The fourth human case of bird flu linked to the current dairy cow outbreak was confirmed on Wednesday in a dairy worker in Colorado, according to the Centers for Disease Control and Prevention.

The U.S. Department of Agriculture has performed more than 17,000 tests for avian influenza on cattle, with 139 dairy herds throughout a dozen states. (Getty Images) WASHINGTON — Public health ...

The state health department identified a human case of avian influenza H5 infection as the virus has put more than two dozen dairy cattle herds under quarantine. An employee at a dairy farm in ...

A second Colorado poultry farm has reported a case of bird flu in a worker, marking the state's seventh human case this month amid the ongoing outbreak among dairy cows. Colorado health officials said ...