The US is seeing its highest level of flu in more than 25 years, by measure of how many people are heading to the doctor for ...

Plenty of people – about 1 in 3, according to some studies — feel bad for a day or two after they get a flu shot. The most common symptoms include headaches, muscle aches, fatigue and fever, all of ...

According to the Centers for Disease Control and Prevention, seasonal influenza and respiratory illness activity is shaping ...

The last available tracing data from the CDC found that 91% of the 600 U.S. flu cases that were tested between Dec. 22 and 28 ...

This year's flu season is turning out to be brutal. As a new variant known as subclade K spreads rapidly, a study out today ...

Natalie Rowe, a 42-year-old web designer living in the United Kingdom, noticed she felt a little bit like she was losing her ...

Subclade K, which is circulating in Arizona, has been dubbed a 'super flu' but some experts say that's not an accurate ...

Several U.S. states, including Mississippi, reported "high" or "very high" levels of flu-like illness, according to federal ...

Approximately 80% of active flu cases are an unexpected strain of Influenza A virus that health officials are calling a super ...

"We've seen a very dramatic rise in some cases, much higher than what we would have expected from years past," said Dr. Katie ...

Peak flu season may be worse than usual this year, driven in part by a potent new strain of influenza. As of Monday, Michigan ...

ATLANTA - Georgia remains in the "extremely high" flu activity category, according to new data from the Centers for Disease ...