US states had reported outbreaks of H5N1 flu in dairy cows as of October 4, 2024. That amounted to a total of 255 affected ...

California reported its first H5N1 outbreaks in dairy cows in August. The two infected humans confirmed in the state on ...

Federal agencies are studying a case of human avian influenza in which the infected person did not have contact with affected ...

The spread of the H5N1 bird flu virus across 14 states in the US has baffled health experts, who are waiting for a few tests ...

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

Both patients were dairy workers whose illnesses were mild. Investigators are continuing to evaluate the contacts of a ...

A routine flu screening in late summer found the H5N1 virus in a Missouri patient. Unlike the other reported cases of avian ...

A routine flu screening in late summer found the H5N1 virus in a Missouri patient. Unlike the other reported cases, this ...

A Missouri patient hospitalized with flu-like symptoms tested positive for the avian flu in the first known human case with ...

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

The new cases also mark the first human cases in California, the country's largest milk producer. The state is currently ...

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