X0202 4 2005-05-19 0 0000353569 QUIDEL CORP /DE/ QDEL 0001187716 POLAN MARY LAKE PH D 4251 MANUELA CT. PALO ALTO CA 94306 1 0 0 0 Common Stock 2005-05-19 4 A 0 12000 0.01 A 34930 D The Reporting Person also indirectly holds 2,000 shares of common stock held in trusts to benefit her children. The Reporting Person has no authority to vote or dispose of these 2,000 shares and disclaims beneficial ownership of these 2,000 shares, except to the extent of her pecuniary interest, if any. Paul E. Landers, Attorney-in-Fact for Mary Lake Polan 2005-05-20