GEN-PROBE TO ANNOUNCE Q4 AND YEAR END 2002 FINANCIAL RESULTS.

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SAN DIEGO, Calif., Feb. 3 /PRNewswire-FirstCall-Asianet/ -- Gen-Probe Incorporated (Nasdaq: GPRO) today announced that it will release its fourth quarter 2002 financial results on Thursday, February 13, 2003 at approximately 4:00 p.m. Eastern Standard Time (EST). The announcement will be followed by a conference call at 4:30 p.m. EST hosted by Henry L. Nordhoff, Chairman, President and CEO and other members of Gen-Probe's senior management team.

The conference call will be webcast live and may be accessed on the homepage of the Company's website at http://www.gen-probe.com . Following the conference call, an archived version of the webcast will be available at the same website until March 13, 2003. A telephone replay will also be available until 11:59 p.m. EST on February 17, 2003. To access the replay, please call 1-800-295-0889 (U.S.) or 1-402-220-3774 (International).

About Gen-Probe Incorporated

Gen-Probe Incorporated, founded in 1983, is a global leader in the development, manufacture and marketing of rapid, accurate and cost-effective nucleic acid testing (NAT) products used for the clinical diagnosis of human diseases and for screening donated human blood. Using its patented NAT technology, Gen-Probe has received FDA approvals for more than 50 products that detect a wide variety of infectious microorganisms, including those causing sexually transmitted diseases, tuberculosis, strep throat, pneumonia and fungal infections. Additionally, the Company developed and manufactures the only FDA approved bloodscreening assay for the simultaneous detection of HIV-1/HCV, which is marketed by Chiron Corporation. Gen-Probe has over 19 years of nucleic acid detection research and product development experience, and its products are used daily in clinical laboratories and blood collection centers throughout the world. Gen-Probe is headquartered in San Diego, California and has approximately 700 employees.

Any statements in this press release about our expectations, beliefs, plans, objectives, assumptions or future events or performance are not historical facts and are forward-looking statements. These statements are often, but not always, made through the use of words or phrases such as "believe," "will," "expect," "anticipate," "estimate," "intend," "plan," and "would." For example, statements concerning financial condition, possible or assumed future results of operations, growth opportunities, industry ranking, plans and objectives of management, markets for our common stock and future management and organizational structure are all forward-looking statements. Forward-looking statements are not guarantees of performance. They involve known and unknown ...