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.

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

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

A ferocious surge of flu cases is linked in part to a variant that has not been dominant in the past few years — resulting in ...

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

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.

Flu is making people miserable from coast to coast, thanks in large part to a new strain called subclade K.

This flu season has been rough. Antivirals can help.

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

As North Carolina illness rates spike post-holidays, here's what to know about the spread of flu, stomach flu and COVID-19.