Based on genetic information of the virus, officials say it appears migratory waterfowl initially introduced H5N1 bird flu to ...

Health officials in California are monitoring exposed workers for symptoms on two dairy farms where two human cases of bird flu tested positive, the U.S. Centers for Disease Control and Prevention ...

Federal scientists are closely studying H5N1 genetic sequences from California dairy workers in search of any dangerous ...

The California Department of Public Health confirmed on Thursday that two Central Valley residents were confirmed as having ...

“Although there are now confirmed human cases of bird flu in our region, the risk to the general public remains low,” said Dr ...

Two more dairy workers have been infected with bird flu, making them the 15th and 16th human cases detected this year.

Two more dairy workers have been infected with bird flu, making them the 15th and 16th human cases detected this year.

The Missouri case is the only U.S. bird flu diagnosis this year where the person hadn’t had direct contact with infected ...

Antibody blood test results expected later this month may help answer a crucial question: Is there human-to-human transmission of the bird flu?

AP News Digest - California The following AP stories have moved in the last 24 hours. To find out about future plans, please visit Coverage Plan.

Federal officials plan to double the stockpile of emergency bird flu vaccines as they identify more people infected with the ...

Local health officials have confirmed that two dairy workers infected with the avian bird flu got sick while working in the ...