A flock of nearly 878,000 in Tulare County is the first instance of avian flu in U.S. broilers since February.

Seven cases of H5N1 bird flu were detected in California this week. No confirmed cases have occurred in people or livestock ...

All of the state's cases have been linked to contact with infected dairy cows, officials said. No human-to-human transmission ...

California H5N1 outbreaks have had little impact on overall milk production, but experts warn that outbreaks could soon ...

The CDC reports a total of 27 human cases of H5N1 in the United States, not including the recent presumptive cases. So far, ...

A third farmworker has tested positive for bird flu in California, according to the state’s health department. If confirmed ...

93 California dairy herds have tested positive for the H5N1 virus as of Oct. 9. California has roughly 1,100 herds and 1.7 million cows. It accounts for 20% of the milk produced in the country.

From the earliest days of the H5N1 bird flu outbreak in dairy cattle, experts watching the evolving situation have worried ...

Another five suspected cases of bird flu were reported today in California, where six cases have already been confirmed, ...

U.S. and California health officials confirmed two new cases of H5N1 bird flu in dairy farm workers in the state on Friday, ...