Highly pathogenic avian influenza, HPAI, or “bird flu,” cases are popping up, so here are some expert facts about the viral ...

H5N1 avian influenza, commonly known as bird flu, has long ceased to be just a problem for birds. Since its arrival in the United States in 2014, the virus has aggressively expanded its territory, ...

Flu levels are rising once again across the United States, with emergency department visits increasing among children over 5, ...

India faces renewed concern over Nipah virus in West Bengal and bird flu in Bihar. While both are zoonotic, Nipah is deadlier for humans due to its high fatality rate, severe neurological impact and ...

Pediatricians at Penn State Health Golisano Children’s Hospital are seeing flu, strep throat, ear infections, RSV and ...

Learn how Subclade K, a variant of the influenza A virus, is affecting immune responses and contributing to this year’s intense flu season.

Respiratory viruses are usually most active from October through March, health officials say.

Although vaccination is often associated with autumn, late winter still raises the question of whether getting vaccinated ...

COVID and flu tests aren't designed to tell you how sick you are, but if you use them to monitor your infection, they can ...

A growing body of research suggests that everything from the shape of your lungs to how you enunciate your Ts and Ks could make you a flu superspreader.