US: Preliminary Testing Confirms Highly Pathogenic Avian Influenza in Second Caroline County Farm in Maryland

An additional commercial broiler flock in Caroline County, MD within the initial control area of the first Caroline County positive farm announced on January 10, 2025, has tested presumptive positive for H5 avian influenza at the Salisbury Animal Health Laboratory, part of the National Animal Health Laboratory Network. Additional samples have been sent to the U.S. Department of Agriculture’s National Veterinary Services Laboratory (NVSL) for further confirmation.

The Maryland Department of Agriculture has quarantined the affected premises, and the birds on the property are being depopulated to prevent the spread of disease. Birds from the affected flock will not enter the food system.