Influenza A and B are the most common types of flu in humans. Here, learn about the differences between influenza A and B, including symptoms and treatments.

What’s the difference between Type A and Type B? Influenza A viruses come in many varieties. Four subtypes commonly affect humans, Dr. Lowen said — you may have heard of H1N1, for example.

Two types of influenza viruses are responsible for seasonal flu outbreaks: Influenza A and B. Influenza A accounts for around 75 percent of all cases and tends to cause more severe illness in adults.

Influenza A, NYSDOH said, has represented most of the flu infections this season. Influenza B cases start to rise later in ...

Birds can be infected by influenza A viruses and their subtypes but can’t carry type B or C influenza viruses. There are three main avian flu subtypes, including H5, H7, and H9.

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 flu B symptoms, experts say.

As the Centers for Disease Control and Prevention (CDC) explains, bird flu is a disease caused by the influenza A virus. At the same time, recent CDC data shows that seasonal influenza A is rising ...

Influenza B viruses, however, typically change more slowly than Influenza A and only infect humans. Flu symptoms . Experts say there isn't much difference in symptoms between the two, which both ...

With terms like "Influenza A," "Influenza B," "H5N1" and more currently floating around, this year's flu season can get confusing. Here's what you need to know about the current flu season and its ...

During Week 50 of this year, testing by public health laboratories in different parts of the U.S. found 842 cases caused by influenza A viruses and 29 by influenza B viruses. They subtyped 593 of ...