Here’s what to know about the United States’ first confirmed severe case of H5N1 avian influenza—and how to protect yourself.

Dr. Andrew Pekosz from Johns Hopkins discusses the CDC’s discovery of mutations in the bird flu virus linked to the first severe human case in the U.S. and its risks ...

The agency, in its latest update released Thursday, said the mutations were not found in samples taken from wild birds, suggesting the virus changed over the course of the patient’s infection.

The Centers for Disease Control and Prevention (CDC) has identified mutations in the H5N1 bird flu virus that may increase ...

The CDC stressed there has been no known transmission of the virus from the Louisiana patient to anyone else. The agency said ...

The virus in the first severe human bird flu case in the U.S. was found to have mutated. Newsweek's live blog is closed.

A new mutation and the first severe case of H5N1 bird flu discovered in a human in Louisiana has raised concern among some ...

Initial state and local tests for bird flu were inconclusive, and the county sent a sample to the CDC for testing. In the meantime, the county announced that the child had consumed unpasteurized ...

Although human infections in the United States have been rare, according to the CDC, bird flu has infected 60 people since April. Bird flu is a disease caused by a family of flu viruses primarily ...