R. David Yost Elected to Aetna Board

HARTFORD, Conn., October 25, 2002 — Aetna (NYSE: ΑET) today announced that R. David Yost, 55, president and chief executive officer of AmerisourceBergen Corporation, has been elected to the company's board of directors, effective immediately.

"Aetna is extremely fortunate to have Dave Yost as a member of our board," Aetna Chairman and CEO John W. Rowe, M.D., said. "Dave is one of the nation's most respected leaders in health care-related services, with a particularly distinguished career in the pharmaceutical services field. Dave's leadership and experience will be exceptionally valuable to Aetna as we drive our pharmaceutical initiatives in a new strategic direction, expanding Aetna's capabilities, offerings and services for our customers and members."

Yost has been president and chief executive officer of AmerisourceBergen Corporation, the world's leading pharmaceutical distributor, since AmeriSource Health Corporation merged with Bergen Brunswig Corporation to form AmerisourceBergen in 2001. Previously he was chairman and CEO of AmeriSource Health Corporation.

Yost has spent the last 28 years in the pharmaceutical distribution industry in various sales, operation and management positions. Previously, he served as a Captain in the U.S. Air Force.

A graduate of the United States Air Force Academy, Yost also received a master's degree in business administration from the University of California at Los Angeles (UCLA).

Yost also serves on the board of directors of AmerisourceBergen Corporation.

Aetna is one of the nation's leading providers of health, dental, group life, disability and long-term care benefits, serving 14.4 million health care members, 11.9 million dental members and 12 million group insurance customers as of June 30, 2002. The company has expansive nationwide networks of more than 527,000 health care services providers, including over 321,000 primary care and specialist physicians and 3,300 hospitals. For more information about Aetna, please visit the company's website at www.aetna.com.

Copyright Aetna Inc.