A patient in Missouri who was hospitalized after an infection with bird flu had the H5N1 strain of the virus, the US Centers ...

The Centers for Disease Control and Prevention has provided a major update on the first human case of bird flu in the US with ...

Health officials on Thursday said they don’t know how a Missouri person caught bird flu but believe it may be a rare instance ...

Mystery H5 flu case had a close contact who was ill at same time; CDC hopes blood tests will show if there was a connection.

The Centers for Disease Control and Prevention said Thursday it has yet to identify “a clear source” of infection in a ...

Federal officials are still trying to determine how a Missouri resident with no known exposure to bird flu, contracted the ...

In a disclosure that can't eliminate the possibility that bird flu may have spread from one human to another for the first ...

A close contact of a Missouri resident identified as having a human case of the H5N1 avian flu also became sick around the ...

With the approach of fall and cooler weather across the United States, officials say the risk posed by the H5N1 bird flu ...

The world is watching how the U.S. is responding to the H5N1 bird flu outbreak in dairy cattle, a top WHO official said.

A household contact of a Missouri patient who contracted bird flu also became ill on the same day, the CDC said in its weekly update on the H5N1 outbreak among dairy cows and poultry across the U.S.

As the fall and winter seasons approach the US, scientists are worried about a renewed spread of the deadly H5N1 bird flu ...