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

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 ...

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

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

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 ...

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

Flu season is starting to tick up in the U.S. And, looking at clues from other countries, we may be in for a rough winter. But not all influenza is the same. And there are some notable differences ...

NEW YORK(AP) — The U.S. flu season is starting slowly, and it's unclear if it will be as bad as last winter's, but some health experts are worried as U.S. Centers for Disease Control and Prevention ...

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

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