Dairy industry experts say the virus entered California after local cows were shipped to another state and then returned to ...

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

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

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

93 California dairy herds have tested positive for the H5N1 virus as of Oct. 9. California has roughly 1,100 herds and 1.7 ...

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

As a rapidly increasing number of California dairy farms suffer outbreaks of H5N1 bird flu, industry experts say it remains ...

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

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, ...