A more severe and highly contagious new strain of the flu is circulating this season. It's called subclade K, or more ...

That all followed a huge spike in flu activity in New York City, Long Island, and North Jersey in the first week of December.

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

Following a national trend, 52 counties in Florida saw increasing cases of influenza A driven by a new mutation called subclade K.

James Hay receives funding from the Wellcome Trust (grant 225001/Z/22/Z). The NHS is facing severe pressure this winter as flu cases surge earlier than usual, with some calling it “super flu”. Here’s ...

The latest data on respiratory illness in the United States shows that shoppers and merry-makers are spreading more than just holiday cheer: They’re also passing around germs. In many cases, it’s a ...

We all know that influenza is a common and serious viral infection, but it’s good to be reminded ahead of the upcoming flu season, which typically starts in October. There were an estimated 47 million ...