Twenty new viruses found in bat kidneys in China include strains genetically similar to Nipah and Hendra, alarming experts ...

The H5N1 avian flu is circulating in cows and other mammals. Whether it will make a permanent leap to humans is another question ...

Researchers found that lenacapavir reduced almost 100% reduction new HIV infections among participants who received it as a ...

Scientists in China have discovered 22 potentially pandemic-causing viruses never before detected in nature — including two ...

A new study finds that prior herpesvirus infections are linked to a faster age-related increase in blood biomarkers ...

A new COVID variant called "Nimbus" is spreading. Here's what you need to know about the incubation period, symptoms (including "razor blade throat") and when to take a test.