Hajj pilgrims ready for flu

E.Coli Outbreak

Concerns arise that tons of E.coli-infested ground beef may be in Americans' freezers. Louise Schiavone reports.

Can a doctor refuse care?

Under health care reform plans, could a doctor refuse to provide care? CNN's Dr. Sanjay Gupta answers.

Cancer cell killer

CNN.com's Liz Landau explains "nanobees," tiny particles designed to destroy cancer cells.

U.K. Officials Deflect Criticism of Health Care

In the United Kingdom, a debate has erupted over how the government-operated health care system is being portrayed recently in the United States.