March 27, 2025
An additional backyard flock in Montgomery County, MD 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.

All announcements and pertinent information regarding the HPAI situation in Maryland will be posted at www.mda.maryland.gov/avianflu. This is the second detection in Montgomery County following a detection in January.