Maryland's second case of the H5N1 bird flu has been detected at a poultry farm in Queen Anne's County, according to the Maryland Department of Agriculture.

A second Caroline County farm is dealing with bird flu cases among its flock. The farm is near the previous farm whose flock tested positive. Birds from the affected flock will not enter the food system. It represents Maryland's third known case of bird flu affecting a commercial farm. A farm in Queen Anne's County also had its flock test positive.

Bird flu outbreaks have been detected at three poultry operations in Maryland and Delaware, impacting more than 500,000 chickens and leading to heightened alert among officials in the Washington region.