The CDC estimates there have been at least 19 million cases so far this season.

Flu-related pediatric deaths have doubled since last week, according to the CDC. Here's what to know this week, including ...

Respiratory virus season is in full swing across California, with several illnesses spreading across the state. Cases of ...

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

Flu activity continues to remain elevated across the U.S. with at least 18 million cases, according to newly released data ...

Health experts say the U.S. flu season appears to be waning with two straight weeks of decline in measures of flu activity.

The sooner someone takes a flu test after they start to experience symptoms of the illness, the better, Dr. Sheldon Campbell ...

There is a high number of flu cases in South Carolina, even after numbers have decreased since last week. A winter storm ...

The current flu season has hit Central Florida hard, with increased numbers of confirmed cases and fewer residents vaccinated ...

Medical experts debunk flu shot myths: vaccines use inactive virus that cannot cause illness. Discover what side effects actually mean for your immunity.

Health officials warn despite an expected dip in cases, February could bring severe surge as state records four pediatric flu ...