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

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

A new strain of bird flu has infected a dairy worker in Nevada, marking the first cow-spread case, the CDC has reported.

I think all of us know somebody who’s gotten the flu recently,” says Dr. Luis Ostrosky, chief of infectious disease at ...

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

A surge in flu-related hospitalization across western Pennsylvania – the highest statewide since 2010 – has some health centers reintroducing mask mandates. Others, including officials at Chan ...

Avian influenza is continuing to plague poultry and dairy farming operations, and with the virus spreading across the country ...

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

Hospitalizations up, outbreak hits Washoe County schools. None of those who died were vaccinated, health official says.

Flu cases are surging across the nation, closing nearly a dozen schools and swamping hospitals in some states. At least 24 ...

During this week, of the 4,377 viruses reported by public health laboratories, 4,264 and 113 were influenza A and B, respectively. Of the 3,458 influenza A viruses subtyped, 53.7 percent were ...

Influenza cases continue to mount with the virus reaching activity levels in the U.S. not seen for the last 15 years, according to the Centers from Disease Control and Prevention.