A particularly infectious subvariant of influenza is keeping emergency room numbers high and causing especially severe ...

Flu cases are ticking down, but experts warn the U.S. isn’t out of the woods yet.

Flu cases and hospitalizations are surging, already breaking last season's records. Here's where activity is highest, what ...

A strain of bird flu never seen in humans has infected a Washington state resident and left the person hospitalized, state health authorities said. Washington State Department of Health authorities ...

"It's difficult to predict how severe this flu season will be, but we can see year by year the pattern is that it increases with holidays," said Dr. Daived Abboud of Patient First. This trend will ...