Gilead Sciences to Release Fourth Quarter and Year-End 2001 Financial Results On Thursday, January 31, 2002; Conference Call and Webcast to Follow

To access the live call or the seven-day archive via the internet, log on to http://www.gilead.com. Please connect to the company's website at least 15 minutes prior to the conference call to ensure adequate time for any software download that may be needed to hear the webcast. Alternatively, please call 800/215-1640 (U.S.) or 212/346-7424 (international). Telephone replay is available approximately one hour after the call through 7:00 p.m. EST, February 3, 2002. To access, please call 800/633-8284 (U.S.) or 858/812-6440 (international). The conference ID number is 20280957.

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 five marketed products and focuses its research and clinical programs on anti-infectives, including antivirals, antifungals and antibacterials. Headquartered in Foster City, CA, Gilead has operations in the United States, Europe and Australia.

For more information on Gilead Sciences, please visit our Web site at www.gilead.com or call the Gilead Corporate Communications Department at 1-800-GILEAD-5 (800/445-3235).

CONTACT:          Gilead Sciences, Foster City
                  Susan Hubbard, 650/522-5715

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