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

While we often refer to it as "the flu," the influenza virus has several strains. Here's what to know about the two most ...

It's flu season right now, and the U.S. is in the midst of a wave that's straining hospitals. But not all influenza is the ...

While we often refer to it as "the flu," the influenza virus has several strains, with flu A and flu B considered the most ...

The flu is spreading far and wide across the U.S. – and influenza A is largely to blame. Of all the flu tests reported to the ...

But what does it mean to have a flu A or flu B season? Do these types of flu have different symptoms? And does one cause more severe illness than the other? Experts have been studying influenza ...

But what does it mean to have a flu A or flu B season? Do these types of flu have different symptoms? And does one cause more severe illness than the other? Experts have been studying influenza ...

“Influenza A typically causes worse symptoms compared to influenza B, and patients are more likely to get hospitalized with influenza A compared to influenza B,” said Dr. Donald ...