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

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

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.

Tiny genetic alterations could help the bird flu virus enter cells in the upper respiratory tract, the C.D.C. said. But there ...

In coming years, the bird flu may cost billions of dollars more in expenses and losses. Worse, the outbreak poses the threat ...

Samples from a hospitalized patient in Louisiana show changes that could make the H5N1 virus spread more easily between ...

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

So far, the H5N1 virus isn't transmitted between people — but the CDC has found a mutation in a human case "concerning." ...

"I feel like we should've learned our lesson from COVID, that just because we aren't testing doesn't mean the virus isn't there," Dr. Leana Wen said.

The CDC recently confirmed a severe human case of bird flu – the latest in an upsurge in virus activity this year. How ...

Among 61 people infected with bird flu in the U.S. this year, a Louisiana patient is the first to have "severe" disease ...

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