Hospital workers reported respiratory symptoms after encountering a Missouri patient with H5N1 who had not been exposed to ...

Further testing could confirm whether the patient, who has since recovered, actually had bird flu despite testing positive.

California, the biggest U.S. milk-producing state, on Thursday confirmed two human cases of bird flu in people who had ...

Two dairy workers in California were infected with bird flu, the 15th and 16th human cases detected in the U.S. this year.

California is investigating a possible case of bird flu in a dairy worker who had contact with infected cattle, the state's ...

The big cat outbreak is the latest worrying instance of widespread bird flu transmission to mammals. Bird flu appears to have ...

An employee at a Central Valley dairy facility has a “presumptive positive” test result for H5N1 — the highly pathogenic ...

The Centers for Disease Control and Prevention announced on Thursday afternoon that it had confirmed two human cases of H5 ...

A California dairy farm worker who had contact with H5N1-infected cows appears to have contracted the avian influenza virus, ...