The United States Department of Agriculture’s (USDA) Animal and Plant Health Inspection Service (APHIS) has confirmed the presence of highly pathogenic avian influenza (HPAI) in two flocks in Montana – a non-commercial, backyard flock (poultry) in Cascade County, and a non-commercial, backyard flock (non-poultry) in Judith Basin County.
Samples from the flocks were tested at the Montana Veterinary Diagnostic Laboratory, part of the National Animal Health Laboratory Network, and confirmed at the APHIS National Veterinary Services Laboratories in Ames, Iowa.
APHIS is working closely with state animal health officials in the state on a joint incident response. State officials quarantined the affected premises, and birds on the properties will be depopulated to prevent the spread of the disease. Birds from the flocks will not enter the food system.
According to the U.S. Centers for Disease Control and Prevention, the recent HPAI detections do not present an immediate public health concern. No human cases of these avian influenza viruses have been detected in the United States.
Nationwide, almost 23 million birds have been killed to prevent the spread of avian influenza, as case counts grow in the U.S.
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