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                                                                   EXHIBIT 10.20
                      SENIOR EXECUTIVE SEVERANCE AGREEMENT

         AGREEMENT made this 27TH day of March, 1998 between Serologicals
Corporation having its principal place of business at 780 Park North Blvd.,
Suite 110, Clarkston, GA 30021 ("Employer"), and __________________________
 ("Employee").

         The purpose of this Agreement is to afford Employee additional security
concerning his or her employment with Employer by providing for certain
termination payments to Employee in the event that there is a Change in Control
of Employer as described in the definition of "Change in Control" below. The
provisions of this Agreement shall only be effective in the event that there is
a Change in Control, and nothing in this Agreement extends or expands Employee's
present rights concerning employment with Employer in the absence of a Change in
Control or is intended to create a contract, guarantee or promise of continued
employment by the Employer or alter the compensation that the Employee could
reasonably expect in the absence of a Change in Control. The Employer shall have
no obligation hereunder if the Employee's employment shall have been terminated
for any reason prior to a Change in Control. It is acknowledged and agreed that
even if Employee is in fact an employee of a subsidiary of Employer the
provisions hereof shall nevertheless remain applicable as if Employee were
employed by Employer.

         Based upon the foregoing, and in consideration of Employee's continued
employment with Employer, Employer agrees as follows:

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         1. TERM. This Agreement shall be effective as of the date first above
written through March 27, 2003, provided, however, that this Agreement shall be
automatically renewed for successive two (2) year periods thereafter unless one
hundred twenty (120) days written notice is given by either party to the other
prior to the end of the term then in effect; provided that no termination of the
Employee's employment shall affect receipt of a Termination Payment or other
benefits hereunder which are payable in respect of a Change in Control which
occurred prior to such termination.

         2.       TERMINATION.

                  (a) TERMINATION BY EMPLOYEE AFTER A CHANGE IN CONTROL.
Employee shall have the right to terminate his or her employment at any time
within twelve (12) months after the occurrence of a Change in Control, except
that the Employee may not terminate his or her employment on account of a Change
of Control that occurs solely as a result of the circumstances described in
paragraph 3(b)(i) hereof. If Employee terminates his or her employment during
such time period, Employee shall be paid an amount equal to the Termination
Payment. If Employee is entitled to payment under this subparagraph 2(a),
Employee shall not be entitled to payment under subparagraph 2(b).

                  (b) TERMINATION BY EMPLOYER OR CONSTRUCTIVE DISMISSAL BY
EMPLOYER AFTER A CHANGE IN CONTROL. Except in the case of a termination for
Disability by Employer, if any time within two (2) years after the occurrence of
a Change in Control, either (i) Employer terminates Employee's employment, or
(ii) Employee terminates his or her employment following a Constructive
Dismissal by Employer, then Employee shall be paid an amount equal to the


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Termination Payment. If Employee is entitled to payment under this subparagraph
2(b), Employee shall not be entitled to payment under subparagraph 2(a).

                  (c) TERMINATION PAYMENT. The Termination Payment shall be paid
in a lump sum and shall equal the product of (x) 2.99 and (y) the Employee's
combined annual base salary and bonus, averaged over the most recent three (3)
year period immediately prior to the Change in Control. With respect to the year
in which the Employee's employment is terminated, the above calculation shall
include the full year's base salary and any bonus or incentive compensation to
which the Employee would have been entitled had the Employee's employment not
been terminated in such year. In the event that Employee becomes entitled to the
Termination Payment, if any of the Termination Payment will be subject to the
tax (the "Excise Tax") imposed by Section 4999 of the Internal Revenue Code of
1986, as amended (the "Code"), the Employer shall pay to Employee, an additional
amount (the "Gross-Up Payment") such that the net amount retained by Employee,
after deduction of any Excise Tax on the Termination Payment and any federal,
state and local income tax and Excise Tax upon the payment provided for by this
paragraph, shall be equal to the Termination Payment. For purposes of
determining whether any of the Termination Payment will be subject to the Excise
Tax and the amount of such Excise Tax, (x) any other payments or benefits
received or to be received by Employee in connection with a Change in Control or
the termination of Employee's employment (whether pursuant to the terms of this
agreement or any other plan, arrangement or agreement with the Employer, any
person whose actions result in a Change in Control or any person having such a
relationship with the Employer or such person as to require attribution of stock
ownership between the parties under section 318(a) of the Code) shall be treated
as

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"parachute payments" within the meaning of section 280G(b)(2) of the Code, and
all "excess parachute payments" within the meaning of section 280G(b)(1) shall
be treated as subject to the Excise Tax, unless in the opinion of tax counsel
selected by the Employer's independent auditors and reasonably acceptable to
Employee such other payments or benefits (in whole or in part) do not constitute
parachute payments, or such excess parachute payments (in whole or in part)
represent reasonable compensation for services actually rendered within the
meaning of Section 280G(b)(4) of the Code, (y) the amount of the Termination
Payment which shall be treated as subject to the Excise Tax shall be equal to
the lesser of (A) the total amount of the Termination Payment or (B) the amount
of excess parachute payments within the meaning of Sections 280G(b)(1) and (4)
(after applying clause (x), above, and after deducting any excess parachute
payments in respect of which payments have been made under this clause (y)), and
(z) the value of any non-cash benefits or any deferred payment or benefit shall
be determined by the Employer's independent auditors in accordance with the
principles of Sections 280G(d)(3) and (4) of the Code. For purposes of
determining the amount of the Gross-Up Payment, Employee shall be deemed to pay
federal income taxes at the highest marginal rate of federal income taxation in
the calendar year in which the Gross-Up Payment is to be made and state and
local income taxes at the highest marginal rates of taxation in the state and
locality of residence upon the date of termination, net of the maximum reduction
in federal income taxes which could be obtained from deduction of such state and
local taxes. In the event that the Excise Tax is subsequently determined to be
less than the amount taken into account hereunder at the time of termination of
Employee's employment, Employee shall repay to the Employer at the time that the
amount of such reduction in Excise Tax is finally determined the portion of the
Gross-Up

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Payment attributable to such reduction plus interest on the amount of such
repayment at the rate provided in section 1274(b)(2)(B) of the Code. In the
event that the Excise Tax is determined to exceed the amount taken into account
hereunder at the time of the termination of Employee's employment (including by
reason of any payment the existence or amount of which cannot be determined at
the time of the Gross-Up Payment), the Employer shall make an additional
gross-up payment in respect of such excess (plus any interest payable with
respect to such excess) at the time that the amount of such excess is finally
determined.

                  (d) TIME OF PAYMENT. Employer shall pay any amounts due to
Employee under subparagraphs 2(a) or 2(b) upon the later of (x) if Employee is
requested by Employer to be Reasonably Available during the Transition Period,
the end of the Transition Period or (y) termination of Employee's employment.

                  (e) BENEFITS. In the event of a termination of employment of
the Employee pursuant to paragraph 2, the Employee shall be entitled to the
following provisions:

                      (i) all Employer provided executive perquisites,
including, without limitation, any automobile allowance, provided to Employee at
the time of the Change in Control shall continue to be provided to Employee for
three (3) years at the Employer's sole expense;

                     (ii) all Employer provided employee health insurance
benefits provided to Employee at the time of the Change in Control shall
continue to be provided to Employee for three (3) years at the Employer's sole
expense or the Employer may, at its election, provide the Employee with the cash
equivalent of the premiums then payable by the Employer for such health
insurance;

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                      (iii) Employer shall contribute for three (3) years to the
           Employee's 401(k) Plan account an amount equal to the average of the
           Employer's contribution, if any, for the three (3) years prior to the
           Change in Control;

                      (iv) the Employee shall immediately vest in any Employer
           contributions to the Employee's 401(k) Plan account; and

                      (v) except to the extent such actions shall make "pooling
           of interests" accounting unavailable to a Change of Control
           transaction approved by the Employer's Board of Directors, all
           outstanding and unvested stock options held by the Employee shall
           immediately vest and become exercisable and such exercise period
           shall extend for the remainder of the original term of such options
           without giving effect to any shorter term of such options as a result
           of the termination of the Employee's employment.

                  (f) NO OTHER SEVERANCE PAYMENTS. If Employee receives a
payment under either subparagraphs 2(a) or 2(b), Employee shall not be entitled
to any severance payments that might otherwise be payable to Employee, whether
by employment contract or otherwise.

                  (g) TRANSITION PERIOD. Upon the termination of Employee's
employment resulting in the Employee being entitled to receive the Termination
Payment, Employee shall be Reasonably Available during the Transition Period to
assist the Employer in the transition of the business of the Employer and the
transactions effected as part of the Change of Control, and the Employer shall
continue for the Transition Period to (x) pay Employee at a rate equal to the
higher of (i) the average annual base salary and bonus used to calculate the
Termination Payment and (ii) the Employee's rate of pay immediately prior to
Employee's termination of


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employment and (y) provide benefits to Employee that Employee was receiving
immediately prior to the Transition Period.

         3. CERTAIN DEFINITIONS. For purposes of this agreement, the following
terms have the meanings indicated:

                  (a) "Constructive Dismissal by Employer" shall occur if
Employer demotes Employee from his or her present position; changes Employee's
title or reporting relationship which results in a diminution of the position,
duties, authority or responsibility of Employee; significantly reduces
Employee's duties; materially decreases Employee's benefits or compensation by
10% or greater; significantly increases Employee's duties or responsibilities
without a corresponding change of title and increase in compensation; or
relocates Employee to a location outside of the community where Employee is
employed as of the date of the Change in Control.

                  (b) "Change in Control" shall mean the occurrence of any of
the events described below:


                      (i) a change, within a period of 24 months or less, in the
composition of the Board of Directors of the Employer, such that at any time the
majority of directors who are then serving were not serving at the beginning of
such period, unless at such date of determination, such directors were nominated
upon the recommendation of a majority of the Board of Directors who were
directors at the beginning of such period;

                      (ii) any "person" (as such term is defined in Section
3(a)(9) and 13(d)(3) of the Securities Exchange Act of 1934, as amended (the
"1934 Act")), other than the Employee, or any group of which the Employee is a
member (within the meaning of Rule 13d-1(f) of the

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Rules and Regulations promulgated under the 1934 Act), or an "Affiliate" or
"Associate" (as such terms are defined in Rule 405 of the Rules and Regulations
promulgated under the Securities Act of 1933, as amended) thereof, becomes a
beneficial owner (as defined in Section 13(d)(3) of the 1934 Act), directly or
indirectly, of (x) securities of the Employer representing thirty percent (30%)
or more of the Employer's then outstanding securities having the right to vote
for the election of directors; PROVIDED, that the acquisition by the Employer of
another corporation or the assets thereof or a similar transaction in which the
Employer issues securities representing 30% or more of the total number of votes
that may be cast for the election of directors of the Employer to such a
"person" shall not constitute a "Change in Control" if (1) the Employer is the
surviving corporation, (2) within a 12 month period after the closing of such
transaction, the Chief Executive Officer of the Employer and the Chief Financial
Officer who were serving as such immediately preceding the signing of the
acquisition (or similar) agreement relating to such transaction, have not been
terminated by the Employer (other than for cause) and neither such Chief
Executive Officer nor such Chief Financial Officer have terminated his or her
employment following a Constructive Dismissal by Employer and (3) the Board of
Directors of the Employer shall not change over a 24 month period, in connection
with or as a consequence of such transaction, by more than 30%; or (y) all or
substantially all of the assets of the Employer;

                      (iii) commencement (within the meaning of Rule 14d-2 of
the Rules and Regulations promulgated under the 1934 Act) of a "tender offer"
for capital stock of the Employer subject to Section 14(d)(2) of the 1934 Act by
any "person" (as defined above) other than the Employer or any group of which
the Employee is a member; or

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                      (iv) the stockholders of the Employer approve a plan of
complete liquidation of the Employer or an agreement for the sale or disposition
by the Employer of all or substantially all of the Employer's assets.

                  (c) "Disability" shall mean termination because of the
Employee's failure to properly and fully perform the duties and responsibilities
of his or her employment with the Employer, due to mental or physical illness,
for a period of 120 consecutive days, or 180 days, even though not consecutive,
within any 360-day period, all as determined in good faith by the Board of
Directors of the Employer and supported by medical evidence.

                  (d) "Reasonably Available" shall mean being available in
person during regular business hours at the facilities of the Employer where the
Employer was principally employed during the twelve (12) month period
immediately prior to termination, approximately seven (7) hours per day for each
weekday that such facility is open for business.

                  (e) "Transition Period" shall mean the period of up to three
(3) months commencing upon the termination of Employee's employment during which
the Employee shall be Reasonably Available at the request of the Employer. The
Employer shall specify in writing upon such termination of employment the exact
number of days it desires to have the Employee be Reasonably Available.

         4. EFFECT OF EMPLOYER'S MERGER, TRANSFER OF ASSETS OR DISSOLUTION. This
Agreement shall not be terminated by any merger or consolidation where Employer
is not the consolidated or surviving corporation, transfer of substantially all
of the assets of Employer, or voluntary or involuntary dissolution of Employer.
In the event of any such merger, consolidation or transfer of assets, the
surviving corporation or the transferee of Employer's assets shall be bound by
the


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provisions of this Agreement, and Employer shall take all actions necessary to
insure that such corporation or transferee is bound by the provisions of this
Agreement.

         5. ARBITRATION. Any controversy between Employer and Employee involving
the construction or application of any of the terms, provisions or conditions of
this Agreement, any claim hereunder, or any claim pertaining to any covenant of
good faith and fair dealing or any other duty implied by law, shall on the
written request of either party served on the other be submitted to arbitration,
and such arbitration shall proceed and be governed by the provisions of the
American Arbitration Association. Employer and Employee shall, within fourteen
(14) days after such notice, each appoint one person to hear and determine the
dispute, and the two appointees, within fourteen (14) days after appointment of
both of them, shall jointly select a third impartial arbitrator whose decision
shall be final and conclusive upon both parties. The arbitrators shall have the
power to alter, amend or modify the terms of this Agreement. The decision of the
arbitrators shall be final and binding. The costs of arbitration, including the
reasonable attorneys fees of the prevailing party, shall be borne by the losing
party. Any such arbitration shall be conducted in Atlanta, Georgia. Arbitration
as provided herein shall be the exclusive means to resolve any of the
controversies referred to in this paragraph 5.

         6. PARTIAL INVALIDITY. If any provision of this Agreement is held by a
court of competent jurisdiction be invalid, void or unenforceable, the remaining
provisions shall nevertheless continue in full force without being impaired or
invalidated in any way.

         7. AGREEMENT SUPERSEDES ANY INCONSISTENT PRIOR AGREEMENTS OR
UNDERSTANDINGS. The terms of this Agreement supersede any inconsistent prior
promises, policies, 

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representations, understandings, arrangements or agreements between the parties
with respect to the subject matter hereof, whether by employment contract or
otherwise.

         8. NOTICES. All notices required or permitted to be given by either
party hereunder, including notice of change of address, shall be in writing and
delivered by hand, or mailed, postage prepaid, certified or registered mail,
return receipt requested, to the other party as follows:

         If to the Employer:                Serologicals Corporation
                                            780 Park North Blvd.
                                            Suite 110
                                            Clarkston, GA 30021
                                            Attn: Chief Executive Officer

         If to the Employee:                [NAME]
                                            [ADDRESS]

          9. GOVERNING LAW. This Agreement shall be governed by and construed in
accordance with the internal laws of the State of Georgia applicable to
contracts executed in and to be performed solely within such State.

         10. FURTHER ASSURANCES. The parties hereto agree that, after the
execution of this Agreement, they will make, do, execute or cause or permit to
be made, done or executed all such further and other lawful acts, deeds, things,
devices, conveyances and assurances in law whatsoever as may be required to
carry out the true intention and to give full force and effect to this
Agreement.

         11. COUNTERPARTS. This Agreement may be executed in two or more
counterparts with the same effect as if the signatures to all such counterparts
were upon the same instrument, and all counterparts shall constitute but one
instrument.


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         12. HEADINGS. All headings in this Agreement are for convenience only
and are not intended to affect the meaning of any provision hereof.

         13. SUCCESSORS AND ASSIGNS. This Agreement shall inure to the benefit
of, and be binding upon, the Employer, its successors and assigns and any
corporation with which the Employer merges or consolidates or to which the
Employer sells all or substantially all of its assets, and upon the Employee and
his or her executors, administrators, heirs and legal representatives.

         IN WITNESS WHEREOF, the Employee has executed this Agreement and the
Employer has caused this Agreement to be executed by a duly authorized officer
as of the day and year first above written.

                                                     SEROLOGICALS CORPORATION


                                                     By:_____________________



                                                     ------------------------
                                                     Employee Name



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