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 close contact of someone with bird flu became ill on the same day, the C.D.C. reported. But the second person was not ...

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.

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

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

The Centers for Disease Control and Prevention (CDC) on September 13 shared new information from Missouri officials on ...

Public health officials are still trying to determine how a Missouri resident contracted bird flu without having any contact ...

A patient in Missouri who was hospitalized after an infection with bird flu had the H5N1 strain of the virus, the US Centers for Disease Control and Prevention confirmed Friday. The viral sequence ...

Sept. 14 (UPI) --A close contact of a Missouri resident identified as having a human case of the H5N1 avian flu also became sick around the same time, the Centers for Disease Control and ...

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

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

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