An investigation into a suspected cluster of human cases of bird flu in Missouri suggests there was no human-to-human spread. While reassuring, the news comes as more human cases are being detected.

Health officials said Thursday that there's no evidence bird flu is spreading between people after investigating a mysterious ...

Emails show how health officials struggle to track the bird flu, partly in deference to the agricultural industry. As a ...

A Missouri resident who shared a home with a patient hospitalized with bird flu in August was also infected with the virus, federal officials reported Thursday. But symptomatic health care workers who ...

The Centers for Disease Control and Prevention (CDC) announced Thursday that there is no evidence of human-to-human ...

The US Centers for Disease Control and Prevention on Thursday confirmed two of the four presumptive positive bird flu cases ...

Testing showed a Missouri bird flu patient did not infect the people around them, federal health officials said Thursday, a ...

The bird flu virus hasn't yet spread from person to person, the CDC said Thursday, releasing findings from a monthslong probe ...

The U.S. Centers for Disease Control and Prevention confirmed two of four presumptive positive bird flu cases among poultry farm workers in Washington state. The agency also ruled out bird flu ...

Blood tests of several people who were in contact with a patient in Missouri who caught H5N1 bird flu without any known ...

The number of people infected with bird flu in the U.S. has risen to at least 31, federal health officials said Thursday, but ...