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

The Influenza A H3N2 virus subclade K represents a change in the basic structure of the influenza virus.

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.

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.

(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 ...

But hundreds of thousands of people globally each year won’t survive their bouts with the flu, and millions more will suffer ...

Subclade K (previously known as J.2.4.1) is gaining attention because it appears to be spreading much earlier in the flu ...

Groundbreaking flu transmission study reveals zero infections despite close contact between healthy volunteers and ...

Medical experts debunk flu shot myths: vaccines use inactive virus that cannot cause illness. Discover what side effects actually mean for your immunity.

U.S. flu cases are surging partially because of a new strain named "subclade K," that is not well covered by this year’s flu vaccine. Doctors still recommend getting the flu vaccine as it can reduce ...