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

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

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

Subclade K (previously known as J.2.4.1) is gaining attention because it appears to be spreading much earlier in the flu ...

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

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

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

Flu season in the U.S. is particularly bad this year, and a new branch of the flu family tree may be to blame.

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 ...

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