The sudden appearance of this symptom could be your body's alarm bell going off, a top infectious disease MD explains.

The flu can come on hard and fast, temporarily disrupting pretty much every part of your daily life. While you know it won’t ...

CDC data show flu hospitalizations at their highest level for this point in the season since 2010-11.

Add Yahoo as a preferred source to see more of our stories on Google. Americans are in the throes of flu season in large swaths of the country. And it may get worse soon. The United States' highest ...

Experts say this year’s flu shot still offers substantial protection against hospitalization.

When H1N1 started ramping up in late August, the updated flu shots had just started rolling out. “The pattern we oftentimes ...

Experts explain how to tell the difference, and the best ways to recover ...

Man flu may have a scientific basis, says NHS GP Dr Jeff Foster, as research suggests men can suffer more severe respiratory virus symptoms than women.

Flu cases are climbing across Oklahoma. Here is what you need to know about symptoms and staying protected.

Flu season is picking up months ahead of schedule with a mutated virus spreading in some parts of the United States.