Influenza levels in the US are the highest they've been in 15 years amid winter weather and a second wave of the virus.

The winter flu season features two types of influenza. Here's what you need to know about them and how they differ.

The worst flu season in years is swamping California, prompting a renewed surge in hospitalizations as officials warn the ...

Doctor's visits for flu symptoms are at a 15-year high. Why is this flu season so bad? Doctors discuss flu severity, symptoms and how to stay safe.

This year’s flu season hit a grim milestone with deaths tied to the virus surpassing the number of COVID-related deaths in California for the first time in five years.

To reduce the odds of catching the flu and colds, experts say consider tried-and-true prevention methods like hand washing and mask wearing.

Flu cases are rising in Vermont, and local pharmacists say they are seeing more people coming in with symptoms. Health ...

While flu is most serious for older Americans and individuals with certain chronic conditions, it can affect people of all ...

If it seems as if everyone is sick, you may be right as the Centers for Disease Control and Prevention said that the flu is surging.