Here's what you need to know about this season's H3N2 flu symptoms, treatment, when to go to the hospital and whether to get vaccinated.

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

Add Yahoo as a preferred source to see more of our stories on Google. Flu is surging across most of the U.S. But, amid an early, harsh season, there is a glimmer of promising news: The flu shot may be ...