Doctor's visits for flu symptoms are at a 15-year high. Why is this flu season so bad? Doctors discuss flu severity, symptoms and how to stay safe.

During the week of Jan. 26 through Feb. 1, 2025, flu activity remained elevated in the United States, with 43 states ...

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

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