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

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.

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 ...

Bird flu has spread far and wide, infecting a range of species like chickens, skunks, cows, foxes and polar bears. But it's ...

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

State officials are urging vigilance after Hawaii’s first detection of H5N1 in a flock of rescued pet geese and ducks in ...

There is an inherent conflict of interest – and the potential for injury to public health – when a federal department both ...

The H5N1 strain of bird flu has infected a patient in the first ever confirmed human case of the virus, caused by the H5N1 ...