New federal data released Friday shows the percentage of medical visits for flu symptoms in Louisiana climbed to 3.9% in the ...

Health experts warn this flu season could be unusually severe, with early spread and concerning H3N2 strain activity across ...

A new flu variant, called subclade K, is spreading overseas and may set the stage for another tough winter in the United ...

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

An early analysis suggests current vaccines may still be somewhat effective against the new version of the flu ...

A new strain of the flu called subclade K could make for a particularly nasty flu season across the country, according to public health experts. The strain already caused Japan to declare an influenza ...

While flu activity is still low nationwide, it is increasing, and it typically spikes after the holidays. Michigan Couple ...

Flu season is here with a mutated H3N2 strain causing concern. Health experts urge vaccination as holiday gatherings approach ...

Subclade k has been circulating in Asia and in Europe, and it might already be in the United States, experts said.

Lots more details about the fallout from STAT’s John Wilkerson. Read more here.

"We're right in the height of flu season right now," Doctor Heather Osher with Patient First, says she is keeping a close eye ...