The Centers for Disease Control and Prevention should have results later this month that provide more insight into how a ...

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

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.

Chances are low that human-to-human spread of bird flu occurred in a group of people who were exposed to a patient infected ...

Both patients were dairy workers whose illnesses were mild. Investigators are continuing to evaluate the contacts of a ...

Federal officials plan to double the stockpile of emergency bird flu vaccines as they identify more people infected with the ...

Testing is ongoing among five health care workers and a household member exposed to the infected person who all came down ...

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

Antibody blood test results expected later this month may help answer a crucial question: Is there human-to-human ...

As more farm workers get sick with avian influenza, the US federal government is putting $72 million toward strengthening its ...

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