In 2009, H1N1 bird flu caused the first global flu pandemic in 40 years, with the first infections detected in California.

A bird flu outbreak has been confirmed at a commercial poultry farm in Cornwall. The government said all poultry on the ...

Health officials have announced six more H5N1 bird flu infections in humans: five in California and the first known case in ...

Hospitals had been asked to conduct extra surveillance for possible avian flu cases in the spring and summer after highly ...

Bird flu continues to spread across the U.S., with new infections in Hawaii and continued human outbreaks in California.

Cases of H5N1 bird flu in U.S. dairy and poultry workers have largely been mild. However, a new case in a British Columbia ...

Officials suspect wild migrating birds are likely to blame for the first known infection of a flock in Hawaii, which had been the last state in the country with no reported cases in poultry or wild ...

As a virus scientist in South Africa, I’ve been watching with dread as H5N1 bird flu spreads among animals in the United ...

The H5N1 virus that infected a Canadian teen appears not to have spread, but it shows signs of mutation that makes flu ...

California health officials reported Tuesday that a child in Alameda Co. has been infected with bird flu; source unknown.

Blood samples from 115 dairy workers in Michigan and Colorado reveal cases of the highly pathogenic bird flu have been ...