Michigan and 13 other states remain in the CDC's very high classification, but influenza-like illness activity is trending ...

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.

Flu activity continues to remain elevated across the U.S. with at least 18 million cases, according to newly released data ...

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

Influenza is on the rise in several states. Here are symptoms to look for if you start feeling under the weather.

Two new analyses, one from France and one from China, suggest that seasonal influenza vaccination provided moderate protection during the early months of the 2025–26 flu season, despite the rapid ...

The flu is hitting children especially hard this season.

In a striking real-world experiment, flu patients spent days indoors with healthy volunteers, but the virus never spread.