iii) the  Purchaser is fully  capable of
evaluating the adequacy and accuracy of the information and material obtained by
the Purchaser in the course of such  investigations,  (iv) the Purchaser has not
relied  on the  Seller  with  respect  to any  matter  in  connection  with  the
Purchaser's evaluation of the Seller, the Facilities,  the Purchased Assets, and
the Assumed  Liabilities,  other than the  representations and warranties of the
Seller  specifically set forth in SECTION 3.1 and other agreements of the Seller
set forth herein, and (v) the Seller is making no representations or warranties,
express or implied,  of any nature  whatever  with  respect to the  Seller,  the
Purchased Assets, and the Assumed  Liabilities,  other than the  representations
and warranties specifically set forth in SECTION 3.1 and elsewhere herein.

         3.3 SURVIVAL OF REPRESENTATIONS AND WARRANTIES. The representations and
warranties made by each party in this ARTICLE 3 or in any  attachment,  Exhibit,
Schedule,  certificate,  document or list  delivered by any such party  pursuant
hereto or in connection with the transactions  contemplated hereby shall survive
the Closing.


                     ARTICLE 4 - AGREEMENTS PENDING CLOSING.

         4.1  AGREEMENTS  OF THE  SELLER  PENDING  THE  CLOSING.  The Seller and
Cephalon,  jointly and severally,  covenant and agree that,  pending the Closing
and except as otherwise agreed to in writing by the Purchaser:

              (a) other  than the  Seller's  reduction  and  termination  of its
production  activities at the Facilities in contemplation of SECTION 2.6 hereof,
the  business  of the  Seller  shall be  conducted  only in,  and the Seller and
Cephalon  shall  not take any  action  with  respect  to the  Facilities  or the
Purchased Assets or the Leased Assets except in, the ordinary course of business
and  substantially  in the  same  manner  as  carried  on as of the date of this
Agreement,  but in all events  Seller shall operate the  Facilities  and use the
Purchased Assets and the Leased Assets in accordance with CGMP;

              (b) the Seller and Cephalon will promptly  advise the Purchaser in
writing  of any  known  threat of or the  commencement  of any  dispute,  claim,
action, suit, proceeding,  arbitration or investigation against or involving the
Purchased  Assets or the Facilities,  when the amount claimed is $10,000 or more
in the aggregate or if such proceeding or  investigation is initiated by the FDA
or other regulatory  agency or of the occurrence of any development known to the
Seller or Cephalon  (exclusive of general economic factors affecting business in
general)  of a nature  that is or may be  materially  adverse  to the  business,
operations, properties, assets or prospects of the Seller or Cephalon;

              (c) the Seller and Cephalon will use their  reasonable  efforts to
conduct  their  business  in  such  a  manner  that  on  the  Closing  Date  the
representations  and  warranties  of the Seller and  Cephalon  contained in this
Agreement shall be true, except as specifically

                                      -15-

<PAGE>



contemplated  by this ARTICLE 4, as though such  representations  and warranties
were made on and as of such date. Furthermore,  the Seller and Cephalon will use
their  reasonable  efforts to cause all of the conditions to the  obligations of
the  Purchaser,  the Seller and Cephalon under this Agreement to be satisfied on
or prior to the Closing Date and shall make such filings,  take such actions and
cooperate  fully, at its expense,  with the Purchaser in securing the expiration
or  termination  of  the  waiting  period  required  under  HSR as  promptly  as
practicable;

              (d) the Seller and Cephalon shall use their reasonable efforts, to
the extent not  prohibited by the  foregoing  provisions of this SECTION 4.1, to
maintain  their  relationships  with  those  suppliers  and  vendors  subject to
agreements included in Schedule 1.1(a)(iv);

              (e) the Seller and Cephalon will maintain  themselves at all times
as corporations  duly  incorporated,  validly existing and in good standing,  as
applicable,  under  the  laws of the  State of  Delaware  and the  Seller  shall
maintain   itself  at  all  times  in  good  standing  under  the  laws  of  the
jurisdictions under which it is doing business as a foreign corporation;

              (f) the Seller and  Cephalon  will  continue to carry and maintain
all of its  existing  insurance  relating to the  Facilities  and the  Purchased
Assets and the Leased Assets;

              (g) the Seller and Cephalon will maintain the Purchased Assets and
the Leased Assets in good operating condition and repair,  usable in the regular
and ordinary course,  fit for the purposes  intended,  other than as provided in
SECTION 3.1(M) hereof;

              (h)  Neither  the Seller nor  Cephalon  shall  cause or permit any
amendment to, or any modification, cancellation, or renewal or extension of, any
of the  Facilities  Leases or the  Equipment  Leases  without the prior  written
consent of the Purchaser; and

              (i) the Seller shall  promptly  deliver to the  Purchaser  written
notice  of any  event or  development  that  would  (i)  render  any  statement,
representation  or  warranty  of  the  Seller  or  Cephalon  in  this  Agreement
(including  exceptions set forth in the schedules attached hereto) inaccurate or
incomplete in any material respect,  or (ii) constitute or result in a breach by
the Seller or  Cephalon  of, or a failure by the  Seller or  Cephalon  to comply
with,  any agreement or covenant in this  Agreement  applicable to the Seller or
Cephalon.

         4.2  AGREEMENTS  OF THE  PURCHASER  PENDING THE CLOSING.  The Purchaser
covenants and agrees that, pending the Closing and except as otherwise agreed to
in writing by the Seller:

              (a) the Purchaser  will not take any action that would result in a
breach of any of its representations and warranties hereunder.  Furthermore, the
Purchaser  shall  cooperate with the Seller and use reasonable  efforts to cause
all of the  conditions to the  obligations of the Purchaser and the Seller under
this  Agreement  to be  satisfied on or prior to the Closing Date and shall make
such  filings and take such actions as shall be  reasonably  necessary to obtain
expiration or early  termination  of the waiting  period  required by the HSR as
promptly as practicable;

              (b)  the  Purchaser  will  maintain  itself  at  all  times  as  a
corporation  duly  incorporated,  validly  existing  and in  good  standing,  as
applicable,  under the laws of the jurisdictions  under which it is incorporated
and doing business as a foreign corporation; and

                                      -16-

<PAGE>




              (c) the Purchaser  shall  promptly  deliver to the Seller  written
notice  of any  event or  development  that  would  (i)  render  any  statement,
representation  or  warranty  of the  Purchaser  in  this  Agreement  (including
exceptions set forth in the schedules  attached hereto) inaccurate or incomplete
in any  material  respect,  or (ii)  constitute  or  result  in a breach  by the
Purchaser  of, or a failure by the  Purchaser to comply with,  any  agreement or
covenant in this Agreement applicable to the Purchaser.

         4.3 ACCESS. Upon reasonable prior notice, the Seller and Cephalon shall
give to the  Purchaser's  officers,  employees,  counsel,  accountants and other
representatives  access  to and the right to  inspect,  during  normal  business
hours, the premises,  properties, assets, records, contracts and other documents
of the Seller and Cephalon  relating to the Facilities and the Purchased  Assets
and shall  permit them to consult  with the  officers,  employees,  accountants,
counsel and agents of the Seller for the purpose of making such investigation of
the  Facilities  and the Purchased  Assets,  as the Purchaser  shall  reasonably
desire  to make,  provided  that at any time  prior to  October  25,  1996  such
investigation  shall  not  unreasonably  interfere  with the  Seller's  business
operations.  At all times after  October 25, 1996 until the Closing  Date,  such
access shall be  unrestricted  access to inspect the  Facilities,  the Purchased
Assets and the Leased Assets. Furthermore, the Seller and Cephalon shall furnish
to the  Purchaser  such  documents  and  copies of  documents  and  records  and
information with respect to the Facilities and the Purchased  Assets  (including
without limitation all files and records concerning  regulatory  compliance) and
copies of any working papers  relating  thereto as the Purchaser shall from time
to time reasonably request and shall permit the Purchaser and its agents to make
such  physical  inventories  and  inspections  of the  Purchased  Assets  as the
Purchaser may reasonably request from time to time.

         4.4 PRESS  RELEASES.  Except as  required  by  applicable  law or stock
exchange  rule,  neither  the  Seller  nor the  Purchaser  shall make any public
statement or releases concerning this Agreement or the transactions contemplated
hereby except for such information as shall have been approved in writing by the
other party hereto, which approval shall not be unreasonably withheld.


                 ARTICLE 5 - CONDITIONS PRECEDENT TO THE CLOSING

         5.1 CONDITIONS   PRECEDENT  TO  THE   PURCHASER'S   OBLIGATIONS.   All
obligations of the Purchaser under this Agreement are subject to the fulfillment
or satisfaction, prior to or at the Closing, of each of the following conditions
precedent:

             (a)  REPRESENTATIONS,  WARRANTIES AND COVENANTS OF THE SELLER.  The
representations and warranties of the Seller and Cephalon herein contained shall
have been true and correct in all material  respects at the date of execution of
this Agreement and at the Closing;  the Seller and Cephalon shall have performed
in all material  respects all obligations and complied in all material  respects
with all  agreements,  undertakings,  covenants and conditions  required by this
Agreement  to be  performed  or  complied  with by it at or prior to the Closing
Date;  and the Seller and  Cephalon  shall have  delivered  to the  Purchaser  a
certificate  dated the Closing Date and signed by the  Presidents  of the Seller
and Cephalon and by the Chief Financial Officer of Cephalon to such effect.


                                      -17-

<PAGE>



             (b)  INJUNCTIONS,  ETC.  There shall not be any  judgment,  decree,
injunction,  ruling or order of any court, governmental department,  commission,
agency or  instrumentality  outstanding  against  the  Seller,  Cephalon  or the
Purchaser that prohibits or materially  restricts or delays  consummation of the
Closing.

             (c) CONSENTS  AND  APPROVALS.  The Seller and  Cephalon  shall have
obtained  the  consents  required  by the terms of the  contracts,  commitments,
agreements or  Authorizations  listed in SCHEDULE 5.1(C) to the extent that such
consent is required or necessary  under the  pertinent  debt,  lease,  contract,
commitment  or agreement or other  document or  instrument  or under  applicable
orders,  laws,  rules or regulations,  for the  consummation of the transactions
contemplated  hereby in the  manner  herein  provided.  The  required  statutory
waiting period under HSR shall have terminated.

             (d) DESTRUCTION OF THE PURCHASED ASSETS.  There shall have occurred
no  material  damage to or  destruction  or loss of  (whether  or not covered by
insurance) of any of the Purchased Assets or the Leased Assets.  In the event of
any damage,  destruction  or loss of any of the  Purchased  Assets or the Leased
Assets in a single  occurrence  with an  aggregate  net book  value in excess of
$25,000,  the Seller shall promptly  notify the Purchaser of such casualty.  The
Purchaser shall thereupon be entitled to, at its sole option and in its absolute
discretion,  (i) proceed to closing  hereunder with no reduction in the Purchase
Price,  in which event any and all proceeds of such  casualty,  if any, shall be
delivered  to or assigned  to the  Purchaser  at the  Closing,  (ii)  proceed to
closing  hereunder  with a  reduction  in the  Purchase  Price  at the  Seller's
historic cost of the damaged, destroyed or lost Purchased Assets (but not Leased
Assets or Purchased  Assets  damaged,  destroyed or lost by the  Purchaser)  (in
which  event  the  Seller  shall  retain  all  rights  to the  proceeds  of such
casualty). Notwithstanding the foregoing, if the casualty is of a magnitude that
renders  the  Facilities   "untenantable"  for  the  purposes  intended  by  the
Purchaser,  the  Purchaser  shall be  entitled,  at its sole  option  and in its
absolute  discretion,  to terminate this  Agreement,  in which event all parties
shall be relieved from any further liabilities or obligations  hereunder (except
for those  liabilities and obligations  that expressly  survive a termination of
this Agreement). As used in this subparagraph, "untenantable" shall refer to (x)
destruction of greater than 10% of the premises leased in the Facilities  Leases
or (y)  destruction of any portion of the Purchased  Assets or the Leased Assets
utilized for  manufacturing  and related  support  functions  which  renders the
Purchased Assets or the Leased Assets unfit for use to manufacture in accordance
with CGMP regulations.

         5.2 CONDITIONS  PRECEDENT TO THE SELLER'S AND  CEPHALON'S  OBLIGATIONS.
All  obligations  of the Seller and Cephalon under this Agreement are subject to
the  fulfillment  or  satisfaction,  prior to or at the Closing,  of each of the
following conditions precedent:

             (a) REPRESENTATIONS, WARRANTIES AND COVENANTS OF THE PURCHASER. The
representations and warranties of the Purchaser herein contained shall have been
true and  correct in all  material  respects  at the date of  execution  of this
Agreement;  the  Purchaser  shall have  performed in all  material  respects all
obligations  and  complied  in  all  material   respects  with  all  agreements,
undertakings,  covenants  and  conditions  required  by  this  Agreement  to  be
performed  or  complied  with by it at or prior  to the  Closing  Date;  and the
Purchaser  shall have  delivered to the Seller a  certificate  dated the Closing
Date  and  signed  by the  President  and the  Chief  Financial  Officer  of the
Purchaser to such effect.

                                      -18-

<PAGE>




             (b)  INJUNCTIONS,  ETC.  There shall not be any  judgment,  decree,
injunction,  ruling or order of any court, governmental department,  commission,
agency or instrumentality  outstanding  against the Seller or the Purchaser that
prohibits or materially restricts or delays consummation of the Closing.

             (c) CONSENTS AND APPROVALS.  The required  statutory waiting period
under HSR shall have terminated.


                        ARTICLE 6 - POST-CLOSING MATTERS

         6.1 EMPLOYEE  ARRANGEMENTS.  The Seller acknowledges that the Purchaser
is not obligated to hire any employee of the Seller.  From and after the Closing
Date,  the Purchaser  may elect,  in its sole and absolute  discretion,  to hire
employees  of the  Seller  on such  terms  and  conditions  as it  desires.  The
Purchaser shall notify the Seller of the identity of employees of the Seller, if
any,  who accept an offer of  employment  with the  Purchaser  within six months
after the  Closing,  and the  Seller  will  furnish  to all of its other  former
employees  any  notices  and other  information  required  by the  Comprehensive
Omnibus Budget  Reconciliation  Act of 1985, as amended.  The Seller shall fully
comply with the  requirements of Part 6 of Title I of ERISA and Section 4980B of
the Code with respect to all of its employees and former employees.

         6.2 DISCHARGE OF CERTAIN LIABILITIES.  From and after the Closing Date,
the Purchaser shall pay and discharge all Assumed Liabilities in accordance with
their  respective  terms and the Purchaser shall indemnify and hold harmless the
Seller and the Seller's successors,  assigns and affiliates from and against any
and all damages, losses, deficiencies,  liabilities, costs and expenses incurred
or suffered by any such person that result  from,  relate to or arise out of any
and all Assumed Liabilities.

         6.3 MAINTENANCE OF BOOKS AND RECORDS. Each of the Seller,  Cephalon and
the Purchaser shall preserve until the fifth anniversary of the Closing Date all
records possessed or to be possessed by such party relating to the Facilities or
the Purchased  Assets prior to the Closing Date.  After the Closing Date,  where
there is a legitimate  purpose,  such party shall provide the other parties with
access,  upon prior  reasonable  written  request  specifying the need therefor,
during regular  business  hours, to (a) the officers and employees of such party
and (b) the books of account and records of such party,  but, in each case, only
to the extent  relating to the  Facilities or the Purchased  Assets prior to the
Closing  Date,  and the other parties and their  representatives  shall have the
right to make  copies of such books and  records;  provided,  however,  that the
foregoing  right of  access  shall  not be  exercisable  in such a manner  as to
interfere  unreasonably  with the normal  operations and business of such party;
and further,  provided,  that, as to so much of such  information as constitutes
trade secrets or confidential business information of such party, the requesting
party and its officers,  directors and representatives  will use due care to not
disclose  such  information  except (x) as required  by law,  (y) with the prior
written consent of such party, which consent shall not be unreasonably withheld,
or (z) where such  information  becomes  available to the public  generally,  or
becomes generally known to competitors of such party, through sources other than
the   requesting   party,   its   affiliates  or  its  officers,   directors  or
representatives.  Such records may  nevertheless be destroyed by a party if such
party  sends to the  other  parties  written  notice of its  intent  to  destroy
records, specifying with particularity the

                                      -19-

<PAGE>



contents  of the records to be  destroyed.  Such  records may then be  destroyed
after the 30th day after such notice is given unless  another  party  objects to
the  destruction  in which case the party  seeking to destroy the records  shall
deliver such records to the objecting party.

         6.4 RESTRICTION ON USE OF NAME. In no event shall the Purchaser use the
name  "Cephalon"  or any  variant  thereof  from and  after  the  Closing  Date;
provided, however, that this restriction shall not prevent any disclosure of the
transactions with Cephalon and the Seller contemplated hereby to the extent such
disclosure is permitted by SECTION 4.4 or 8.5 hereof.

         6.5  SUBLICENSE.  Subject to and upon  consummation of the purchase and
sale contemplated by this Agreement, the Purchaser hereby grants to the Seller a
non-exclusive,  non-transferable,  royalty-free,  perpetual  license  to use the
validation  protocols and copies of any records included in the Purchased Assets
retained by the Seller hereunder solely for purposes of establishing  regulatory
compliance and securing regulatory approval. Title to all copies of the licensed
documentation shall remain with the Purchaser.


                           ARTICLE 7 - INDEMNIFICATION

         7.1 INDEMNIFICATION OBLIGATIONS.

             (a) Cephalon and the Seller (each, an  "indemnifying  party") shall
jointly  and  severally  indemnify  and hold  harmless  the  Purchaser,  and the
Purchaser (another  "indemnifying  party") shall indemnify and hold harmless the
Seller,  from,  against  and  in  respect  of  any  and  all  damages,   losses,
deficiencies,  liabilities,  costs  and  expenses  (including  attorneys'  fees)
resulting from, relating to or arising out of any (i) representation or warranty
which  was not  true,  complete  and  correct  when  made by or on behalf of the
indemnifying  party in this  Agreement  or in any  certificate  delivered by one
party to the other pursuant hereto,  or (ii) breach of any agreement or covenant
on the part of such indemnifying party or parties hereunder.  Claims relating to
the  representations  contained in the first sentence of Section 3.1(m) shall be
limited to latent  defects or defects that are not  reasonably  detectable  upon
inspection.  Cephalon and the Seller shall not be liable under Section 7.1(a)(i)
above for any  misrepresentation  or breach of warranty as to which the Puchaser
had actual knowledge on the date such  representation  or warranty was made. For
purposes of the foregoing sentence, "knowledge" of the Purchaser shall be deemed
to mean the actual knowledge of the persons listed on Schedule 7.1(b) hereto.

             (b)  An   indemnified   party  shall  make  no  claim   against  an
indemnifying  party for  indemnification  under SECTION 7.1(A) with respect to a
misrepresentation or breach of warranty unless and until the aggregate amount of
all such claims against an indemnifying  party exceeds [*]


[*] Confidential information has been omitted and filed separately with the
    Commission.


                                      -20-

<PAGE>



             (c)  Cephalon  and the  Seller  shall  further  indemnify  and hold
harmless the Purchaser  from any and all damages,  costs and expenses  resulting
from,  relating  to or arising  out of  liabilities  of the Seller  that are not
Assumed  Liabilities.  Such  indemnification  under this clause (c) shall not be
subject to the limits of clause (b) as to aggregate amount of claims or the time
limitation for making such claims.

             (d) Each  indemnifying  party or parties  hereto will indemnify and
hold  harmless the  indemnified  party or parties  hereto  from,  against and in
respect  of any and  all  actions,  suits,  proceedings,  demands,  assessments,
judgments,  costs  (including  attorneys'  fees) and  legal  and other  expenses
incident to the enforcement of this ARTICLE 7.

             (e)  Other  than the  rights  of the  parties  to  obtain  specific
performance and injunctive relief relating to SECTIONS 1.3(E), 2.3, 2.4, 6.3 and
8.5 hereof,  the remedy  provided by this ARTICLE 7, subject to the  limitations
set forth herein shall be the parties'  exclusive remedy for the recovery of any
damages, losses, deficiencies,  liabilities,  costs and expenses resulting from,
relating  to or arising out of any (i)  misrepresentation  or breach of warranty
made by or on  behalf  of the  indemnifying  party in this  Agreement  or in any
certificate  delivered by one party to the other pursuant hereto, or (ii) breach
of any agreement or covenant on the part of such  indemnifying  party or parties
hereunder.  Notwithstanding  the  foregoing,  nothing  in this  Agreement  shall
restrict  the   Purchaser's   rights  or  remedies  for  fraud  or   intentional
misrepresentation in this Agreement by the Seller or Cephalon.

         7.2 METHOD OF ASSERTING  CLAIMS,  ETC.  All claims for  indemnification
under this ARTICLE 7 shall be asserted and resolved as follows:

             (a) In the  event  that any claim or  demand  for which the  Seller
would be liable to the Purchaser  hereunder is asserted  against or sought to be
collected by a third party,  the Purchaser  shall promptly  notify the Seller in
writing of such claim or demand,  specifying  the nature of such claim or demand
and the amount or the  estimated  amount  thereof to the  extent  then  feasible
(which  estimate  shall not be  conclusive  of the final amount of such claim or
demand) (the "CLAIM NOTICE").  The Seller shall have 30 days from its receipt of
the Claim Notice (the "NOTICE  PERIOD") to notify the  Purchaser  (i) whether or
not the Seller disputes its liability to the Purchaser hereunder with respect to
such claim or demand,  and (ii) if the Seller does not dispute  such  liability,
whether or not it desires, at its sole cost and expense, to defend the Purchaser
against  such  claim or  demand.  In the  event  that the  Seller  notifies  the
Purchaser  within  the  Notice  Period  that the Seller  does not  dispute  such
liability  and desires to defend  against such claim or demand,  then the Seller
shall  have  the  right  to  defend  the  claim.  If the  Purchaser  desires  to
participate in, but not control,  any such defense or settlement it may do so at
its sole cost and expense.  If the Seller disputes its liability with respect to
such  claim or demand or elects  not to defend  against  such  claim or  demand,
whether by not giving  timely notice as provided  above or  otherwise,  then the
Purchaser  shall have the right to defend  against such claim or demand (but the
Purchaser  shall not have any  obligation  to contest any such claim or demand),
and that portion thereof as to which such defense is unsuccessful, shall be

                                      -21-

<PAGE>



conclusively deemed to be a liability of the Seller hereunder  (subject,  if the
Seller has timely  disputed  liability,  to a  determination  that the  disputed
liability is covered by these indemnification provisions).

             (b) In the event that the Purchaser should have a claim against the
Seller  hereunder that does not involve a claim or demand being asserted against
or sought to be collected from it by a third party, the Purchaser shall promptly
send a Claim Notice with respect to such claim to the Seller. If the Seller does
not notify the Purchaser  within the Notice Period that its disputes such claim,
the amount of such claim shall be conclusively  deemed a liability of the Seller
hereunder.

             (c) All claims for  indemnification  made by the Seller  under this
Agreement shall be asserted and resolved under the procedures set forth above in
this SECTION 7.2 by substituting,  as appropriate,  "Purchaser" for "Seller" and
"Seller" for "Purchaser."

         7.3 PAYMENT.  In the  event  that any  party is  required  to make any
payment  under this  ARTICLE 7, such party shall  promptly  pay the  indemnified
party the amount so  determined  in cash. If there should be a dispute as to the
amount or manner of  determination  of any indemnity  obligation owed under this
ARTICLE 7, the party from which  indemnification  is due shall  nevertheless pay
when due such  portion,  if any,  of the  obligation  as shall not be subject to
dispute.  Upon the  payment  in full of any claim  the  party or  entity  making
payment shall be subrogated to the rights of the  indemnified  party against any
person, firm,  corporation or other entity with respect to the subject matter of
such claim.


                            ARTICLE 8 - MISCELLANEOUS

         8.1 TERMINATION.

             (a) Anything  herein or elsewhere to the contrary  notwithstanding,
this  Agreement may be terminated by written  notice of  termination at any time
before the Closing Date only as follows:

                 (i) by mutual consent of the Seller and the Purchaser;

                 (ii) by the Purchaser,  (A) at any time if the  representations
         and  warranties  of the Seller  contained  in SECTION  3.1 hereof  were
         incorrect in any material  respect when made or at any time thereafter,
         or (B) upon  written  notice  to the  Seller  given  at any time  after
         November 30, 1996 (or such later date as shall have been specified in a
         writing authorized on behalf of the Seller and the Purchaser) if all of
         the conditions  precedent set forth in SECTION 5.1 hereof have not been
         met; or

                 (iii) by the Seller, (A) at any time if the representations and
         warranties  of the  Purchaser  contained  in SECTION  3.2  hereof  were
         incorrect in any material  respect when made or at any time thereafter,
         or (B) upon  written  notice to the  Purchaser  given at any time after
         November 30, 1996 (or such later date as

                                      -22-

<PAGE>



         shall  have been  specified  in a writing  authorized  on behalf of the
         Seller and the Purchaser) if all of the conditions  precedent set forth
         in SECTION 5.2 hereof have not been met.

             (b) In the event of the termination and abandonment hereof pursuant
to  the  provisions  of  this  SECTION  8.1,  this  Agreement  (except  for  the
obligations  of the  confidentiality  provisions  of set  forth in  SECTION  8.5
hereof, which shall continue) shall become void and have no effect,  without any
liability  on the part of any of the parties or their  directors  or officers or
shareholders in respect of this Agreement, except that the termination shall not
relieve  a  breaching   party  from   liability   incurred  for  breach  of  any
representation, warranty, covenant or agreement giving rise to such termination.

         8.2  COMPLIANCE  WITH BULK SALES LAWS.  The  Purchaser,  the Seller and
Cephalon hereby waive compliance by the Purchaser,  the Seller and Cephalon with
the bulk sales law and any other similar laws in any applicable  jurisdiction in
respect  of the  transactions  contemplated  by this  Agreement.  The Seller and
Cephalon shall indemnify the Purchaser from, and hold it harmless  against,  any
liabilities,  losses,  damages,  costs and expenses (including  attorneys' fees)
resulting from or arising out of (i) the parties'  failure to comply with any of
such laws in respect of the transactions contemplated by this Agreement, or (ii)
any action  brought  or levy made as a result  thereof,  other than the  Assumed
Liabilities, on such terms as are expressly assumed by the Purchaser pursuant to
this Agreement.

         8.3 BROKERAGE; EXPENSES; ETC.

             (a) The parties hereto  represent and warrant that all negotiations
relative to this  Agreement  have been carried on by them  directly  without the
intervention of any person,  firm or corporation.  Each party will indemnify the
other and hold such other party harmless against and in respect of any claim for
brokerage,  finder's or other  commissions or fees relative to this Agreement or
the  transactions  contemplated  hereby made by any person,  firm or corporation
claiming through it.

             (b)  Except as  otherwise  expressly  provided  herein,  each party
hereto shall pay its own expenses,  including without limitation, the reasonable
fees and expenses of its counsel, incurred in connection with this Agreement and
the transactions contemplated hereby.

             (c) The  Purchaser  shall pay all  federal,  state and local sales,
documentary  and other transfer  taxes, if any, due as a result of the purchase,
sale or transfer of the Purchased Assets (excluding any income,  profit or gains
taxes payable by the Seller) in accordance  herewith  whether  imposed by law on
the Seller or the Purchaser,  and the Purchaser shall  indemnify,  reimburse and
hold  harmless the Seller in respect of the  liability for payment of or failure
to pay any such taxes or the filing of or failure to file any  reports  required
in connection therewith.

         8.4 CONTENTS OF AGREEMENT;  AMENDMENT; PARTIES IN INTEREST, ASSIGNMENT,
ETC. This  Agreement sets forth the entire  understanding  of the parties hereto
with  respect  to  the  subject  matter  hereof.  Any  previous   agreements  or
understandings  between the parties  regarding  the  subject  matter  hereof are
merged into and  superseded by this  Agreement.  This  Agreement may be amended,
modified or supplemented only by written instrument duly executed by each of the

                                      -23-

<PAGE>



parties hereto. All representations, warranties, covenants, terms and conditions
of this  Agreement  shall be  binding  upon and inure to the  benefit  of and be
enforceable  by the  respective  heirs,  legal  representatives,  successors and
permitted  assigns of the parties  hereto,  provided  that no party hereto shall
assign this Agreement or any right, benefit or obligation hereunder,  other than
to an affiliated  entity.  Any term or provision of this Agreement may be waived
at any time by the party entitled to the benefit thereof by a written instrument
duly executed by such party.

         8.5  CONFIDENTIALITY.  Each  party will hold in strict  confidence  all
confidential  information  obtained from the other party in connection  with the
transactions   contemplated  by  this  Agreement  and  will  not  disclose  such
confidential  information to any party (other than their  respective  employees,
consultants and advisors), nor use or permit such information to be used for any
purpose  other than in connection  with the  transactions  contemplated  hereby.
Notwithstanding  the foregoing,  confidential  information shall not include any
information  which (i) is in its  possession  prior to  disclosure  by the other
party hereto, (ii) was or becomes part of the public domain, except by breach of
the  disclosing  party's   confidentiality   obligations  hereunder,   (iii)  is
independently  developed by the  disclosing  party  without use of  confidential
information,  or (iv) is lawfully  received by the disclosing party from a third
party having a right to disclose such information to the disclosing  party. Each
party shall be  authorized  to disclose  confidential  information  of the other
where  disclosure is made pursuant to a court rule or order, or governmental law
or regulation,  provided that the disclosing  party gives the other party hereto
an opportunity to limit such disclosure.  If the transaction contemplated hereby
is not  consummated,  each party will,  promptly upon the other party's request,
deliver to such party all  confidential  information  in its possession and will
use all reasonable efforts to cause all copies and summaries or synopses thereof
to be returned or destroyed.  Such destruction  shall be confirmed in writing to
the other party.  Information regarding the Purchased Assets shall, at all times
prior to the  Closing  Date,  be deemed to be  confidential  information  of the
Seller,  and  shall,  at all  times  after  the  Closing  Date,  be deemed to be
confidential information of the Purchaser.  This Section 8.5 shall survive for a
period of two years following the date hereof.

         8.6 NOTICES. All notices,  consents or other communications required or
permitted  to be given  under this  Agreement  shall be in writing  and shall be
deemed to have been duly  given  when  delivered  personally,  delivery  charges
prepaid, or three business days after being sent by registered or certified mail
(return receipt  requested),  postage  prepaid,  or one business day after being
sent by a nationally  recognized  express courier  service,  postage or delivery
charges  prepaid,  to the parties at their  respective  addresses  stated below.
Notices  may  also be  given by  prepaid  telegram  or  facsimile  and  shall be
effective on the date  transmitted if confirmed  within 24 hours thereafter by a
signed original sent in the manner provided in the preceding sentence. Any party
may change its address  for notice and the address to which  copies must be sent
by giving notice of the new address to the other parties in accordance with this
SECTION 8.6.

                  If to the Purchaser, to:

                           North American Vaccine, Inc.
                           12103 Indian Creek Street
                           Beltsville, MD 20705
                           Attention:  Senior Vice President - 
                              Legal Affairs and General Counsel
                           FAX: (301) 419-0167

                                      -24-

<PAGE>




                  With a required copy to:

                           Arnold & Porter
                           555 12th Street, N.W.
                           Washington, DC 20004-1202
                           Attention: Althea L. Harlin, Esq.
                           FAX: (202) 942-5999

                  If to the Seller, to:

                           Cephalon Property Management, Inc.
                           145 Brandywine Parkway
                           West Chester, Pennsylvania 19380
                           Attention:  General Counsel
                           FAX:  (610) 344-0065


                  With a required copy to:

                           Morgan, Lewis & Bockius LLP
                           2000 One Logan Square
                           Philadelphia, PA 19103
                           Attention:  Michael J. Pedrick, Esq.
                           FAX:  (215) 963-5299

         8.7 MARYLAND  LAW TO GOVERN.  This  Agreement  shall be governed by and
interpreted  and enforced in accordance  with the laws of the State of Maryland,
without giving effect to conflicts of law principles.

         8.8 NO BENEFIT TO OTHERS. The  representations,  warranties,  covenants
and  agreements  contained  in this  Agreement  are for the sole  benefit of the
parties hereto and their respective  successors and assigns,  and they shall not
be construed as conferring any rights on any other persons.

         8.9 HEADINGS,  GENDER AND "PERSON." All section  headings  contained in
this Agreement are for convenience of reference only, do not form a part of this
Agreement and shall not affect in any way the meaning or  interpretation of this
Agreement.  Words used herein,  regardless of the number and gender specifically
used,  shall be deemed and  construed to include any other  number,  singular or
plural,  and any other gender,  masculine,  feminine,  or neuter, as the context
requires. Any reference to a "person" herein shall include an individual,  firm,
corporation,  partnership,  trust,  governmental authority or body, association,
unincorporated organization or any other entity.

         8.10  SCHEDULES  AND EXHIBITS.  All Exhibits and Schedules  referred to
herein  are  intended  to be and  hereby  are  specifically  made a part of this
Agreement.


                                      -25-

<PAGE>



         8.11 SEVERABILITY.  Any provision of this Agreement which is invalid or
unenforceable  in any  jurisdiction  shall be  ineffective to the extent of such
invalidity or unenforceability  without invalidating or rendering  unenforceable
the  remaining   provisions   hereof,  and  in  lieu  of  any  such  invalid  or
unenforceable  provision  there  shall be added a  provision  or  provisions  as
similar in terms to such invalid or unenforceable part as may be possible and be
valid, legal or enforceable and any such invalidity or  unenforceability  in any
jurisdiction shall not invalidate or render  unenforceable such provision in any
other jurisdiction.

         8.12  COUNTERPARTS.  This  Agreement  may be  executed in any number of
counterparts  and any party  hereto may  execute any such  counterpart,  each of
which when executed and  delivered  shall be deemed to be an original and all of
which  counterparts  taken  together  shall  constitute  but one  and  the  same
instrument.  This Agreement  shall become binding when one or more  counterparts
taken together  shall have been executed and delivered by the parties.  It shall
not be necessary in making proof of this Agreement or any counterpart  hereof to
produce or account for any of the other counterparts.

         IN  WITNESS  WHEREOF,  the  parties  hereto  have  duly  executed  this
Agreement on the date first written.

ATTEST:                             CEPHALON PROPERTY MANAGEMENT, INC.


By /s/ Barbara Schilberg            By /s/ J. Kevin Buchi
   ---------------------               --------------------------
As its Secretary                    As its Vice President


ATTEST:                             CEPHALON, INC.


By /s/ Barbara Schilberg            By /s/ J. Kevin Buchi
   ---------------------               --------------------------
As its Secretary                    As its Senior Vice President and
                                           Chief Financial Officer


ATTEST:                             NORTH AMERICAN VACCINE, INC.


/s/ Daniel J. Abdun-Nabi            By /s/ Sharon Mates
- -------------------------              ---------------------------
As its Daniel J. Abdun-Nabi             As its Sharon Mates, Ph.D.
      Secretary                               President





                                     - 26 -


<TABLE> <S> <C>

<ARTICLE>         5
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE
COMPANY'S QUARTERLY REPORT ON FORM 10-Q FOR THE THREE MONTHS ENDED SEPTEMBER 30,
1996 AND IS QUALIFIED IN ITS ENTIRETY BY REFERENCE TO SUCH FINANCIAL
STATEMENTS.
</LEGEND>    
<MULTIPLIER>                                         1,000
       
<S>                                                   <C>
<PERIOD-TYPE>                                         9-MOS
<FISCAL-YEAR-END>                                                   DEC-31-1996
<PERIOD-START>                                                      JAN-01-1996
<PERIOD-END>                                                        SEP-30-1996
<CASH>                                                                   81,881
<SECURITIES>                                                              2,031
<RECEIVABLES>                                                                 0
<ALLOWANCES>                                                                  0
<INVENTORY>                                                                   0
<CURRENT-ASSETS>                                                         83,890
<PP&E>                                                                   31,341
<DEPRECIATION>                                                           13,572
<TOTAL-ASSETS>                                                          107,528
<CURRENT-LIABILITIES>                                                     8,531
<BONDS>                                                                  86,250
                                                         0
                                                               6,538
<COMMON>                                                                 63,239
<OTHER-SE>                                                             (57,167)
<TOTAL-LIABILITY-AND-EQUITY>                                            107,528
<SALES>                                                                     727
<TOTAL-REVENUES>                                                            727
<CGS>                                                                         0
<TOTAL-COSTS>                                                            23,706
<OTHER-EXPENSES>                                                              0
<LOSS-PROVISION>                                                              0
<INTEREST-EXPENSE>                                                        2,456
<INCOME-PRETAX>                                                        (19,290)
<INCOME-TAX>                                                                  0
<INCOME-CONTINUING>                                                    (19,290)
<DISCONTINUED>                                                                0
<EXTRAORDINARY>                                                               0
<CHANGES>                                                                     0
<NET-INCOME>                                                           (19,290)
<EPS-PRIMARY>                                                            (0.63)
<EPS-DILUTED>                                                            (0.63)
        

</TABLE>


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