This year's flu season is shaping up to be particularly brutal. Here's what to know this week, including cases taking a ...

The predicted surge of influenza cases, driven by the new “subclade K” mutation, is hitting Wisconsin emergency rooms.

While vaccines may not fully protect everyone, public health experts say they’re still proven to help prevent serious illness ...

A late-emerging influenza A mutation known as subclade K weakened protection, but doctors say vaccination still reduces ...

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

Have you been sick since the new year started? You're not alone; here's what to know about new H3N2 flu strain and its ...

The latest federal data shows Florida is now in the top tier of “very high” flu activity. Here's the four reasons why.

Americans are being urged to be extra vigilant this winter, as a suite of influenza A mutations has created a dominant virus ...

The newest strain, Subclade K, is a mutation of influenza A. While current data from the World Health Organization does not ...

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

Flu is rising rapidly in the U.S, with cases reaching "very high" levels in Missouri, according to the Centers for Disease ...

The predicted surge of influenza cases, driven by the new “subclade K” mutation, is hitting Minnesota emergency rooms.