Human bird flu cases in California may be undercounted as farm workers avoid testing due in part to economic concerns, ...

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

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

However, there is urgent concern over dairy cows. In California’s Central Valley, the carcasses of dead cattle have been ...

Cows in California are dying at much higher rates from bird flu than in other affected states, industry and veterinary ...

Five more people who presumably contracted the bird flu are being tested in California's Central Valley and are pending CDC ...

A fourth person contracted bird flu in California amid outbreaks in the state’s dairy industry, state officials said Thursday ...

Concerns about bird flu — officially known as avian influenza A (H5) — continue to mount, particularly in California.

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

The state now has 11 cases of people catching the virus, as health officials monitor any further spread from poultry and ...

California has six confirmed human bird flu cases and health officials suspect five more among Central Valley dairy workers.

After an outbreak of bird flu in Cache County, weekly testing will now be required for all dairies in the county, in an ...