New Mexico, Texas and Nebraska are among the states with the highest number of people showing flu-like symptoms.

The CDC classifies 32 states and Washington, D.C., as having “very high” flu activity levels and 11 states as having “high” ...

Levels of influenza nationwide are now at the highest they have been since the peak of the 2009 swine flu pandemic, according ...

Bird flu cases are still rising in the U.S. as the virus continues to devastate poultry farms. More than 145 million chickens, ducks, turkeys and other fowl have been slaughtered across the United ...

NEW YORK (AP) — The U.S. winter virus season is in full force, and by one measure is the most intense in 15 years.