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

Two California farm workers have tested positive for bird flu, federal health officials said Thursday, marking the first two ...

A California dairy worker appears to be the state’s first person infected with the bird flu, officials announced Thursday.

As an outbreak of bird flu among dairy cows continues to spread in the United States, two more cases have been reported in ...

The Centers of Disease Control confirmed on Thursday that two additional cases of the bird flu were identified in California, ...

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

State officials say a dairy worker in the Central Valley likely contracted H5N1 bird flu. They say the risk of infection ...

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

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

More than a dozen tigers were incinerated after the animals contracted bird flu at a zoo in southern Vietnam, officials said.

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

A second farmworker in California has tested positive for H5N1 bird flu, just hours after the state announced its first ...