The flu can also cause a general feeling of fatigue or malaise, Ray says, as well as gastrointestinal issues like diarrhea ...

It's flu season right now, and the U.S. is in the midst of a wave that's straining hospitals. But not all influenza is the same. There are some notable differences between flu A and flu B strains. On ...

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 ...

Plus, which is poised to dominate this flu season.

A mutated, potentially severe strain of influenza A called H3N2 "subtype K" is spreading worldwide. Experts discuss what to expect in the U.S., symptoms, and whether vaccine still work.

As we get deeper into flu season, a new type of the influenza virus has been identified, the Centers for Disease Control and ...

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 is the same. There are some notable differences between flu A and ...