“The changes observed were likely generated by replication of this virus in the patient with advanced disease rather than primarily transmitted at the time of infection,” the CDC said.

A genetic analysis suggests the bird flu virus mutated inside a Louisiana patient who contracted the first severe case of the illness in the United States. The U.S. Centers for Disease Control and ...

Zoom took over the world back when the pandemic hit, and some might say this move inadvertently revolutionized the work industry.

The CDC stressed there has been no known transmission of the virus from the Louisiana patient to anyone else. The agency said its findings about the mutations were “concerning,” but the risk ...