CORRECTING and REPLACING Gilead Sciences to Present at the Banc of America Securities 2004 Healthcare Conference on Friday, May 21st

FOSTER CITY, Calif.--(BUSINESS WIRE)--May 19, 2004--In BW6055 issued May 18, 2004: Second graph, first sentence of release dated May 18, 2004 should read: Friday, May 21st (sted Friday, March 21st).

The corrected release reads:

GILEAD SCIENCES TO PRESENT AT THE BANC OF AMERICA SECURITIES 2004 HEALTHCARE CONFERENCE ON FRIDAY, MAY 21ST; WEBCAST AVAILABLE THROUGH GILEAD CORPORATE WEBSITE

Gilead Sciences, Inc. (Nasdaq:GILD) announced today that its corporate presentation will be webcast from the Banc of America Securities 2004 Healthcare Conference in Las Vegas, Nevada. This webcast may be accessed via the company's corporate website at www.gilead.com.

Mark Perry, Gilead's Senior Business Advisor, will provide an overview of the company and an update on key business milestones on Friday, May 21st at 1:20 p.m. Pacific Time.

To access the live webcast via the Internet log on to www.gilead.com. Please connect to the company's website at least 15 minutes prior to the live presentation to ensure adequate time for any software download that may be necessary to view the webcast.

Gilead Sciences is a biopharmaceutical company that discovers, develops and commercializes therapeutics to advance the care of patients suffering from life-threatening diseases worldwide. The company has six marketed products and focuses its research and clinical programs on anti-infectives. Headquartered in Foster City, CA, Gilead has operations in the United States, Europe and Australia.

For more information on Gilead Sciences, please visit www.gilead.com or call the Gilead Public Affairs Department at 1-800-GILEAD-5 (1-800-445-3235).

CONTACT: Gilead Sciences, Inc. Susan Hubbard, 650-522-5715 SOURCE: Gilead Sciences, Inc.