Avian Influenza Detected in Wisconsin Poultry Flock, Prompting Control Measures
Highly pathogenic avian influenza (bird flu) has been detected in a commercial poultry flock located in Barron County, western Wisconsin, leading to quarantine and depopulation measures to control the spread.
Minneapolis St. Paul, MN, September 15, 2026 —
Highly pathogenic avian influenza (HPAI), commonly known as bird flu, has been confirmed in a commercial poultry flock in Barron County, western Wisconsin. The detection has triggered immediate quarantine and depopulation measures aimed at preventing further spread of the virus.
The specific type of highly pathogenic avian influenza has been identified, and authorities are implementing standard biosecurity protocols. The commercial poultry operation where the outbreak occurred is now under quarantine. This measure restricts the movement of poultry and related products into, out of, or within the quarantined area.
Depopulation of the affected flock is underway. This action is a critical step in controlling the outbreak by eliminating a potential source of the virus. The process is conducted under the guidance of animal health officials to ensure it is carried out safely and humanely.
The exact number of birds in the affected flock has not been publicly disclosed. Information regarding the timeline of the detection, the specific steps taken following the confirmation, or the outcome of any subsequent inspections was not immediately available.
Avian influenza is a contagious viral disease that affects birds. While some strains can cause mild illness, highly pathogenic strains, such as the one detected, can cause severe disease and high mortality rates in poultry. The virus can spread through direct contact with infected birds, their droppings, or contaminated environments.
Officials are working to trace the origin of the outbreak and to monitor nearby avian populations, including domestic poultry and wild birds, for any signs of the virus. The public is often advised to practice good biosecurity measures to help prevent the spread of HPAI.
Further updates on the situation, including any containment progress or broader implications, are expected as the investigation and control efforts continue in Barron County.
Story summarized from the original created by Ashley Halbach on kstp.com, see more information here.
