This strain of avian influenza emerged in 2022 and brought major losses in the Northern San Joaquin Valley and beyond.

Despite a bad flu season, the share of residents choosing to get vaccinated against the virus has fallen. Here are 4 possible ...

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

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

The U.S. is facing its worst flu season in 25 years, according to the Centers for Disease Control and Prevention, which ...

So far, 12 people have died from the flu this season, according to the latest data from the New Hampshire Department of ...

Flu is surging across most of the U.S.

Hospitals are reporting more admissions — and more people heading to the ER. Here's what to know and what symptoms to watch ...

Since late June, San Diego County has recorded more than 5,200 flu cases.

This year's flu season is turning out to be brutal. As a new variant known as subclade K spreads rapidly, a study out today ...

The new flu strain, a variant of influenza A (H3N2), nicknamed the "super flu," is a strain "most people in Ohio have not encountered before." ...

Were you or a loved one sick over the holidays? Here's what to know about new influenza variant and how to stay healthy during flu season ...