Quest Diagnostics Extends Tender Offer for all Outstanding Shares of Celera Corporation to May 2

Quest Diagnostics Incorporated (NYSE: DGX), the world's leading provider of diagnostics testing, information and services, announced today that, in connection with the entry by it and Celera Corporation (NASDAQ: CRA) into a memorandum of understanding providing for the settlement of previously consolidated purported class action lawsuits filed in Delaware and California state courts relating to its agreement to acquire Celera, it has extended its tender offer to acquire all outstanding shares of Celera common stock for $8.00 per share in cash.