(NEXSTAR) – The flu is spreading far and wide across the U.S. – and influenza A is largely to blame. Of all the flu tests reported to the Centers for Disease Control and Prevention since the start of ...

The mutated strain, known as subclade K, is causing a surge in cases in the United Kingdom, Canada, and Japan. Here's what to know.

Severe flu outbreaks across globe raise concerns for the US as experts warn of early, intense H3N2 activity and vaccine challenges this season.

We're almost in the peak of flu season, with the CDC's recent report saying activity is "low but rising." Here's what ...

We've all heard of "the flu" but when it comes to types, subtypes and variants, influenza can get a bit complicated. According to the U.S. Centers for Disease Control and Prevention (CDC), nearly ...

A new influenza A strain subclade K is circulating due to H3N2 picking up 7 mutations this Summer. Will this lead to a worse ...

For a half-century, scientists have been trying to develop a vaccine that would protect against the most dangerous flu viruses. Now, researchers at the University of Pennsylvania have a new approach, ...

Flu season typically runs from October to May, with the CDC recommending vaccination by the end of October. The 2025-2026 flu shot protects against three common influenza viruses and takes about two ...

This is an archived article and the information in the article may be outdated. Please look at the time stamp on the story to see when it was last updated. (NEXSTAR) – The flu is spreading far and ...