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

One type mutates often and causes seasonal pandemics. The other one doesn't. Here's what else is different.

We've all heard of "the flu" but when it comes to types, subtypes and variants, influenza can get a bit complicated. According to the U.S. Centers for Disease Control and Prevention (CDC), nearly ...

(NEXSTAR) – As we get deeper into flu season, a new type of the influenza virus has been identified, the Centers for Disease Control and Prevention confirms. The new strain is a variation of influenza ...

VIVIAN, LA - DECEMBER 12: With a temperature of 103.8, Asa Moore, 6, of Vivian, Louisiana is examined by John Messier, a physician's assistant, at the North Caddo Surgical and Medical Center for ...

(NEXSTAR) – The flu is spreading far and wide across the U.S. – and influenza A is largely to blame. Of all the flu tests reported to the Centers for Disease Control and Prevention since the start of ...

Add Yahoo as a preferred source to see more of our stories on Google. This flu season has been harsh. As of Dec. 27, there have been 11 million reported cases, 120,000 hospitalizations, and 5,000 ...

This is an archived article and the information in the article may be outdated. Please look at the time stamp on the story to see when it was last updated. (NEXSTAR) – The flu is spreading far and ...