The U.S. has seen earlier and more intense surges of the flu and RSV this year than is typical, pediatrician Dr. Ryan Fulton ...

The U.S. winter virus season is in full force, and by one measure is the most intense in 15 years.

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

There are two broad types of influenza — flu A and flu B — and many strains within those, but the current spike in flu cases ...

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 surge has come at a time when numbers are usually dropping off. It's the worst in 15 years, says one New Jersey doctor.

With seasonal influenza (flu) cases and hospitalizations high, CDPH is reminding Californians it’s not too late ...

Snow and bitter cold canceled most classes in the area Tuesday, with cancellations already pouring in for Wednesday.

Erin Davis/Axios Visuals At least 11 children in California have died from flu-related illnesses this winter amid the nation's worst flu season in 15 years. Why it matters: The virus is causing more ...

Flu A and Flu B are distinct viruses, each with its own challenges. Understanding the difference helps you protect your ...

Officials said one child died in the eastern part of the state, while another recently died in central North Carolina.

Levels of influenza nationwide are now at the highest they have been since the peak of the 2009 swine flu pandemic, according ...