Feeling under the weather? You could have Influenza Type A. Here's the difference between Influenza Type A and Type B.

One type mutates often and causes seasonal pandemics. The other one doesn't. Here's what else is different.

A fast-spreading new flu strain is gaining a reputation as a monstrous “super flu.” The mutation of influenza A(H3N2) called subclade K is driving up infections across the country, including in New ...

Flu is rising rapidly across the U.S., driven by a new variant of the virus. The Centers for Disease Control and Prevention ...

Is it flu A or flu B, and how long is it contagious? Here's what to know about the flu virus running rampant in New Jersey, symptoms, more.

The sooner someone takes a flu test after they start to experience symptoms of the illness, the better, Dr. Sheldon Campbell ...

The CDC estimates there have been at least 19 million cases so far this season.

Based on thousands of tests across CHI Health hospitals and clinics, one in four flu tests are now positive for Influenza-A, ...

Health experts say the U.S. flu season appears to be waning with two straight weeks of decline in measures of flu activity.

California public health officials cautioned more children are testing positive for the flu this season. Here are flu ...