A person in Missouri with no reported exposure to animals was confirmed to have been infected with H5-type bird flu, 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 ...

A Missouri resident has tested positive for bird flu even though there is no evidence the person came into contact with an animal infected with the virus, the Centers for Disease Control and ...

Avian flu in dairy cows could stick around on US farms forever, and is raising the risk of outbreaks in mammals—including ...

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

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 ...

An extensive look at wastewater samples taken across the United States from May to July found traces of the H5N1 bird flu ...

Several labs will work with federal health authorities to develop a test for avian influenza, as the number of human cases ...

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

Mysterious US bird flu case in person without any known contact with an infected animal raises spectre of human-to-human ...

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

A person in Missouri has been infected with bird flu despite having no immediate known exposure to possibly infected animals ...