Gilead Sciences to Present at Citigroup's 2007 Global Healthcare Conference on Wednesday, May 23

Gilead Sciences, Inc. (Nasdaq:GILD) announced today that its
corporate presentation will be webcast from Citigroup's 2007 Global
Healthcare Conference, taking place May 22-24, 2007, in New York, New
York. This webcast may be accessed via the company's corporate website
at www.gilead.com.

John C. Martin, PhD, Gilead's President and Chief Executive
Officer, will provide an overview of the company on Wednesday, May 23
at 9:30 a.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 start of the presentation to ensure adequate time
for any software download that may be necessary to listen to the
webcast.

About Gilead

Gilead Sciences is a biopharmaceutical company that discovers,
develops and commercializes innovative therapeutics in areas of unmet
medical need. The company's mission is to advance the care of patients
suffering from life-threatening diseases worldwide. Headquartered in
Foster City, California, 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).