The patient in Louisiana who was hospitalized with severe bird flu illness was found to have a mutated version of the virus.

A virologist explains that why this probably isn’t the big one — but that it’s a sign of bad things happening with the virus.

The Biden administration should approve a vaccine for the H5N1 bird flu virus, according to a former state health ...

Federal health officials say that not only has a Louisiana resident contracted the first severe case of bird flu in the U.S., ...

A genetic analysis suggests the bird flu virus mutated inside a Louisiana patient who contracted the first severe case of the ...

A genetic analysis of viral samples from a patient in Louisiana hospitalized with the first severe case of bird flu showed ...

Cases of norovirus and bird flu are on the rise compared to last year, according to data from the CDC. Several states have experienced over 10 confirmed outbreaks of norovirus, a contagious virus that ...

Federal health officials have confirmed unsettling new details about the first United States case of severe bird flu, ...

The virus is spreading among animals, while viral mutations raise concerns about potential adaptation to human hosts.

The CDC said the patient’s sample showed mutations in the hemagglutinin (HA) gene, the part of the virus that plays a key ...

The CDC said that testing of a person with a severe case of bird flu indicated the virus had mutated but the risk remains low ...

The patient was likely infected after having contact with sick and dead birds in a backyard flock, the US Centers for Disease Control and Prevention said earlier this month.