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

Genetic analysis of a bird flu virus detected in a person in Missouri who didn’t previously have contact with animals offers ...

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 ...

The U.S. Department of Agriculture is projecting that egg prices will decrease in the coming months. But experts said that ...

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

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

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

So far, there have been 14 human cases of bird flu this year. All the patients — except the one from Missouri — had been linked to sick dairy cows or poultry.

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

In a case that continues to confound scientists, U.S. health officials said Thursday that they still don't know how a ...