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.

Partial CDC data suggest that influenza deaths may have already reached as high as 2% of deaths for the week ending on Feb. 1 ...

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

Flu deaths have surpassed COVID-19 in California for the first time since the pandemic, with concerns over low vaccination rates and a likely severe flu season.

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.

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 ...

Most of Trump’s health picks are uninterested in using most of the tools that can limit the spread of infectious disease.

An American Curl cat digs its claws into a scratching post. A small but growing number of house cats have gotten sick from ...

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

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

When H5N1 first came to the attention of infectious disease professionals 20 years ago, there was concern it could mutate and ...

A second subtype of H5 bird flu, known as D1.1, was detected in dairy cattle and infected one worker in the US state of ...