Gilead Sciences to Present at the Credit Suisse First Boston Annual Healthcare Conference on Thursday, November 18th; Webcast Available Through Gilead Corporate Website

FOSTER CITY, Calif.--(BUSINESS WIRE)--Nov. 15, 2004--Gilead Sciences, Inc. (Nasdaq:GILD) announced today that its corporate presentation will be webcast from the Credit Suisse First Boston Annual Healthcare Conference in Phoenix, Arizona. This webcast may be accessed via the company's corporate website at www.gilead.com.

John F. Milligan, PhD, Gilead's Executive Vice President and Chief Financial Officer, will provide an overview of the company and an update on key business milestones on Thursday, November 18th at 11:00 a.m. Mountain Time (1:00 p.m. Eastern 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 listen to 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 seven marketed products, and focuses its research and clinical programs on anti-infectives. Headquartered in Foster City, CA, Gilead has operations in North America, 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 (Investor Relations) SOURCE: Gilead Sciences, Inc.