0001047469-04-025848 Sample Contracts

AGREEMENT RE: CHANGE IN CONTROL
Change in Control Agreement • August 9th, 2004 • Quidel Corp /De/ • In vitro & in vivo diagnostic substances • California

This AGREEMENT RE: CHANGE IN CONTROL (this "Agreement") is dated as of July 19, 2004 and is entered into by and between Michael J. Beck ("Executive") and Quidel Corporation, a Delaware corporation (the "Company").

AMENDMENT #1 TO AGREEMENT RE: CHANGE IN CONTROL
Agreement Re: Change in Control • August 9th, 2004 • Quidel Corp /De/ • In vitro & in vivo diagnostic substances

THIS AMENDMENT #1 TO AGREEMENT RE: CHANGE IN CONTROL (this "Amendment") is dated as of July 19, 2004 and is entered into by and between S. Wayne Kay ("Executive") and Quidel Corporation, a Delaware corporation (the "Company").

AMENDMENT #1 TO AGREEMENT RE: CHANGE IN CONTROL
Agreement Re: Change in Control • August 9th, 2004 • Quidel Corp /De/ • In vitro & in vivo diagnostic substances

THIS AMENDMENT #1 TO AGREEMENT RE: CHANGE IN CONTROL (this "Amendment") is dated as of July 19, 2004 and is entered into by and between Paul E. Landers ("Executive") and Quidel Corporation, a Delaware corporation (the "Company").

AMENDMENT #1 TO AGREEMENT RE: CHANGE IN CONTROL
Agreement Re: Change in Control • August 9th, 2004 • Quidel Corp /De/ • In vitro & in vivo diagnostic substances

THIS AMENDMENT #1 TO AGREEMENT RE: CHANGE IN CONTROL (this "Amendment") is dated as of July 19, 2004 and is entered into by and between Mark E. Paiz ("Executive") and Quidel Corporation, a Delaware corporation (the "Company").