Gilead Sciences to Release Fourth Quarter and Year-End 2000 Earnings on Thursday, January 25, 2001

Conference Call and Web Cast to Follow

Foster City, CA -- January 19, 2001

Gilead Sciences, Inc. (Nasdaq: GILD) announced today that its fourth quarter and year-end 2000 financial results will be released on Thursday, January 25, 2001, at 4:00 p.m. Eastern Time. At 4:30 p.m. Gilead will webcast a conference call live on the company's internet site. The call will be led by Mark Perry, Executive Vice President, Operations and Sharon Surrey-Barbari, Chief Financial Officer.

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 800-633-8620 (U.S.) or 212-676-4902 (international). Telephone replay is available approximately one hour after the call through 7:00 p.m. EDT, January 28, 2001. To access, please call 800-633-8284 (U.S.) or 858-812-6440 (international). The conference ID number is 17337262.

Gilead Sciences, Inc., headquartered in Foster City, CA, is an independent biopharmaceutical company that seeks to provide accelerated solutions for patients and the people who care for them. Gilead discovers, develops, manufactures and commercializes proprietary therapeutics for challenging infectious diseases (viral, fungal and bacterial infections) and cancer. Gilead maintains research, development or manufacturing facilities in Foster City, CA; Boulder, CO; San Dimas, CA; Cambridge, UK and Dublin, Ireland and sales and marketing organizations in the United States, Europe and Australia.

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