Gen-Probe Announces Webcast of First Quarter 2009 Earnings Conference Call

SAN DIEGO--(Business Wire)--
Gen-Probe Incorporated (NASDAQ: GPRO) announced today that the Company will
release its first quarter 2009 financial results on Thursday, April 30, 2009 at
approximately 4:00 p.m. Eastern Time (ET). The announcement will be followed by
a conference call with management at 4:30 p.m. ET.

The conference call will be webcast live and may be accessed on the investors
section of the Company's web site at www.gen-probe.com. An archived version of
the webcast will be available on the same web site for at least 90 days. A
telephone replay will also be available for 24 hours after the call ends. To
access the replay, please call 866-454-1437 (US) or 203-369-1239
(international).

About Gen-Probe

Gen-Probe Incorporated is a global leader in the development, manufacture and
marketing of rapid, accurate and cost-effective nucleic acid tests (NATs) that
are used primarily to diagnose human diseases and screen donated human blood.
Gen-Probe has more than 25 years of NAT expertise, and received the 2004
National Medal of Technology, America's highest honor for technological
innovation, for developing NAT assays for blood screening. Gen-Probe is
headquartered in San Diego and employs approximately 1,000 people. For more
information, go to www.gen-probe.com.

Caution Regarding Forward-Looking Statements

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. Forward-looking statements are not
guarantees of performance. They involve known and unknown risks, uncertainties
and assumptions that may cause actual results, levels of activity, performance
or achievements to differ materially from those expressed or implied by any
forward-looking statement. For information about risks and uncertainties we face
and a discussion of our financial statements and footnotes, see documents we
have filed with the SEC, including the Form 10-K for the year ended December 31,
2008, and all subsequent periodic filings made with the SEC. We assume no
obligation and expressly disclaim any duty to update any forward-looking
statement to reflect events or circumstances after the date of this press
release or to reflect the occurrence of unanticipated events.

Gen-Probe Incorporated
Paula Izidoro
Investor Relations
858-410-8904
paulai@gen-probe.com

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