Flu activity is rising sharply in the U.S. this season with at least 7.5 million estimated cases so far, largely due to a new ...

WASHINGTON (AP) — Flu is rising rapidly across the U.S., driven by a new variant of the virus — and cases are expected to ...

At least 14 states and Washington, DC, are seeing high and very high levels of flu, mainly caused by a surprise new influenza ...

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

This year’s influenza virus has been dubbed the “super flu” for how quickly it’s spreading — and how hard it’s hitting.

A new form of the flu, which is highly contagious and aggressive, is sweeping the nation this season. A mutation of influenza ...

(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 ...

The new variant of Influenza A, or H3N2, has been given the nickname 'super flu.' The fast-spreading virus has caused ...

Known as subclade K, a new, mutated flu strain that has dominated in Europe and Asia is now rapidly spreading across the US.

Flu cases are climbing across the United States as the season reaches its peak, and millions of people may get sick in the ...