Partial CDC data suggest that influenza deaths may have already reached as high as 2% of deaths for the week ending on Feb. 1 ...

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.

Influenza levels in the US are the highest they've been in 15 years amid winter weather and a second wave of the virus.

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

More than 24 million people have had seasonal flu this season, according to estimates from the Centers for Disease Control ...

Michigan's largest health system urges patients to seek nonemergency care at sites other than its ERs amid a surge in flu, ...