But not all influenza is the same. There are some notable differences between flu A and flu B strains. On the heels of a post-holiday COVID surge, flu cases and hospitalizations are ticking upwards.

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

Is it possible to get the flu twice in the same season? Experts share who is more likely to get reinfected and how to stay safe during this severe flu season.

While flu A and flu B share many symptoms, there are differences between how the viruses spread, who they affect most, and ...

Influenza, commonly known as the flu, is a contagious respiratory illness caused by the influenza virus. According to the Centers for Disease Control and Prevention (CDC), there are four types of ...