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                                                                   EXHIBIT 10.30

                              AMENDED AND RESTATED
                                 REVOLVING NOTE

$22,500,000                                                     Cincinnati, Ohio
                                                        Dated: September 20,2001
                                                         Restated: August 5,2004

         MERIDIAN BIOSCIENCE, INC., an Ohio corporation, MERIDIAN BIOSCIENCE
CORPORATION an Ohio corporation ("Corp."), OMEGA TECHNOLOGIES, INC., an Ohio
corporation ("Omega"), GULL LABORATORIES, INC. a Utah corporation ("Gull"),
BIODESIGN INCORPORATED, a Maine corporation and VIRAL ANTIGENS, INC., a
Tennessee corporation ("VAI") (collectively and jointly and severally the
"Borrowers" and individually a "Borrower"), for value received, hereby promises
to pay to the order of FIFTH THIRD BANK (the "Bank") at its offices, 38 Fountain
Square Plaza, Cincinnati, Ohio 45263, in lawful money of the United States
of America and in immediately available funds, the principal sum of $22,500,000
or such lesser unpaid principal amount as may be advanced by the Bank pursuant
to the terms of the Loan and Security Agreement dated September 20,2001 by and
among the Borrowers and the Bank, as same may be amended from time to time (the
"Agreement"). This Note shall mature and be payable in full on September
15, 2007, or such later date as may be determined and agreed upon between Bank
and Borrowers pursuant to the Agreement.

         The principal balance hereof outstanding from time to time shall bear
interest as set forth in the Agreement. Interest will be calculated based on a
360-day year and charged for the actual number of days elapsed, and will be
payable as set forth in the Agreement. After the occurrence of an Event of
Default, this Note shall bear interest (computed and adjusted in the same
manner, and with the same effect, as interest hereon prior to maturity), payable
on demand, at a rate per annum equal to six percent (6%) above the rate that
would otherwise be in effect, until paid, and whether before or after the entry
of judgment hereon.

         The principal amount of each loan made by the Bank and the amount of
each prepayment made by the Borrowers shall be recorded by the Bank on the
schedule attached hereto or in the regularly maintained data processing
records of the Bank. The aggregate unpaid principal amount of all loans set
forth in such schedule or in such records shall be presumptive evidence of the
principal amount owing and unpaid on this Note. However, failure by Bank to make
any such entry shall not limit or otherwise affect Borrowers' obligations under
this Note or the Agreement.

         This Note is the Revolving Note referred to in the Agreement, and is
entitled to the benefits, and is subject to the terms, of the Agreement. The
principal of this Note is prepayable in the amounts and under the circumstances,
and its maturity is subject to acceleration upon the terms, set forth in the
Agreement. Except as otherwise expressly provided in the Agreement, if any
payment on this Note becomes due and payable on a day other than one on which
Bank is open for business (a "Business Day"), the maturity there of shall be
extended to the next Business Day, and interest shall be payable at the rate
specified herein during such extension period.

         In no event shall the interest rate on this Note exceed the highest
rate permissible under any law which a court of competent jurisdiction shall, in
a final determination, deem applicable hereto. In the event that a court
determines that Bank has received interest and other charges under this Note in
excess of the highest permissible rate applicable hereto, such excess shall be
deemed received on account of, and shall automatically be applied to reduce the
amounts due to Bank from the Borrowers under this Note, other than interest, and
the provisions hereof shall be deemed amended to provide for the highest
permissible rate. If there are no such amounts outstanding, Bank shall refund to
Borrowers such excess.

         Borrowers and all endorsers, sureties, guarantors and other persons
liable on this Note hereby waive presentment for payment, demand, notice of
dishonor, protest, notice of protest and all other demands and notices in
connection with the delivery, performance and enforcement of this Note, and
consent to one or more renewals or extensions of this Note.

         This Note may not be changed orally, but only by an instrument in
writing.
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         This Note is being delivered in, is intended to be performed in, shall
be construed and enforceable in accordance with, and be governed by the internal
laws of, the State of Ohio without regard to principles of conflict of laws.
Borrowers agree that the State and federal courts in Hamilton County, Ohio or
any other court in which Bank initiates proceedings have exclusive jurisdiction
over all matters arising out of this Note, and that service of process in any
such proceeding shall be effective if mailed to Borrowers at their address
described in the Notices section of the Agreement. BORROWERS HEREBY WAIVE THE
RIGHT TO TRIAL BY JURY OF ANY MATTERS ARISING OUT OF THIS NOTE.

MERIDIAN BIOSCIENCE                           MERIDIAN BIOSCIENCE, INC.
CORPORATION

By: /s/ MELISSA LUEKE                         By:  /s/ MELISSA LUEKE
    ----------------------                         ---------------------------

Its: CFO                                      Its: CFO
    ----------------------                         ---------------------------

OMEGA TECHNOLOGIES, INC.                      GULL LABORATORIES, INC.

By: /s/ MELISSA LUEKE                         By:  /s/ MELISSA LUEKE
    ----------------------                         ---------------------------

Its: CFO                                      Its: CFO
    ----------------------                         ---------------------------

BIODESIGN INCORPORATED                        VIRAL ANTIGENS, INC.

By: /s/ MELISSA LUEKE                         By:  /s/ MELISSA LUEKE
    ----------------------                         ---------------------------

Its: CFO                                      Its: Treasurer-Secretary
    ----------------------                         ---------------------------

                                       2<PAGE>

                                                                  EXHIBIT (4)(c)

October 26, 2004

Ms. Suzanne Swits

Wells Fargo Bank, N.A.
Vice President Account Management
Shareowner Services
161 North Concord Exchange
South St. Paul, MN 55075-1139

Subject: Appointment of Wells Fargo as Rights Agent

Ms. Swits:

By this letter, I, Douglas M. Ventura, Executive Vice President Operations,
General Counsel and Secretary, appoint Wells Fargo Bank, N.A., as Rights Agent
for The Reynolds and Reynolds Company Amended and Restated Shareholder Rights
Agreement (the"Rights Agreement"), effective as of the date of your acceptance
on page 2 of this letter. This appointment is made pursuant to Section 21 of the
Rights Agreement. The appointment is being made following the termination of
Mellon Investor Services, LLC as Rights Agent under the same Rights Agreement.

We appreciate your agreeing to serve as our Rights Agent, and we look forward to
continuing to do business with you in your capacity as Rights Agent and Transfer
Agent.

Please acknowledge your acceptance of this appointment by signature below, and
return one original of this letter to me at the address above.

Sincerely,

Douglas M. Ventura

DMV/ksb

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Suzanne Swits
Page 2
October 26, 2004

I hereby acknowledge and accept this appointment on behalf of Wells Fargo Bank,
N.A.:

Name: _______________________________     Signature: ___________________________

Title:_________________________________________ Date:___________________________<PAGE>
                                                                 EXHIBIT (10)(g)

                      [Form of Retention Letter Agreements]

                                  July 20, 2004

[Dale Medford]
[Douglas M. Ventura]
[Michael J. Berry]
[Eleven Other Officers]
Mailstop: OHA2 03-80

Dear _______:

It is my pleasure to notify you that as of July 14, 2004 the Board of Directors
of Reynolds & Reynolds has included you with a select group of key executives
who will participate in the newly approved Retention Plan.

The reason you are included in this Retention Plan is that the Board and I feel
the Reynolds executive team is strong and will be a key factor in moving us
through the transition. Your contribution to this team is critical. We need you
engaged in the business problems at hand and comfortable that your employment
status is secure. This Plan, as described below, will provide that security to
you so you can help set the stage for our future growth and accomplishments.

This Plan consists of two components, the retention award and the enhanced
severance benefit. The retention award is a combination of cash and restricted
shares that will be delivered to you on the date six months subsequent to our
new CEO's first day of work. This award is contingent on your continued
employment with Reynolds throughout the selection period for the new CEO and the
following six month transition period.

Your award will be:

        Cash -                         [$125,000 in the case of Medford,
                                       Ventura and Berry]

        Restricted Stock Award -       [6,000 shares in the case of Medford,
                                       Ventura and Berry]

In addition, your severance benefit has been increased to provide you with
additional benefits in case business conditions require you to be released, a
change to your base pay, bonus potential (different than others at your current
level), or geographic location. This increased benefit will begin now and be in
effect through one year after the new CEO is hired and will provide you with 1
month/year of service with a one year minimum and a two year maximum.

Again, let me emphasize, your commitment to Reynolds and our commitment to you
is mutual. As a team we can drive Reynolds to become the premier company we have
the potential to be.

Thank you in advance for your dedication to getting it done.

Sincerely,

Phil Odeen

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                                 August 16, 2004

[To _______]
Mailstop:

Dear____:

This letter provides further details regarding the terms of your retention award
and benefit described in my letter of July 20, 2004 [IN THE CASE OF MEDFORD,
VENTURA AND BERRY: (the "retention letter"). Please note that a description of
the benefits under this letter and the retention letter will be disclosed in the
Company's 10-K for the fiscal year ended September 30, 2004, but your individual
letter will not be filed. Your award will be further described in the 2005 proxy
statement, including the amount of cash and restricted stock to be awarded to
you.]

[IN THE CASE OF MEDFORD, VENTURA AND BERRY: Under the securities laws, a grant
of restricted stock, even though not vested, is considered an acquisition of
stock. Therefore, you will also be required to file a Form 4 by the end of the
business day on August 18th. Stock Plan Administration will file the Form 4 on
your behalf.]

As you know, the Plan consists of two components, the retention award and the
enhanced severance benefit. The effective date of both is August 16, 2004. The
retention award is a combination of cash and restricted stock. The restricted
stock award will be issued pursuant to The Reynolds and Reynolds Company 2004
Executive Stock Incentive Plan.

As a point of clarification, for purposes of the enhanced severance benefit, the
following applies:

- A "change in control" will not, in and of itself, be deemed a "business
condition" that entitles you to the enhanced severance benefit. [IN THE CASE OF
MEDFORD, VENTURA, BERRY AND TWO OTHER OFFICERS: Moreover, if you are a party to
a change of control agreement or other arrangement with the company and a change
of control occurs after the company's hiring of a new CEO and, as a result of
the change in control, you are released, you will be entitled to receive only
that benefit, if any, under the change of control agreement or arrangement and
will not be entitled to receive the enhanced severance benefit.]

- In determining whether a "change to your base pay" or "bonus potential" has
occurred, the company will look to the amount of your base pay or potential
bonus in effect immediately preceding August 16, 2004.

- A change in "geographic location" will not be deemed to occur for purposes of
receiving the enhanced severance benefit if the change results from your
request.

- You will not be entitled to the enhanced severance benefit upon your death,
disability (unless short-term disability), voluntary termination, or, in any
case, as a result of a termination for cause.

As a team we can drive Reynolds to become the premier company we have the
potential to be. Thank you in advance for your dedication to getting it done.

Sincerely,
Phil Odeen

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