Wisconsin detects HPAI in poultry flock

By Blake Jackson

A case of highly pathogenic avian influenza (HPAI H5N1) has been confirmed in a commercial poultry flock in Burnett County, Wisconsin. The Wisconsin Department of Agriculture, Trade and Consumer Protection (DATCP), alongside the U.S. Department of Agriculture (USDA), is managing the situation through a coordinated response.

Infected poultry will not be moved, and the birds have been depopulated to prevent the disease from spreading. These birds will not enter the food supply. While HPAI is a concern for poultry health, the U.S. Centers for Disease Control and Prevention (CDC) has stated that it does not present an immediate risk to public health. Proper handling and cooking of poultry and eggs to an internal temperature of 165˚F effectively eliminates the virus.

HPAI H5N1, caused by influenza A viruses, has been circulating in both wild and domestic birds across North America since December 2021. The virus spreads quickly and can be fatal to poultry, with transmission occurring through direct contact with infected birds, their droppings, or contaminated equipment and clothing.

DATCP is urging all livestock owners to adopt strong biosecurity measures to protect their animals. These measures include disinfecting equipment, limiting access to animals, and keeping new animals separate for at least 30 days. Poultry owners are advised to house their birds indoors whenever possible.

When HPAI is detected, a 10-kilometer control area is established around the infected site, restricting movement of poultry. DATCP offers an online mapping tool to help poultry owners determine if their flocks are within an active control area.

Although the risk to the general public remains low, Wisconsin's Department of Health Services (DHS) is monitoring farm workers who have been in contact with infected birds for symptoms. Workers can request personal protective equipment (PPE) from the DHS Office of Preparedness and Emergency Health Care.

DATCP encourages all livestock owners to register their premises, as required by state law, to receive critical updates during outbreaks. For more information, visit DATCP’s website on HPAI in poultry and dairy cattle.

Photo Credit: gettyimages-wikoski