A newly discovered virus hiding inside a common gut bacterium could help explain one of medicine’s long-standing mysteries: why a microbe found in both healthy people and cancer patients is linked to ...

A new study suggests that the key to understanding colorectal cancer may lie not only in gut bacteria, but in the viruses ...

A lethal virus that can inflame and damage the brain has re-emerged in India, reviving fears that a pathogen with a very high death rate could again slip across borders. Health agencies are racing to ...

Highly pathogenic avian influenza (HPAI) H5N1 has been confirmed in wild birds in Central California counties, adding to detections previously reported in the San Francisco Bay Area. Federal ...