The U.S. is seeing a "quad-demic" as cases of COVID-19, flu, RSV and norovirus spread at the same time. Experts said this is ...

Flu season is here in California, but other illnesses are in full swing in the Golden State. Here are the symptoms and how ...

Here are some ways to prepare for this cold and flu season as four illnesses circulate the country at one time.

Bon Secours and Prisma Health are implementing new visitor restrictions as cases of influenza and respiratory illnesses rise ...

There’s no medication for norovirus. Instead, you’ll need to rehydrate as much as possible with water and other liquids. Seek ...

This fall saw an unusually high number of cases of “walking” or mycoplasma pneumonia, a mild pneumonia that typically causes ...

Respiratory illnesses like influenza, COVID-19, and RSV are surging across the United States, according to CDC data.

— The flu, caused by influenza viruses that are always changing, leads to fever, chills, cough, sore throat, runny nose, body ...

Most U.S. states are reporting high or very high flu-like activity, while COVID-19 rates remain lower than this time last ...

As infections from three viruses—human metapneumovirus (HMPV), bird flu, and norovirus—continue to climb, infectious disease ...