Feeling under the weather? You could have Influenza Type A. Here's the difference between Influenza Type A and Type B.

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

Flu season is starting to tick up in the U.S. And, looking at clues from other countries, we may be in for a rough winter. But not all influenza is the same. And there are some notable differences ...

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

After weeks of delay, Florida's flu numbers are out—and up. Escambia County is among those experiencing a surge.

All viral activity benchmarks have gone down, except for a slight increase in the death rate. Here's what to know about the state of the flu season.

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 ...