The U.S. is in the thick of flu season, with many states reporting "moderate to very high activity" of influenza-like illness, according to the CDC. With influenza A (H3N2), or subclade K, making up a ...

Last winter, flu activity broke records in the U.S. And while this flu season is just starting — and it's already shaping up to be another rough one. Flu is picking up steam earlier this year than ...

It depends on your health status and age. Flu season infects millions each year People are most contagious during first 3-4 days, but this can vary. Air purifiers can help reduce transmission in ...

Doctors and scientists say this year's influenza season could be tougher than usual. A new version of the flu virus, called H3N2, is spreading quickly. At the same time, fewer people are getting flu ...

A new flu variant fueling a fast-paced rise in cases across the state has brought with it some symptoms unlike those many have come to associate with the virus. As cases reach "very high" levels, a ...