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                                                                    EXHIBIT 10.6

                             EMPLOYMENT AGREEMENT

This Employment Agreement is entered into as of ___________ __, 2000 [insert
effective date of merger], between William D. Block ("Employee") and OraSure
Technologies, Inc., a Delaware corporation (the "Company").

     1.   Services.

          1.1  Employment.  The Company agrees to employ Employee as Senior Vice
President of Sales of the Company, and Employee hereby accepts such employment
in accordance with the terms and conditions of this Agreement.

          1.2  Duties.  Employee shall have the position named in Section 1.1
with such powers and duties appropriate to that office (a) as may be provided by
the bylaws of the Company, (b) as otherwise set forth in Exhibit A attached to
this Agreement, and (c) as determined by the board of directors from time to
time.  Subject to the provisions of Section 6.4 hereof, Employee's position and
duties may be changed from time to time during the term of this Agreement.
Employee's place of work shall be the Company's headquarters, at its present
location or as it may be relocated.

          1.3  Outside Activities.  Employee shall obtain the consent of the
board of directors before he engages, either directly or indirectly, in any
other professional or business activities that may require an appreciable
portion of Employee's time or effort to the detriment of the Company's business.

          1.4  Direction of Services.  Employee shall at all times discharge his
duties in consultation with and under the supervision and direction of the Chief
Executive Officer of the Company or such other officer as the Chief Executive
Officer or the board of directors may designate.

     2.   Term. The initial term of this Agreement shall begin as of the date
first written above and end on the second anniversary of that date, unless
sooner terminated in accordance with Section 6 below. Thereafter, this Agreement
shall automatically renew from year to year for successive one-year terms (a)
unless either party gives the other party written notice of that party's intent
not to renew this Agreement at least 120 days before the expiration of its
current term or (b) the Agreement is terminated in accordance with Section 6
below.

     3.   Compensation and Expenses.

          3.1  Salary.  As compensation for services under this Agreement, the
Company shall pay to Employee a regular salary of $12,500.00 per month.  Subject
to the provisions of Section 6.4 hereof, such salary may be adjusted from time
to time in the discretion of the board of directors.  Payment shall be made on a
bi-weekly basis, less all amounts required by law or authorized by Employee to
be withheld or deducted.

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          3.2  Bonus.  The Company shall establish an executive bonus plan, on
such terms as may be approved by the board of directors or its executive
compensation committee.  In addition to the salary described in Section 3.1
above, Employee shall be entitled to participate in the executive bonus plan.

          3.3  Long-Term Incentive.  To the extent otherwise eligible, Employee
shall be entitled to participate in accordance with the terms of the plan in any
long-term incentive plan that may from time to time be adopted by the board of
directors or its executive compensation committee, in its sole discretion.

          3.4  Additional Employee Benefits.  To the extent otherwise eligible,
Employee shall be entitled to receive or participate in any additional benefits,
including without limitation medical and dental insurance programs, profit
sharing or pension plans, and medical reimbursement plans, which may from time
to time be made available by the Company to corporate officers.  The Company may
change or discontinue such benefits at any time in its sole discretion.

          3.5  Expenses.

               3.5.1  Job-Related. The Company shall reimburse Employee for all
reasonable and necessary expenses incurred in carrying out his duties under this
Agreement, subject to compliance with the Company's reasonable policies relating
to expense reimbursement.

               3.5.2  House Purchase. The Company shall purchase, or arrange for
a third party to purchase, Employee's house located in Portland, Oregon, at a
purchase price equal to the average of three independent appraisals of the value
of Employee's house or such other price as agreed to in writing by the Company
and Employee. The Company shall pay the cost of the appraisals. The Company
shall further pay all mortgage payments on the house, if any, that become due
between the date of the relocation of the Company's headquarters to Pennsylvania
and the closing date of the purchase of Employee's Portland, Oregon, house.

               3.5.3  Relocation Allowance. The Company shall pay Employee a
one-time relocation allowance of $30,000 upon relocation of his residence to
Pennsylvania.

               3.5.4  Tax Provision. To the extent mortgage payments under
Section 3.5.2 or the payment under Section 3.5.3 is includable in Employee's net
taxable income, after taking into account the deductibility of mortgage
interest, the Company shall pay Employee an additional amount so that the amount
paid to him, less taxes at Employee's effective marginal tax rate, equals the
amount required to be paid to or for him under those sections.

          3.6  Fees.  All compensation earned by Employee, other than pursuant
to this Agreement, as a result of services performed on behalf of the Company or
as a result of or arising out of any work done by Employee in any way related to
the scientific or business activities of the Company shall belong to the
Company.  Employee shall pay or deliver such compensation to the Company
promptly upon receipt.  For the purposes of this provision, "compensation" shall
include, but is not limited to, all professional and nonprofessional fees,
lecture fees, expert testimony fees, publishing fees, royalties, and any related
income, earnings,

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or other things of value; and "scientific or business activities of the Company"
shall include, but not be limited to, any project or projects in which the
Company is involved and any subject matter that is directly or indirectly
researched, tested, developed, promoted, or marketed by the Company.

     4.   Stock Options. Employee shall be entitled to participate in the
Company stock option plan. The number of stock options that are granted to
Employee under the plan shall be determined by the board of directors or its
executive compensation committee.

     5.   Business Protection Agreement. In consideration of the stock option
grant described in Section 4, and other good and valuable consideration,
Employee and the Company are concurrently entering a Business Protection
Agreement. Employee's compliance with the terms of the Business Protection
Agreement, including without limitation the noncompetition provisions of the
Business Protection Agreement, is a material requirement of this Agreement.
Employee acknowledges that his employment on the terms stated in this Agreement
constitutes a bona fide advancement.

     6.   Termination.

          6.1  Termination Upon Death. This Agreement shall terminate
immediately upon Employee's death.

          6.2  Termination by Employee.  Employee may terminate his employment
under this Agreement by 60 days' written notice to the Company.

          6.3  Termination by the Company for Cause.  Employee's employment
under this Agreement may be terminated by the Company at any time for cause.
Only the following actions, failures, or events by or affecting Employee shall
constitute "cause" for termination of Employee by the Company:  (i) willful and
continued failure by Employee to substantially perform his duties provided
herein after a written demand for substantial performance is delivered to
Employee by the chairman of the board of the Company, which demand identifies
with reasonable specificity the manner in which Employee has not substantially
performed his duties, and Employee's failure to comply with such demand within a
reasonable time; (ii) the engaging by Employee in gross misconduct or gross
negligence materially injurious to the Company; (iii) the commission of any act
in direct competition with or materially detrimental to the best interests of
the Company; or (iv) Employee's conviction of having committed a felony.
Notwithstanding the foregoing, Employee shall not be deemed to have been
terminated by the Company for cause unless and until there shall have been
delivered to him a copy of a resolution duly adopted by the affirmative vote of
not less than a majority of the entire membership of the board of directors of
the Company finding that, in the good faith opinion of the board of directors,
the Company has cause for the termination of the employment of Employee as set
forth in any of clauses (i) through (iv) above and specifying the particulars
thereof in reasonable detail.  The findings of the board of directors shall not
be binding on the arbitrators or other finders of fact in connection with any
litigation or dispute arising out of this Agreement.

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          6.4  Termination by the Company Without Cause.  The Company may
terminate Employee's employment under this Agreement without cause by written
notice to Employee.  Employee may (but shall not be required to) elect to treat
any of the following events as a termination without cause, provided Employee
acts within 60 days of the event:

               6.4.1  A material breach of this Agreement by the Company and a
failure by the Company to cure the breach within 30 days after Employee has
given written notice of the breach to the board of directors.

               6.4.2  A reduction in Employee's salary below the amount stated
in Section 3.1 (except as part of and in proportion to a reduction in all
executive officers' salaries) or a change in Employee's title or a substantial
diminution in Employee's duties below those stated in this Agreement.

               6.4.3  A "Change of Control" of the Company. For purposes of this
Agreement, a "Change of Control" shall mean a change of control of a nature that
would be required to be reported in response to Item 6(e) of Schedule 14A of
Regulation 14A as in effect on the date hereof pursuant to the Securities
Exchange Act of 1934 (the "Exchange Act"); provided that, without limitation,
such a change of control shall be deemed to have occurred at such time as (i)
any Acquiring Person hereafter becomes the "beneficial owner" (as defined in
Rule 13d-3 under the Exchange Act), directly or indirectly, of 30 percent or
more of the combined voting power of Voting Securities; (ii) during any period
of 12 consecutive calendar months, individuals who at the beginning of such
period constitute the board of directors cease for any reason to constitute at
least a majority thereof unless the election, or the nomination for election, by
the Company's shareholders of each new director was approved by a vote of at
least a majority of the directors then still in office who were directors at the
beginning of the period; (iii) there shall be consummated (a) any consolidation
or merger of the Company in which the Company is not the continuing or surviving
corporation or pursuant to which Voting Securities would be converted into cash,
securities, or other property, other than a merger of the Company in which the
holders of Voting Securities immediately prior to the merger have the same, or
substantially the same, proportionate ownership of common stock of the surviving
corporation immediately after the merger, or (b) any sale, lease, exchange, or
other transfer (in one transaction or a series of related transactions) of all,
or substantially all, of the assets of the Company; or (iv) approval by the
shareholders of the Company of any plan or proposal for the liquidation or
dissolution of the Company. For purposes of this Agreement, "Acquiring Person"
means any person or related persons which constitute a "group" for purposes of
Section 13(d) and Rule 13d-5 under the Exchange Act, as such Section and Rule
are in effect as of the date of this Agreement; provided, however, that the term
Acquiring Person shall not include: (i) the Company or any of its subsidiaries;
(ii) any employee benefit plan of the Company or any of its subsidiaries; (iii)
any entity holding voting capital stock of the Company for or pursuant to the
terms of any such employee benefit plan; or (iv) any person or group solely
because such person or group has voting power with respect to capital stock of
the Company arising from a revocable proxy or consent given in response to a
public proxy or consent solicitation made pursuant to the Exchange Act. For
purposes of this Agreement, "Voting Securities" means the Company's issued and
outstanding securities ordinarily having the right to vote at elections for the
Company's board of directors.

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          6.5  Compensation Upon Termination.

               6.5.1  Termination Under Section 6.1, 6.2, or 6.3. In the event
of a termination of Employee's employment under Sections 6.1, 6.2, or 6.3,
Employee's regular compensation pursuant to Section 3.1 shall be prorated and
payable until the date of termination and Employee shall be paid any bonus that
has been approved but not yet paid.

               6.5.2  Termination Under Section 6.4. In the event of a
termination of Employee's employment by the Company without cause as provided in
Section 6.4, Employee shall continue to be paid the salary provided in Section
3.1 for the greater of (a) 12 months, (b) the remaining term of this Agreement,
or (c) 24 months if Employee elects to treat an event described in Section 6.4.3
as a termination without cause, from the date of notice of such termination of
employment or the date of such event, in the manner and at the times at which
regular compensation was paid to Employee during the term of his employment
under this Agreement, except that if Employee elects to treat an event described
in Sections 6.4.1, 6.4.2, or 6.4.3 as a termination without cause but continues
to work for the Company or any of its subsidiaries, then any amounts Employee
receives as compensation following the event shall be credited against the
amounts payable to Employee under this section. In no other respect shall the
amount of any payment provided for in this section be reduced by any
compensation or benefits earned by employee as a result of employment after his
termination. As a condition to receipt of the compensation described in the
first sentence of this Section 6.5.2, Employee shall sign and deliver a release
agreement, in form and substance satisfactory to the Company and Employee,
releasing all claims related to Employee's employment. The Company's obligation
to pay the amounts stated in this section shall terminate if Employee fails to
comply with the Business Protection Agreement within the applicable time period
stated in the first sentence of this section.

     7.   Remedies. The respective rights and duties of the Company and Employee
under this Agreement are in addition to, and not in lieu of, those rights and
duties afforded to and imposed upon them by law or at equity.

     8.   Severability of Provisions. The provisions of this Agreement are
severable, and if any provision hereof is held invalid or unenforceable, it
shall be enforced to the maximum extent permissible, and the remaining
provisions of the Agreement shall continue in full force and effect.

     9.   Nonwaiver. Failure by either party at any time to require performance
of any provision of this Agreement shall not limit the right of the party
failing to require performance to enforce the provision. No provision of this
Agreement may be waived by either party except by a writing signed by that
party. A waiver of any breach of a provision of this Agreement shall be
construed narrowly and shall not be deemed to be a waiver of any succeeding
breach of that provision or a waiver of that provision itself or of any other
provision.

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     10.  Arbitration.

          10.1 Claims Covered.  All claims or controversies, except for those
excluded by Section 10.2 ("claims"), whether or not arising out of Employee's
employment (or its termination), that the Company may have against the Employee
or that Employee may have against the Company or against its officers,
directors, employees or agents, in their capacity as such or otherwise, shall be
resolved as provided in this Section 10.  Claims covered by this Section 10
include, but are not limited to, claims for wages or other compensation due;
claims for breach of any contract or covenant (express or implied); tort claims;
claims for discrimination (including, but not limited to, race, sex, sexual
orientation, religion, national origin, age, marital status, or disability);
claims for benefits (except where an employee benefit or pension plan specifies
that its claims procedure shall culminate in an arbitration procedure different
from this one), and claims for violation of any federal, state, or other
governmental law, statute, regulation, or ordinance, except as provided in
Section 10.2.

          10.2 Non-Covered Claims.  Claims arising out of the Business
Protection Agreement and workers' compensation or unemployment compensation
benefits are not covered by this Section 10.  Non-covered claims include but are
not limited to claims by the Company for injunctive and/or other equitable
relief for unfair competition and/or the use and/or unauthorized disclosure of
trade secrets or confidential information, as to which Employee understands and
agrees that the Company may seek and obtain relief from a court of competent
jurisdiction.

          10.3 Required Notice of All Claims and Statute of Limitations.
Company and Employee agree that the aggrieved party must give written notice of
any claim to the other party within one year of the date the aggrieved party
first has knowledge of the event giving rise to the claim; otherwise the claim
shall be void and deemed waived even if there is a federal or state statute of
limitations which would have given more time to pursue the claim.  The written
notice shall identify and describe the nature of all claims asserted and the
facts upon which such claims are based.

          10.4 Arbitration Procedures.  Any arbitration shall be conducted in
accordance with the then-current Model Employment Arbitration Procedures of the
American Arbitration Association ("AAA"), modified to substitute for AAA
actions, the United States Arbitration and Mediation Service ("USA&MS"), before
an arbitrator who is licensed to practice law in the state of Pennsylvania (the
"Arbitrator").  The arbitration shall take place in or near Bethlehem,
Pennsylvania.

               10.4.1 Selection of Arbitrator. The USA&MS shall give each party
a list of 11 arbitrators drawn from its panel of labor-management dispute
arbitrators. Each party may strike all names on the list it deems unacceptable.
If only one common name remains on the lists of all parties, that individual
shall be designated as the Arbitrator. If more than one common name remains on
the lists of all parties, the parties shall strike names alternately until only
one remains. The party who did not initiate the claim shall strike first. If no
common name remains on the lists of all parties, the USA&MS shall furnish an
additional list or lists until an Arbitrator is selected.

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               10.4.2 Applicable Law. The Arbitrator shall apply the substantive
law (and the law of remedies, if applicable) specified in this Agreement or
federal law, or both, as applicable to the claim(s) asserted. The Arbitrator,
and not any federal, state, or local court or agency, shall have exclusive
authority to resolve any dispute relating to the interpretation, applicability,
enforceability or formation of this Agreement, including but not limited to any
claim that all or any part of this Agreement is void or voidable. The
arbitration shall be final and binding upon the parties, except as provided in
this Agreement.

               10.4.3 Authority. The Arbitrator shall have jurisdiction to hear
and rule on pre-hearing disputes and is authorized to hold pre-hearing
conferences by telephone or in person as the Arbitrator deems necessary. The
Arbitrator shall have the authority to entertain a motion to dismiss and/or a
motion for summary judgment by any party and shall apply the standards governing
such motions under the Federal Rules of Civil Procedure. The Arbitrator shall
render an award and opinion in the form typically rendered in labor
arbitrations.

               10.4.4 Representation. Any party may be represented by an
attorney or other representative selected by the party.

               10.4.5 Discovery.  Each party shall have the right to take the
deposition of one individual and any expert witness designated by another party.
Each party also shall have the right to make requests for production of
documents to any party.  The subpoena right specified below shall be applicable
to discovery pursuant to this paragraph.  Additional discovery may be had only
where the Arbitrator selected pursuant to this Agreement so orders, upon a
showing of substantial need.  At least 30 days before the arbitration, the
parties must exchange lists of witnesses, including any experts, and copies of
all exhibits intended to be used at the arbitration.  Each party shall have the
right to subpoena witnesses and documents for the arbitration.

               10.4.6 Reporter. Either party, at its expense, may arrange for
and pay the cost of a court reporter to provide a stenographic record of
proceedings.

               10.4.7 Post-Hearing Briefs. Either party, upon request at the
close of hearing, shall be given leave to file a post-hearing brief. The time
for filing such a brief shall be set by the Arbitrator.

          10.5 Enforcement.  Either party may bring an action in any court of
competent jurisdiction to compel arbitration under this Agreement and to enforce
an arbitration award.  Except as otherwise provided in this Agreement, both the
Company and Employee agree that neither shall initiate or prosecute any lawsuit
(other than for a non-covered claim) in any way related to any claim covered by
this Agreement.  A party opposing enforcement of an award may not do so in an
enforcement proceeding, but must bring a separate action in any court of
competent jurisdiction to set aside the award, where the standard of review will
be the same as that applied by an appellate court reviewing a decision of a
trial court sitting without a jury.

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          10.6 Arbitration Fees and Costs.  Company and Employee shall equally
share the fees and costs of the Arbitrator.  Each party will deposit funds or
post other appropriate security for its share of the Arbitrator's fee, in an
amount and manner determined by the Arbitrator, 10 days before the first day of
hearing.  Each party shall pay for its own costs and attorneys' fees, if any,
provided that the Arbitrator, in its sole discretion, may award reasonable fees
to the prevailing party in a proceeding.

     11.  General Terms and Conditions. This Agreement constitutes the entire
understanding of the parties relating to the employment of Employee by the
Company, and supersedes and replaces all written and oral agreements heretofore
made or existing by and between the parties relating thereto. This Agreement
shall be construed in accordance with the laws of the state of Pennsylvania,
without regard to any contrary conflicts of laws rules thereof. This Agreement
shall inure to the benefit of any successors or assigns of the Company. All
captions used herein are intended solely for convenience of reference and shall
in no way limit any of the provisions of this Agreement. Employee acknowledges
that he signed this Agreement upon his initial employment with the Company.

     The parties have executed this Employment Agreement as of the date stated
above.

                                       ORASURE TECHNOLOGIES, INC.




_______________________________        By: ______________________________
William D. Block
                                       Title: ___________________________

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                       EXHIBIT A to Employment Agreement

         Specific Duties of Employee as Senior Vice President of Sales

          Employee as the Senior Vice President of Sales of the Company shall be
responsible for
________________________________________________________________________________
________________________________________________________________________________
_______________________________________________________________________________.

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