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

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.

The CDC confirmed a case of a new strain of bird flu in a dairy worker who contracted the virus from infected cows on a ...

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.

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 ...

Nevada reports its first human case of H5N1 avian influenza in a dairy farm worker, with CDC considering public risk low.

Health experts said there's a "very high" level of influenza circulating in Maryland, which is responsible for 7 deaths, ...

Flu-related hospitalizations are at an all-time high as the virus continues to surge across the state.

Both COVID-19 and Respiratory syncytial virus are occurring at much lower levels than in previous years, though they are ...

Influenza A virus particles strategically adapt their shape -- to become either spheres or larger filaments -- to favor their ability to infect cells depending on environmental conditions, according ...

The Montana Department of Public Health and Human Services is asking Montanans to take precautions to prevent influenza infection.Outbreaks have been reported i ...