Highly pathogenic avian influenza, commonly called bird flu, has been spreading faster among poultry in the European Union ...

There were 21 cases of human bird flu in California on Nov. 6. Thirteen of those cases are in Tulare County. Here's why it matters.

California dairy farmers face escalating avian flu outbreak ... USDA's APHIS and Oregon state officials are investigating a ...

An epidemiological study found that 56 percent of a large breeding colony of Caspian terns died from a 2023 outbreak of highly pathogenic avian influenza at Rat Island in Washington state. Researchers ...

A separate study published simultaneously in MMWR showed that use of PPE increased on Colorado farms once H5N1 was detected.

That may be because avian influenza is infecting California cows that have already struggled through a very hot summer. Or perhaps California cattle are infected with a particularly virulent strain.

The Centers for Disease Control and Prevention is recommending several measures to reduce the risk of farmworkers being ...

The CDC study provides the largest window to date into how the bird virus first detected in March in dairy cows may be ...

The bird flu has been spreading rapidly among cows on a handful of dairy farms in California, Idaho and Utah ... a pig. The ...

The CDC said Thursday it is updating its recommendations for testing, treatment and protection for workers who may be exposed animals infected with bird flu.