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

The flu can also cause a general feeling of fatigue or malaise, Ray says, as well as gastrointestinal issues like diarrhea ...

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

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

Flu A and flu B are two different strains of influenza, explains Thomas Russo, M.D., professor and chief of infectious ...

“Influenza B can be severe as well, but influenza A is the dominant version of influenza infecting people right now.” Both ...

The United States is experiencing its most severe flu season in more than a decade, with the U.S. Centers for Disease Control ...

There are two broad types of influenza — flu A and flu B — and many strains within those, but the current spike in flu cases ...

The influenza A virus genome consists of eight segments of single-stranded, negative-sense viral RNA, which encode multiple ...