Flu cases and hospitalizations are surging, already breaking last season's records. Here's where activity is highest, what ...

Much of the country is facing record flu cases thanks to a new strain of the virus. And the "subclade K" variant is likely ...

A new flu strain has been detected, with the variant dubbed influenza A subclade K. How severe is the strain and does the ...

The CDC estimated there have been at least 7.5 million illnesses in the U.S., 81,000 hospitalizations and 3,100 deaths from ...

A variant of influenza A, H3N2, is spreading across the U.S., with low vaccination rates contributing to infection rates. Here's what we know.

Cases in Arizona aren't as high as other states, but health experts are reporting a steady stream of patients testing ...

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

This year, the most prevalent variant is subclade K, which is a subtype of influenza H3N2. Subclade K was first detected in Australia in July 2025. It’s driving 91.5% of infections in the U.S. so far ...

One week into 2026, the U.S. is ringing in the new year with a surge in Flu cases across the nation due to a new variant.

Doctors say a new variant of flu sparking infections across the UK has unique symptoms people should watch out for. The ...

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

Georgia flu activity reaches "very high" levels as a new H3N2 variant, subclade K, drives up hospitalizations and demand for ...