A dairy worker in Nevada is believed to be the first person in the U.S. to contract a new strain of bird flu from cattle.

The U.S. winter virus season is in full force, and by one measure is the most intense in 15 years.

Low vaccination rates may be contributing to the spread of flu, but data suggests the number of cases so far this season is ...

Unlike in some other states, there have not been any confirmed cases of avian influenza in domesticated birds or humans in ...

Ohio is among 19 U.S. states reporting high respiratory virus activity, the U.S. Centers for Disease Control and Prevention reported recently. Across the country, flu-related outpatient visits have ...

Maryland is experiencing an explosion in flu cases in recent weeks. Statewide data shows flu activity in Maryland is very high.