Flu A affects both humans and animals, while flu B affects only humans. You may notice that flu A tends to appear earlier in ...

We're in the midst of flu season, and the U.S. is facing a wave that's straining hospitals and closing schools. But not all ...

Influenza, commonly known as the flu, is a contagious respiratory illness caused by the influenza virus. According to the Centers for Disease Control and Prevention (CDC), there are four types of flu ...