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

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

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 ...

A new flu strain has been detected, with the variant dubbed influenza A subclade K. How severe is the strain and does the vaccine protect against it?

(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 ...

It's the time of sneezing, coughing, hacking and wheezing. Cases of the flu are surging throughout much of the United States as the new year begins. In its latest Influenza Surveillance Report, ...

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 ...

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 ...