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

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 ...

Health officials say they don’t know how a Missouri person caught bird flu, but they believe it may be a rare instance of a ...

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

As bird flu continues to spread through dairy cow herds and poultry flocks, the Missouri case has raised the possibility of ...

A person sickened by bird flu in Missouri was probably an isolated case, federal health officials said Thursday, though they ...

The number of California dairy herds reported to have outbreaks of H5N1 bird flu has grown to eight.

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

Epidemiologists have not yet identified exactly how a person in Missouri contracted bird flu last week, said the U.S. Centers ...