An epidemiologist makes the case that a rush of research to stop a swine flu outbreak led to an accidental lab release of an ...

The CDC’s Timothy M. Uyeki, M.D., cautioned, however, that if the virus changes, and especially if it begins to infect pigs, ...

Data from the southern hemisphere show that this year's flu shot was 34.5% effective against hospitalization in high-risk groups during that half of the globe's winter respiratory season.

Health officials in California are grappling with an escalating avian flu outbreak, which has spread through one of the ...

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

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

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

According to the CDC, there is no evidence of human-to-human transmission of bird flu in the case of the Missouri patient with no known infected animal contact.

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 ...

Human bird flu cases in California may be undercounted as farm workers avoid testing due in part to economic concerns, ...

Wearing a mask helps to prevent the spread of respiratory illnesses, according to Centers for Disease Control and Prevention ...