With ongoing spread of COVID and the flue, you might be tempted to think either of them are the most contagious disease, but ...

Add Yahoo as a preferred source to see more of our stories on Google. If you test positive for COVID-19, learn that a loved one has been infected or find out you’ve been exposed to someone with the ...

Though it is commonly called the "winter vomiting disease," norovirus outbreaks are still cropping up around the country in late May.

About 260,000 fans are expected to visit the Bay Area during the World Cup.

Hepatitis A is a highly contagious virus that targets the liver. It’s typically transmitted via contaminated food or water. Hepatitis is a condition characterized by liver inflammation, often ...

Norovirus, often described as a highly contagious 'vomiting bug,' is spreading across multiple regions of the United States as wastewater surveillance shows rising viral levels in several states, ...

Hepatitis is contagious. It is an inflammation of the liver that results from a virus. There are five types of viral hepatitis, and all are contagious, although they can spread in different ways.

If you test positive for COVID-19, learn that a loved one has been infected or find out you’ve been exposed to someone with the virus, you undoubtedly have lots of questions. The one that probably ...