Hospital workers reported respiratory symptoms after encountering a Missouri patient with H5N1 who had not been exposed to ...

The latest developments are highly concerning, as they raise the possibility that the H5N1 virus has evolved the ability to ...

U.S. health officials have run into obstacles in their efforts to determine whether a Missouri person infected with H5N1 bird ...

A routine flu screening in late summer found the H5N1 virus in a Missouri patient. Unlike the other reported cases of avian ...

A routine flu screening in late summer found the H5N1 virus in a Missouri patient. Unlike the other reported cases, this ...

The Missouri case is the only U.S. bird flu diagnosis this year where the person hadn’t had direct contact with infected ...

In what could be the first cases of bird flu spreading between humans in the United States, a group of potential H5N1 ...

Missouri officials are under growing pressure from national public health experts to pinpoint the source of the state’s first ...

Further testing could confirm whether the patient, who has since recovered, actually had bird flu despite testing positive.

In what could be the first cases of bird flu spreading between humans in the United States, a group of potential H5N1 ...

Seven people fell ill with flu-like symptoms after contact with someone infected with H5N1, raising fears that the virus has ...

None of the health care workers or other contact have tested positive for avian flu antibodies so far — but could their ...