Subclade K, which is circulating in Arizona, has been dubbed a 'super flu' but some experts say that's not an accurate ...

Subclade K has become the dominant form of flu and is slightly different from the virus targeted by this year’s flu vaccine.

A variant of influenza A, H3N2, is spreading across the U.S., with low vaccination rates contributing to infection rates.

The H3N2 is a new strain of influenza A. The symptoms are described as more intense and contagious than typical seasonal flu.

Have you been sick since the new year started? You're not alone; here's what to know about new H3N2 flu strain and its ...

H3N2 super flu symptoms, risks and what to expect explained by two doctors. Discover how long the flu is contagious for and ...

Australia’s 2025 flu season lasted weeks longer than it normally does. Hong Kong’s hit so early that the rollout of seasonal ...

Flu cases continue to climb nationwide, with the majority stemming from the new subclade K strain dubbed the "super flu." ...

The “super flu” is a variant of influenza A H3N2 called subclade K. Historically, similar variants have caused more severe ...

While vaccines may not fully protect everyone, public health experts say they’re still proven to help prevent serious illness ...

The CDC says Texas flu is at "very high" levels, as the flu vaccine has been less effective against H3N2 subclade K.

This year's flu season is shaping up to be particularly brutal. Here's what to know this week, including cases taking a ...