QUIDEL CORP /DE/
EX-10.1
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<DESCRIPTION>EX-10.1
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<p align="right" style="margin:0pt 0pt 12.0pt;text-align:right;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">Exhibit
10.1</font></b></p>

<p style="margin:0pt 0pt 24.0pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">June 19, 2007</font></p>

<p style="margin:0pt 0pt .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Richard C. Tarbox III</font></p>

<p style="margin:0pt 0pt .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">30 South Garnet Bend</font></p>

<p style="margin:0pt 0pt 12.0pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">The Woodlands, TX&#160; 77382</font></p>

<p style="margin:0pt 0pt 12.0pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Dear Ric:</font></p>

<p style="margin:0pt 0pt 12.0pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">We are pleased to extend
the following offer of employment to you:</font></p>

<table border="0" cellspacing="0" cellpadding="0" width="100%" style="border-collapse:collapse;font-family:Times New Roman;width:100.0%;">
 <tr style="page-break-inside:avoid;">
  <td width="6%" valign="top" style="padding:0pt .7pt 0pt 0pt;width:6.94%;">
  <p style="margin:0pt 0pt .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>
  </td>
  <td width="18%" valign="top" style="padding:0pt .7pt 0pt 0pt;width:18.86%;">
  <p style="font-size:10.0pt;margin:0pt 0pt .0001pt;"><!-- SET mrlNoTableShading -->Title:</p>
  </td>
  <td width="74%" valign="top" style="padding:0pt .7pt 0pt 0pt;width:74.2%;">
  <p style="margin:0pt 0pt .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">SVP, Business Development &amp; Corporate Planning</font></p>
  </td>
 </tr>
 <tr style="page-break-inside:avoid;">
  <td width="6%" valign="top" style="padding:0pt .7pt 0pt 0pt;width:6.94%;">
  <p style="margin:0pt 0pt .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  </td>
  <td width="18%" valign="top" style="padding:0pt .7pt 0pt 0pt;width:18.86%;">
  <p style="margin:0pt 0pt .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  </td>
  <td width="74%" valign="top" style="padding:0pt .7pt 0pt 0pt;width:74.2%;">
  <p style="margin:0pt 0pt .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  </td>
 </tr>
 <tr style="page-break-inside:avoid;">
  <td width="6%" valign="top" style="padding:0pt .7pt 0pt 0pt;width:6.94%;">
  <p style="margin:0pt 0pt .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>
  </td>
  <td width="18%" valign="top" style="padding:0pt .7pt 0pt 0pt;width:18.86%;">
  <p style="margin:0pt 0pt .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Reporting to:</font></p>
  </td>
  <td width="74%" valign="top" style="padding:0pt .7pt 0pt 0pt;width:74.2%;">
  <p style="margin:0pt 0pt .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Caren Mason, President &amp; CEO</font></p>
  </td>
 </tr>
 <tr style="page-break-inside:avoid;">
  <td width="6%" valign="top" style="padding:0pt .7pt 0pt 0pt;width:6.94%;">
  <p style="margin:0pt 0pt .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  </td>
  <td width="18%" valign="top" style="padding:0pt .7pt 0pt 0pt;width:18.86%;">
  <p style="margin:0pt 0pt .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  </td>
  <td width="74%" valign="top" style="padding:0pt .7pt 0pt 0pt;width:74.2%;">
  <p style="margin:0pt 0pt .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  </td>
 </tr>
 <tr style="page-break-inside:avoid;">
  <td width="6%" valign="top" style="padding:0pt .7pt 0pt 0pt;width:6.94%;">
  <p style="margin:0pt 0pt .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>
  </td>
  <td width="18%" valign="top" style="padding:0pt .7pt 0pt 0pt;width:18.86%;">
  <p style="margin:0pt 0pt .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Compensation:</font></p>
  </td>
  <td width="74%" valign="top" style="padding:0pt .7pt 0pt 0pt;width:74.2%;">
  <p style="margin:0pt 0pt .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">$260,000 annually</font></p>
  </td>
 </tr>
 <tr style="page-break-inside:avoid;">
  <td width="6%" valign="top" style="padding:0pt .7pt 0pt 0pt;width:6.94%;">
  <p style="margin:0pt 0pt .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  </td>
  <td width="18%" valign="top" style="padding:0pt .7pt 0pt 0pt;width:18.86%;">
  <p style="margin:0pt 0pt .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  </td>
  <td width="74%" valign="top" style="padding:0pt .7pt 0pt 0pt;width:74.2%;">
  <p style="margin:0pt 0pt .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  </td>
 </tr>
 <tr style="page-break-inside:avoid;">
  <td width="6%" valign="top" style="padding:0pt .7pt 0pt 0pt;width:6.94%;">
  <p style="margin:0pt 0pt .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>
  </td>
  <td width="18%" valign="top" style="padding:0pt .7pt 0pt 0pt;width:18.86%;">
  <p style="margin:0pt 0pt .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Annual Bonus:</font></p>
  </td>
  <td width="74%" valign="top" style="padding:0pt .7pt 0pt 0pt;width:74.2%;">
  <p style="margin:0pt 0pt .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">You will participate in the bonus plan with a target
  bonus of 40% at achievement of plan. Your eligibility for this plan will be
  prorated in 2007 for a full six months.</font></p>
  </td>
 </tr>
 <tr style="page-break-inside:avoid;">
  <td width="6%" valign="top" style="padding:0pt .7pt 0pt 0pt;width:6.94%;">
  <p style="margin:0pt 0pt .0001pt;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">&nbsp;</font></b></p>
  </td>
  <td width="18%" valign="top" style="padding:0pt .7pt 0pt 0pt;width:18.86%;">
  <p style="margin:0pt 0pt .0001pt;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">&nbsp;</font></b></p>
  </td>
  <td width="74%" valign="top" style="padding:0pt .7pt 0pt 0pt;width:74.2%;">
  <p style="margin:0pt 0pt .0001pt;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">&nbsp;</font></b></p>
  </td>
 </tr>
 <tr style="page-break-inside:avoid;">
  <td width="6%" valign="top" style="padding:0pt .7pt 0pt 0pt;width:6.94%;">
  <p style="margin:0pt 0pt .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>
  </td>
  <td width="18%" valign="top" style="padding:0pt .7pt 0pt 0pt;width:18.86%;">
  <p style="margin:0pt 0pt .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Equity:</font></p>
  </td>
  <td width="74%" valign="top" style="padding:0pt .7pt 0pt 0pt;width:74.2%;">
  <p style="margin:0pt 0pt .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">You will receive equity equal to $600,000 in value,
  with 50% in the form of options to purchase shares of common stock and the
  remaining 50% in the form of time-based restricted stock. The vesting
  schedule for these options will be 25% on the first year anniversary of the
  Option Grant Date and the remaining 75% will vest quarterly over the next
  three years thereafter. The purchase price will be the closing NASDAQ market
  price of QUIDEL&#146;s stock on your actual start date. The time-based restricted
  stock will vest 25% per year over a four-year period. Grant of the shares of
  restricted stock is subject to your waiver of provisions of your change in
  control agreement that provides for the automatic acceleration of the removal
  or lapse of restrictions on restricted shares.</font></p>
  </td>
 </tr>
 <tr style="page-break-inside:avoid;">
  <td width="6%" valign="top" style="padding:0pt .7pt 0pt 0pt;width:6.94%;">
  <p style="margin:0pt 0pt .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  </td>
  <td width="18%" valign="top" style="padding:0pt .7pt 0pt 0pt;width:18.86%;">
  <p style="margin:0pt 0pt .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  </td>
  <td width="74%" valign="top" style="padding:0pt .7pt 0pt 0pt;width:74.2%;">
  <p style="margin:0pt 0pt .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  </td>
 </tr>
 <tr style="page-break-inside:avoid;">
  <td width="6%" valign="top" style="padding:0pt .7pt 0pt 0pt;width:6.94%;">
  <p style="margin:0pt 0pt .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>
  </td>
  <td width="18%" valign="top" style="padding:0pt .7pt 0pt 0pt;width:18.86%;">
  <p style="margin:0pt 0pt .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Vacation Benefit:</font></p>
  </td>
  <td width="74%" valign="top" style="padding:0pt .7pt 0pt 0pt;width:74.2%;">
  <p style="margin:0pt 0pt .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">You will receive four weeks of vacation per year,
  accrued from your anniversary date.</font></p>
  </td>
 </tr>
 <tr style="page-break-inside:avoid;">
  <td width="6%" valign="top" style="padding:0pt .7pt 0pt 0pt;width:6.94%;">
  <p style="margin:0pt 0pt .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  </td>
  <td width="18%" valign="top" style="padding:0pt .7pt 0pt 0pt;width:18.86%;">
  <p style="margin:0pt 0pt .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  </td>
  <td width="74%" valign="top" style="padding:0pt .7pt 0pt 0pt;width:74.2%;">
  <p style="margin:0pt 0pt .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  </td>
 </tr>
 <tr style="page-break-inside:avoid;">
  <td width="6%" valign="top" style="padding:0pt .7pt 0pt 0pt;width:6.94%;">
  <p style="margin:0pt 0pt .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>
  </td>
  <td width="18%" valign="top" style="padding:0pt .7pt 0pt 0pt;width:18.86%;">
  <p style="margin:0pt 0pt .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Relocation:</font></p>
  </td>
  <td width="74%" valign="top" style="padding:0pt .7pt 0pt 0pt;width:74.2%;">
  <p style="margin:0pt 0pt .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">You will be eligible to receive up to $100,000 (net)
  in reimbursement for relocation expenses per the attached policy</font></p>
  </td>
 </tr>
</table>

<p style="line-height:1.0pt;margin:0pt 0pt 12.0pt;"><font size="1" face="Times New Roman">&nbsp;</font></p>

<br><hr size="3" width="100%" noshade color="#010101" align="center">

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<p style="margin:0pt 0pt .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Richard C. Tarbox III</font></p>

<p style="margin:0pt 0pt .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Offer Letter</font></p>

<p style="margin:0pt 0pt 12.0pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Page 2</font></p>

<table border="0" cellspacing="0" cellpadding="0" width="100%" style="border-collapse:collapse;font-family:Times New Roman;width:100.0%;">
 <tr style="page-break-inside:avoid;">
  <td width="6%" valign="top" style="padding:0pt .7pt 0pt 0pt;width:6.94%;">
  <p style="font-size:10.0pt;margin:0pt 0pt .0001pt;"><!-- SET mrlNoTableShading --></p>
  </td>
  <td width="18%" valign="top" style="padding:0pt .7pt 0pt 0pt;width:18.86%;">
  <p style="margin:0pt 0pt .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Severance:</font></p>
  </td>
  <td width="74%" valign="top" style="padding:0pt .7pt 0pt 0pt;width:74.2%;">
  <p style="margin:0pt 0pt .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">You will be entitled to a payment equivalent to half
  your annual salary (six months) in the event that your employment is severed
  without cause and for reasons not subject to change in control provisions.</font></p>
  </td>
 </tr>
 <tr style="page-break-inside:avoid;">
  <td width="6%" valign="top" style="padding:0pt .7pt 0pt 0pt;width:6.94%;">
  <p style="margin:0pt 0pt .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  </td>
  <td width="18%" valign="top" style="padding:0pt .7pt 0pt 0pt;width:18.86%;">
  <p style="margin:0pt 0pt .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  </td>
  <td width="74%" valign="top" style="padding:0pt .7pt 0pt 0pt;width:74.2%;">
  <p style="margin:0pt 0pt .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  </td>
 </tr>
 <tr style="page-break-inside:avoid;">
  <td width="6%" valign="top" style="padding:0pt .7pt 0pt 0pt;width:6.94%;">
  <p style="margin:0pt 0pt .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>
  </td>
  <td width="18%" valign="top" style="padding:0pt .7pt 0pt 0pt;width:18.86%;">
  <p style="margin:0pt 0pt .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Change in Control</font></p>
  </td>
  <td width="74%" valign="top" style="padding:0pt .7pt 0pt 0pt;width:74.2%;">
  <p style="margin:0pt 0pt .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>
  </td>
 </tr>
 <tr style="page-break-inside:avoid;">
  <td width="6%" valign="top" style="padding:0pt .7pt 0pt 0pt;width:6.94%;">
  <p style="margin:0pt 0pt .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>
  </td>
  <td width="18%" valign="top" style="padding:0pt .7pt 0pt 0pt;width:18.86%;">
  <p style="margin:0pt 0pt .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Provisions:</font></p>
  </td>
  <td width="74%" valign="top" style="padding:0pt .7pt 0pt 0pt;width:74.2%;">
  <p style="margin:0pt 0pt .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">You will be provided with change of control
  protection as outlined for other officers. Details of this protection are
  contained in the attached Agreement re: Change in Control.</font></p>
  </td>
 </tr>
 <tr style="page-break-inside:avoid;">
  <td width="6%" valign="top" style="padding:0pt .7pt 0pt 0pt;width:6.94%;">
  <p style="margin:0pt 0pt .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  </td>
  <td width="18%" valign="top" style="padding:0pt .7pt 0pt 0pt;width:18.86%;">
  <p style="margin:0pt 0pt .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  </td>
  <td width="74%" valign="top" style="padding:0pt .7pt 0pt 0pt;width:74.2%;">
  <p style="margin:0pt 0pt .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  </td>
 </tr>
 <tr style="page-break-inside:avoid;">
  <td width="6%" valign="top" style="padding:0pt .7pt 0pt 0pt;width:6.94%;">
  <p style="margin:0pt 0pt .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>
  </td>
  <td width="18%" valign="top" style="padding:0pt .7pt 0pt 0pt;width:18.86%;">
  <p style="margin:0pt 0pt .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Start Date:</font></p>
  </td>
  <td width="74%" valign="top" style="padding:0pt .7pt 0pt 0pt;width:74.2%;">
  <p style="margin:0pt 0pt .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">July, 2007, the exact date TBD</font></p>
  </td>
 </tr>
</table>

<p style="line-height:1.0pt;margin:0pt 0pt 12.0pt;"><font size="1" face="Times New Roman">&nbsp;</font></p>

<p style="margin:0pt 0pt 12.0pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">In
addition to the above, as a QUIDEL employee, you will be eligible to
participate in our benefits programs, which will take effect on your first day
of employment.&#160; A summary of these
benefits is enclosed.&#160; Details of these
benefit plans will be provided to you upon your employment.</font></p>

<p style="margin:0pt 0pt 12.0pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">As
a condition of employment with QUIDEL Corporation, you will be required to: (1)
read, sign and return one copy of the enclosed Invention and Confidential
Information Agreement;&#160; (2) within the
first three days of employment, you must provide documents from the enclosed
List of Acceptable Documents (I-9) which prove your identity and right to work
in the United States; and (3) read, sign and return one copy of page 5 of the
enclosed Employee Code of Conduct.</font></p>

<p style="font-family:Times New Roman;font-size:10.0pt;margin:0pt 0pt 12.0pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">This offer of employment
is contingent upon successfully passing </font>a pre-employment drug screen, background and reference check.</p>

<p style="margin:0pt 0pt 12.0pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">QUIDEL Corporation is an
at-will employer.&#160; This means that you
have the right to terminate your employment with QUIDEL at any time, for any
reason, with or without notice.&#160;
Similarly, QUIDEL has the right to terminate the employment relationship
at any time, for any reason, with or without notice.&#160; Any contrary representations, which may have
been made to you, are superseded by this offer.&#160;
Any modifications to this &#147;at-will&#148; term of your employment must be in
writing and signed by you and QUIDEL&#146;s President.</font></p>

<p style="margin:0pt 0pt 12.0pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">If you should voluntarily
leave the company within two years of beginning work, or two years of receiving
relocation assistance, whichever is later, you will be required to repay a
prorated portion of all relocation expenses covered by QUIDEL. You must make
this repayment within 30 days of providing notice of your resignation.</font></p>

<p style="margin:0pt 0pt 12.0pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">This offer expires seven
business days from the date of this letter.&#160;
Please indicate your acceptance of our offer by signing on the following
page and returning a copy of this letter to Human Resources as soon as possible.</font></p>

<br><hr size="3" width="100%" noshade color="#010101" align="center">

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<p style="margin:0pt 0pt .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Richard C. Tarbox III</font></p>

<p style="margin:0pt 0pt .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Offer Letter</font></p>

<p style="margin:0pt 0pt 12.0pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Page 3</font></p>

<p style="margin:0pt 0pt 12.0pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Ric, on behalf of Caren
Mason, the Board of Directors, and the entire QUIDEL team, we are looking
forward to having you join us as we work together to provide quality products
to the medical community and to create value for the employees and shareholders
of QUIDEL Corporation.</font></p>

<table border="0" cellspacing="0" cellpadding="0" width="100%" style="border-collapse:collapse;font-family:Times New Roman;width:100.0%;">
 <tr style="page-break-inside:avoid;">
  <td width="100%" valign="top" style="padding:0pt .7pt 0pt 0pt;width:100.0%;">
  <p style="font-size:10.0pt;margin:0pt 0pt .0001pt;"><!-- SET mrlNoTableShading -->Sincerely,</p>
  </td>
 </tr>
 <tr style="page-break-inside:avoid;">
  <td width="100%" valign="top" style="padding:0pt .7pt 0pt 0pt;width:100.0%;">
  <p style="margin:0pt 0pt .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  </td>
 </tr>
 <tr style="page-break-inside:avoid;">
  <td width="100%" valign="top" style="padding:0pt .7pt 0pt 0pt;width:100.0%;">
  <p style="margin:0pt 0pt .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  </td>
 </tr>
 <tr style="page-break-inside:avoid;">
  <td width="100%" valign="top" style="padding:0pt .7pt 0pt 0pt;width:100.0%;">
  <p style="margin:0pt 0pt .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Phyllis Huckabee</font></p>
  </td>
 </tr>
 <tr style="page-break-inside:avoid;">
  <td width="100%" valign="top" style="padding:0pt .7pt 0pt 0pt;width:100.0%;">
  <p style="margin:0pt 0pt .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Vice President, Human Resources</font></p>
  </td>
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<p style="line-height:1.0pt;margin:0pt 0pt 12.0pt;"><font size="1" face="Times New Roman">&nbsp;</font></p>

<table border="0" cellspacing="0" cellpadding="0" width="100%" style="border-collapse:collapse;font-family:Times New Roman;width:100.0%;">
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  <td width="3%" valign="top" style="padding:0pt .7pt 0pt 0pt;width:3.96%;">
  <p style="font-size:10.0pt;margin:0pt 0pt .0001pt;"><!-- SET mrlNoTableShading -->cc:</p>
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  <td width="3%" valign="top" style="padding:0pt .7pt 0pt 0pt;width:3.96%;">
  <p style="margin:0pt 0pt .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>
  </td>
  <td width="92%" valign="top" style="padding:0pt .7pt 0pt 0pt;width:92.08%;">
  <p style="margin:0pt 0pt .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Caren Mason</font></p>
  </td>
 </tr>
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  <td width="3%" valign="top" style="padding:0pt .7pt 0pt 0pt;width:3.96%;">
  <p style="margin:0pt 0pt .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>
  </td>
  <td width="3%" valign="top" style="padding:0pt .7pt 0pt 0pt;width:3.96%;">
  <p style="margin:0pt 0pt .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>
  </td>
  <td width="92%" valign="top" style="padding:0pt .7pt 0pt 0pt;width:92.08%;">
  <p style="margin:0pt 0pt .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Human Resources</font></p>
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<p style="line-height:1.0pt;margin:0pt 0pt 12.0pt;"><font size="1" face="Times New Roman">&nbsp;</font></p>

<p style="margin:0pt 0pt 12.0pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Enclosures</font></p>

<p style="margin:0pt 0pt 12.0pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">I have read, understand
and accept these terms and conditions of employment.&#160; I further understand that while my salary,
benefits, job title and job duties may change from time to time without a
written modification of this agreement, the at-will term of my employment is a
term of employment which cannot be altered or modified except in writing,
signed by me and QUIDEL&#146;s President.</font></p>

<table border="0" cellspacing="0" cellpadding="0" width="100%" style="border-collapse:collapse;font-family:Times New Roman;width:100.0%;">
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  <td width="27%" valign="top" style="border:none;border-bottom:solid windowtext 1.0pt;padding:0pt .7pt 0pt 0pt;width:27.78%;">
  <p style="font-size:10.0pt;margin:0pt 0pt .0001pt;"><!-- SET mrlNoTableShading -->/s/ Richard C. Tarbox III</p>
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  <td width="41%" valign="top" style="padding:0pt .7pt 0pt 0pt;width:41.66%;">
  <p style="margin:0pt 0pt .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>
  </td>
  <td width="30%" valign="top" style="border:none;border-bottom:solid windowtext 1.0pt;padding:0pt .7pt 0pt 0pt;width:30.56%;">
  <p style="margin:0pt 0pt .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">June 25, 2007</font></p>
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  <p style="font-size:10.0pt;margin:0pt 0pt .0001pt;"><!-- SET mrlNoTableShading -->Signature</p>
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  <td width="41%" valign="top" style="padding:0pt .7pt 0pt 0pt;width:41.66%;">
  <p style="margin:0pt 0pt .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>
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  <td width="30%" valign="top" style="border:none;padding:0pt .7pt 0pt 0pt;width:30.56%;">
  <p style="margin:0pt 0pt .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Date</font></p>
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 </tr>
</table>

<p style="line-height:1.0pt;margin:0pt 0pt 12.0pt;"><font size="1" face="Times New Roman">&nbsp;</font></p>

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