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                                                                   EXHIBIT 10.27

                            MERIDIAN BIOSCIENCE, INC.

                        INCENTIVE STOCK OPTION AGREEMENT

         1.       Meridian Bioscience, Inc. hereby grants to the Optionee named
below an incentive stock option to purchase, in accordance with and subject to
the terms and restrictions of the Company's 1996 Stock Option Plan as Amended
and Restated, a copy of which is attached hereto and made part hereof, the
number of shares of Common Stock of the Company at the price set forth below as
follows:

                  Optionee: XXX

                  No. of Shares Covered by Option: **XXX**

                  Option Price Per Share: **$6.30**

                  Date of Grant: November 19, 2002

                  Expiration Date: November 18, 2012

         2.       This option is granted pursuant to Meridian's 1996 Stock
Option Plan as Amended and Restated pursuant to the authority given to the
Committee in Article 5 which entitles the Committee to grant options on such
terms and conditions as the Committee may determine and the authority in Section
6.1 wherein the Committee may establish different exercise schedules and impose
other conditions upon exercise for any particular option or groups of options.

         3.       This option shall not vest until November 19, 2011 except it
shall become fully vested and exercisable upon occurrence of any of the
following:

                  3.1      The net income, as determined in accordance with
         generally accepted accounting principles, exceeds $6,800,000 for fiscal
         2003; or

                  3.2      Substantially all of the assets of the Company are
         sold in fiscal 2003; or

                  3.3      As otherwise provided in the 1996 Stock Option Plan
         as Amended and Restated.

         4.       To the extent that the percentage of this Option which becomes
exercisable is not exercised in any given year it may be exercised in the
subsequent years of the term of this Option. The Option granted under this
Agreement may not be exercised for less than ten shares at any time, or the
remaining shares then purchasable under the Option if less than ten. In no event
may this Option be exercised after the expiration of ten years from the date of
grant of this Option.

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         5.       This Option may be exercised for the number of shares
specified by written notice delivered to the Secretary of the Company
accompanied by full payment, in the manner and subject to the conditions set
forth in the Plan, for the number of shares in respect of which it is exercised.
If any applicable law or regulation requires the Company to take any action with
respect to the shares specified in such notice, or if any action remains to be
taken under the Articles of Incorporation or Code of Regulations of the Company
to effect due issuance of the shares, the Company shall take such action and the
date for delivery of such stock shall be extended for the period necessary to
take such action.

         6.       This Option is not transferable other than by will or by
operation of the laws of descent and distribution or as otherwise provided in
the attached 1996 Stock Option Plan as Amended and Restated and is subject to
termination as provided in the Plan.

         IN WITNESS WHEREOF, the Company has executed this Agreement on this
19th day of November, 2002.

                                    BY /s/ Melissa Lueke
                                       -----------------------------------------
                                    Name: Melissa Lueke
                                    Its: Vice President, Chief Financial Officer

         I hereby accept the above Option to purchase shares of Common Stock of
Meridian Bioscience, Inc. granted above in accordance with and subject to the
terms and conditions of this Agreement and its 1996 Stock Option Plan as Amended
and Restated and agree to be bound thereby.

-----------------------------           ----------------------------------------
 Date Accepted                                            XXX
                                                      Optionee<PAGE>

                                                                   EXHIBIT 10.28

                    AGREEMENT CONCERNING DISABILITY AND DEATH

         AGREEMENT entered into this 10th day of September, 2003 by and between
MERIDIAN BIOSCIENCE, INC. and WILLIAM J. MOTTO.

         WHEREAS, Motto has been employed by Meridian and has rendered faithful
and competent services to Meridian; and

         WHEREAS, Meridian and Motto desire to enter into an Agreement to
replace their Split Dollar Agreements dated February 8, 1996 and May 1, 1995;
and

         WHEREAS, Meridian desires to have a death and disability program for
Motto to provide protection to Motto and his family should his death or
disability occur while employed by Meridian; and

         WHEREAS, the Compensation Committee of Meridian's Board of Directors
approved on April 23, 2003 a special death and disability benefits program for
Motto and approved the specific form of this Agreement by written action on
September 3, 2003;

         NOW, THEREFORE, in consideration of the mutual covenants and agreements
hereafter set forth, the parties agree as follows:

         1.       Meridian shall make a monthly payment to Motto for up to 60
months if Motto meets the definition of "Disability" in Section 5 below while
employed by Meridian. The gross amount of each monthly payment shall be equal to
60% of the average total annual salary and bonus paid by Meridian to Motto
during Meridian's three fiscal years ending immediately before Motto's
Disability commenced. Any such payments to Motto shall be reduced by the gross
amount of any payments made to Motto through any group or other disability
insurance policy or program maintained by Meridian. Provided, however, that no
such monthly payment shall be made after either the month of Motto's death or
the month that Motto ceases to meet the definition of "Disability" in Section 5
below. Meridian may fulfill its obligation under this Section by purchasing
insurance coverage.

         2.       If Motto dies while employed by Meridian or while receiving
the Disability payments described in Section 1 above, Meridian shall pay $1
million to the designated beneficiaries of Motto or, if none, to Motto's estate,
reduced by the gross amount of any payments made as Disability compensation
pursuant to Section 1 above and also reduced by any other insurance proceeds on
Motto's life received by Motto's estate or beneficiaries from any policies of
life insurance maintained by Meridian.

         3.       Meridian shall maintain health insurance coverage for Motto
and his spouse and the survivor of them for a period of five years after Motto's
employment with Meridian ends because of Motto's death or Disability. The health
insurance coverage shall be at levels comparable for executives in Motto's
position at the time that Motto's employment with Meridian has ended as
determined by Meridian. This shall satisfy Meridian's obligation to provide
continuation coverage to Motto and his spouse under Section 4980B of the
Internal Revenue Code of 1986.

         4.       Motto or, after his death, his estate or heirs, shall have the
right to cause Meridian, on three separate occasions, to register for public
sale under the Securities Act of 1933 those shares of Meridian Common Stock
beneficially owned by Motto during his lifetime or at his death which may not,
at the time of request, be publicly sold without registration. The right to
request such registration shall commence upon the execution of this Agreement
and end five years after Motto's death. This registration

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right is conditioned upon Meridian being able to utilize the SEC's short-form
registration statement, Form S-3, or its equivalent. Meridian shall bear all
costs of the registration except brokerage commissions which shall be the
responsibility of Motto.

         5.       For purposes of this Agreement, "Disability" shall be defined
as in the group disability policy under which Meridian covers Motto or his
successor. In the absence of such a policy, "Disability" shall mean an injury or
disease which was not intentionally self-inflicted and which Meridian at its
sole discretion, determines, on the basis of such evidence and information as it
deems satisfactory, causes Motto to be completely and indefinitely incapable of
performing his regular duties for Meridian.

         6.       Motto shall be responsible for all taxes, including, without
limitation, federal, state or local taxes, related to any action taken by
Meridian pursuant to this Agreement.

         7.       The parties' Split Dollar Agreements dated February 8, 1996
and May 1, 1995 shall be deemed cancelled by Meridian and Motto effective upon
the execution of this Agreement, and Motto and Meridian promptly shall notify
The Fifth Third Bank, trustee under Motto's Irrevocable Life Insurance Trust
Agreement dated March 9, 1992.

         8.       This Agreement may not be amended or modified except by
written instrument signed by Meridian and Motto.

         9.       This Agreement shall be binding upon the parties hereto and
their successors, assigns, executors, administrators and beneficiaries.

         10.      This Agreement shall be subject to and construed according to
the laws of the State of Ohio.

         IN WITNESS WHEREOF, Meridian and Motto have execute this Agreement on
the day and year first above written.

                                     MERIDIAN BIOSCIENCE, INC.

                                     BY: /s/ Melissa Lueke
                                        ----------------------------------------
                                         Melissa A. Lueke
                                         Vice President, Chief Financial Officer
                                         and Secretary

                                                /s/ William J.Motto
                                         ------------------------------------
                                                 William J. Motto

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