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

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

A new form of the flu, which is highly contagious and aggressive, is sweeping the nation this season. A mutation of influenza A H3N2, called subclade K, has been detected as the culprit in rising ...

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

At least 14 states and Washington, DC, are reporting high or very high flu activity. The dominant flu strain, a version of influenza A (H3N2) called subclade K, has multiple mutations that make it ...

Michigan is seeing a surge in people who are sick with the flu, according to the U.S. Centers for Disease Control and Prevention report. Corewell Health says the number of patients its hospitals have ...

This year’s flu season is shaping up to be a nasty one—driven by a new variant of the influenza virus that may be able to slip past our vaccine defenses. A mutated form of the influenza A strain H3N2 ...

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.

Influenza cases are rising sharply, heightening fears that a new strain will fuel a punishing flu season that is already outpacing last year’s. The flu has sickened an estimated 7.5 million people so ...

(NEXSTAR) – The flu virus is already hitting hard this season as a new variant spreads rapidly, but it’s not too late to protect yourself, experts say. Much of the concern this flu season is coming ...