The number of bird flu cases has risen to 31 in the U.S. but there is no evidence of person-to-person transmission, the CDC ...

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

US health officials didn’t find signs of human-to-human bird flu spread after testing a group of people in Missouri with ...

Centers for Disease Control and Prevention officials told reporters Thursday that there is no evidence that there has been ...

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

The case concerned health officials and experts because human-to-human transmission of the H5N1 strain of avian influenza ...

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

The Centers for Disease Control & Prevention confirmed two human cases of avian influenza in Washington on Thursday following ...

Federal health authorities have confirmed at least two people in Washington have contracted bird flu after working around ...

New test results suggest Missouri did not see a cluster of bird flu cases, a possibility that some experts had feared.

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

On Thursday, CDC officials said test results were negative for the health ... Neither met the World Health Organization's ...