Aetna Announces Appearance At Bear Stearns 20th Annual Healthcare Conference

Aetna (NYSE: ΑET) announced today that Joseph M. Zubretsky, executive vice president & chief financial officer of Aetna, is scheduled to make a presentation at the Bear Stearns 20th Annual Global Healthcare Conference on September 11, 2007, in New York, NY.

Aetna’s presentation is scheduled to begin at 11:00 a.m. Eastern time. Investors, analysts and the general public are invited to listen to this presentation over the Internet via Aetna’s Investor Information link at www.aetna.com/investor. To listen to this presentation live on the Internet, visit Aetna’s web site prior to the presentation to download and install any necessary audio software. A webcast replay will be available via Aetna’s Investor Information link at www.aetna.com/investor, beginning approximately two hours after the event, for 14 days.

Anyone listening to the presentation is encouraged to read Aetna’s annual and quarterly reports filed with the Securities and Exchange Commission for a discussion of Aetna’s historical results of operations and financial condition. Information reconciling certain financial and other measures that may be disclosed in the presentation to relevant GAAP measures is available in the Aetna first and fourth quarter 2006 Financial Supplements, Aetna second quarter 2007 Financial Supplement, Aetna second quarter 2007 press release and Aetna 2007 Guidance Summary dated July 26, 2007 via the Aetna Investor Information link.