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

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

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

Add Yahoo as a preferred source to see more of our stories on Google. The new flu variant, H3N2 subclade K, is a mutation of the common flu A subtype, which is often the flu "going around" come late ...

Amid a severe flu season, the CDC ends its universal flu shot recommendation for kids. Experts explain why this is dangerous ...

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 ...

(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 ...

One of the many reasons why cases of flu increase during the cold months, especially during the period from December to ...

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.

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.