Subclade K, which is circulating in Arizona, has been dubbed a 'super flu' but some experts say that's not an accurate characterization.

After reporting was delayed due to the holidays, new CDC data shows the flu is spreading, with 33,000 people hospitalized ...

The United States is in the grip of an aggressive winter flu season, with the U.S. Centers for Disease Control and Prevention (CDC) having recently reported a surge in visits to doctors on a scale not ...

Virginia Tech professor Linsey Marr and her colleagues have studied a health center, a daycare facility, and on-board airplanes to determine that the size of an airborne flu virus impacts spreading.