Influenza A, B, C Or D? Flu spreads easily in winter due to crowded indoor spaces, low humidity, and reduced immunity.

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 ...

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

Is it flu A or flu B, and how long is it contagious? Here's what to know about the flu virus running rampant in New Jersey, symptoms, more.

Illinois is seeing a "notable increase" in hospital admissions for flu cases, according to state health officials, as levels of respiratory viruses continue to tick up. But which type of flu is ...

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 ...