More than half a colony of Caspian terns on a small island near Port Townsend died last year amid an outbreak of bird flu, ...

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

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

The California Department of Public Health (CDPH) today said tests have identified a suspected avian flu infection in a child ...

PORTLAND, ORE. — The Atlanta-based Centers for Disease Control and Prevention (CDC) confirmed that highly pathogenic avian influenza (HPAI) in a person was part of a previously reported outbreak in ...

A child in California possibly contracted bird flu, though no human-to-human transmission was found. The U.S. CDC is involved ...

California's public health department reported a possible case of bird flu in a child with mild respiratory symptoms on ...

H5 bird flu, a type of avian influenza, has infected dozens of people in the U.S., and spread to seven states and Canada this year. As more human cases arise, there's deepening worry over whether the ...

California's public health department reported a possible case of bird flu in a child with mild symptoms on Tuesday, but said ...

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

Oregon has the unlucky distinction of becoming the first state in the country with a confirmed case of avian flu in a pig, ...