The US is in the throes an unusually intense and severe flu season, with hospitalization rates topping the levels seen with ...

The surge has come at a time when numbers are usually dropping off. It's the worst in 15 years, says one New Jersey doctor.

With threats of avian flu and lead poisoning, biologists are working overtime to care for a species that nearly went extinct.

The United States is facing what seems to be one of the worst flu seasons in over a decade. Doctor visits for influenza ...

Sonya Stokes, an emergency room physician in the San Francisco Bay Area, braces herself for a daily deluge of patients sick ...

Yahoo News provides the latest updates on the spread of bird flu in the U.S. and its effect on rising egg prices and ...