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

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

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

The California Department of Public Health is tracking a possible case of human bird flu originating in the Central Valley.

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

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

For influenza viruses, imperfection is a strength. They constantly mutate, producing new strains that challenge immune ...

Missouri officials are under growing pressure from national public health experts to pinpoint the source of the state’s first ...

Seven people in contact with a patient hospitalized with bird flu also developed symptoms, the C.D.C. reported. Some are undergoing further tests. By Apoorva Mandavilli and Emily Anthes A possible ...

The first case of a human contracting bird ... testing and oversight of the spread of the virus, in part out of fear of another global pandemic. The CDC has supported the adaptation of state ...

Health officials are investigating whether a person in Missouri who was hospitalized with bird flu in early September might have infected a handful of others. Testing is ongoing among five health ...

LOUIS — A total of seven Missourians developed mild respiratory symptoms after being exposed to the state's first, and so far only, confirmed human case of bird ... testing them for possible ...