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

The Centers for Disease Control lists Tennessee topping out at "very high" when it comes to flu-like activity.

Last year there were 207 pediatric deaths attributed to the flu, NBC News reported. The CDC said the number of cases is ...

Influenza is surging in the U.S., with doctor's visits for flu symptoms at a 15-year high. Why is this flu season so bad?

That flu activity is peaking now isn’t unexpected. You can catch the flu year-round, and peak season in the U.S. tends to be between December and February. February, though, is the clear winner. Since ...

A Nevada dairy worker has tested positive for a newly identified strain of bird flu, sparking concerns about potential cow-to ...

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.

Flu cases soar across the US; Sacramento sees highest flu-related medical visits since 2009. Learn prevention tips and why vaccination rates matter.

Are people at risk for bird flu? How can I protect myself? Bird flu’s risk for the general public is still low, with no signs ...

Flu infections are at or near their highest levels in at least 15 years and are still rising, the Centers for Disease Control and Prevention says.

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