Flu activity continues to hit new peaks, spreading across the country, according to data from the Centers for Disease Control ...

Millions of people fall ill with the flu every year, and adults age 65 and older are at higher risk of developing serious ...

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

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