A highly pathogenic strain of avian influenza has been detected in a backyard flock in Anne Arundel County, prompting state officials to quarantine the affected premises and depopulate the birds to prevent the disease from spreading,

Bird flu was detected in a backyard flock in Anne Arundel County amid a nationwide outbreak. This was the county's first case in 2.5 years.

State laboratory testing confirmed a case of highly pathogenic H5N1 avian influenza (HPAI) in an Anne Arundel County backyard flock on March 12, 2025. The Maryland Department of Agriculture has quarantined all affected premises,

It is unclear where in Anne Arundel the case was discovered. Jessica Hackett, spokesperson for the Maryland Department of Agriculture, declined to give the exact location ; however, she said the case was detected in a backyard flock of about 40 chickens.