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, ...

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

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 ...

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, ...

Black, Hispanic, and American Indian/Alaska Native (AI/AN) adults in the United States are more likely to be hospitalized with flu, as well as less likely to be vaccinated against flu, according to a ...

Four agricultural workers in Washington state were recently diagnosed with avian influenza A (H5N1). The cases mark the first human infections of the disease under investigation in the state.

The case concerned health officials and experts because human-to-human transmission of the H5N1 strain of avian influenza could mark the start of a new pandemic ...