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

A backyard flock in Vermont was sickened with H5N1, agricultural officials said on Thursday, following other reports of bird ...

The virus has spread among dairy cattle, humans and other mammals. But officials say the current public health risk is low.

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.

Northwest Naturals says a batch of Feline Turkey Recipe tested positive for bird flu. One cat has died in connection with the ...

A Louisiana woman with the first severe case of bird flu in the US had a mutated form of the disease that may make it more ...

Northwest Naturals is recalling a line of its pet food after authorities Oregon linked the death of a cat to a batch ...

California officials have declared a state of emergency over the spread of bird flu, which is tearing through dairy cows in ...

The bird flu outbreak has spread to all 50 states, these maps show. Here are the symptoms and what to do if you think you ...

The first severe case of H5N1 bird flu was confirmed in Louisiana. Here is a map of other states that have been affected.

Reports that cows have been infected despite farmers' preventive measures indicate there are multiple routes of transmission ...

Los Angeles County health officials have identified three more cats with presumptive H5N1; the source of the virus has not ...