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

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

Nearly 9,000 flu cases reported in New Jersey as of the week ending Jan. 3. Here’s what to know about the H3N2 epidemic.

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.

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

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 ...

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

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

The U.S. is facing its worst flu season in 25 years, according to the Centers for Disease Control and Prevention, which ...

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

After weeks of delay, Florida's flu numbers are out—and up. Escambia County is among those experiencing a surge.