The case of highly pathogenic H5N1 avian influenza was found in a backyard chicken flock in Montgomery County, state health officials said.

A highly contagious strain of avian influenza has been detected in a Montgomery County backyard flock, prompting quarantines and immediate depopulation of affected birds, state officials announced. Laboratory testing confirmed the presence of highly pathogenic H5N1 avian influenza (HPAI),

A positive case of H5 avian influenza was detected at a commercial broiler farm in Dorchester County, the Maryland Department of Agriculture said Monday.

Health and Agriculture officials are keeping watch on bird flu spread for fear of supply chain issues and public health risk.

Bird flu is now believed to be widespread in Massachusetts and is likely present even in places where there has not been a confirmed positive, state environmental and health officials said Wednesday.

As the bird flu continues to spread in the U.S., Massachusetts farmers must protect their flocks. But due to the recent rise in the disease, growing and raising their own food on property is a tradition that may have to be put on hold.

A case of avian influenza, also known as bird flu, has been confirmed at a commercial poultry farm in Norfolk. The highly pathogenic virus was detected at a premises near Loddon, the Department for Environment,