Flu season in the U.S. is particularly bad this year, and a new branch of the flu family tree may be to blame.

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

Flu cases are ticking down, but experts warn the U.S. isn’t out of the woods yet.

Flu season isn’t over yet in North Texas, despite what looked like a momentary drop in some flu-related metrics after the new year, health officials say This year’s wave of flu infections seems to be ...

A flu variant called subclade K emerged too late to be fully covered by this year's vaccine. But the flu shot can still help protect you.

After a sharp uptick in flu cases in mid-December 2025, flu activity across the U.S. and Canada remains high. Although cases are trending downward in Canada as of Jan. 9, 2026, the season has yet to ...

We’re finally making progress toward a universal flu vaccine.

If it feels like everyone you know has gotten the flu, you're not alone. It's bad and getting worse. Here are the numbers.

California officials warn of an increase in flu-related hospitalizations and confirm a second severe-flu-related death.

A spike in influenza cases and difficult travel weather has led the American Red Cross of Greater Pennsylvania to declare a ...

Northeast Wisconsin, like the rest of the state and most of the country, is experiencing 'very high flu activity.' ...

There are still things you can do to save yourself — and others.