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

Cases of the seasonal flu in the U.S. have reached their highest numbers in more than a decade, according to the Centers for Disease Control and Prevention.

While we often refer to it as "the flu," the influenza virus has several strains, with flu A and flu B considered the most ...

One family in Bristol, Tennessee, lost four daughters — all between the ages of 18 months and 14 years — during the Spanish ...