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

Data from the Centers for Disease Control and Prevention shows seasonal flu activity continues to increase across the country ...

It's flu season, but not all influenza is the same. If you're feeling sick, it helps to know the difference between flu A and ...

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 ...

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 same. There are some notable differences between flu A and flu B strains.