More than a dozen tigers have died after contracting bird flu at a zoo in southern Vietnam. A caretaker at Vuon Xoai zoo in ...

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

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

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 ...

A farmworker in California has tested positive for H5N1 bird flu, the state’s first presumptive positive in a human. The ...

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

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

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