Here's what you need to know about this season's H3N2 flu symptoms, treatment, when to go to the hospital and whether to get ...

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, ...

Influenza, commonly called the flu, is a respiratory infection caused by the influenza virus. It is contagious, which means it passes easily from one person to another. Although influenza viruses can ...

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 Michigan.

This article originally published at 'Super flu' confirmed in Calif. as hospitalizations hit season high.

Influenza, which is more commonly known as the flu, is a highly contagious respiratory illness caused by viruses. There are three types of influenza viruses that make people sick: A, B and C.

Flu, viral fever, and COVID-19 all cause fever and respiratory symptoms, but key differences in onset, symptom patterns, ...