The Sconi

DATCP and authorities from the U.S. Department of Agriculture (USDA) are collaborating to address a recent case of Highly Pathogenic Avian Influenza (HPAI) in Sheboygan County. The site of infection is under quarantine, and movement of poultry and related products has been restricted. Officials plan to depopulate birds on the property to prevent further spread of the virus. It has been confirmed that these birds will not make their way into the food system.

The H5N1 HPAI virus, which is known to be highly contagious and often lethal to domestic birds, has been circulating in North America since late 2021. According to DATCP, the disease is caused by influenza type A virus, and its severity varies based on strain and species. Transmission can occur through contact with infected birds or their droppings, equipment, or through clothing worn by handlers.

DATCP advises livestock owners to adopt measures such as hand washing, equipment disinfection, and restriction of animal access to protect their stocks. A surveillance area is established, spanning 10 kilometers from infection points, to control movements and prevent further spread. Poultry owners are advised to keep their flocks indoors whenever possible.

The Wisconsin Department of Health Services (DHS) and Sheboygan County Public Health are observing farm workers exposed to HPAI for symptoms. Currently, the risk to the general public in Wisconsin is considered low. Farm workers and others closely interacting with livestock can obtain personal protective equipment through DHS.

Livestock owners in Wisconsin are reminded of the state law mandating registration of premises where animals are kept, which aids communication during outbreaks. Any signs of increased mortality or illness among domestic birds or dairy animals should be reported to DATCP.

The H5N1 virus has affected other species beyond birds since December 2021. Although no incidents have been reported in Wisconsin dairy herds, a specific genotype was detected in Texas cattle earlier this year. Efforts to monitor and prevent H5N1 spread continue, with resources available through DATCP.

For more details and resources on the impact of the H5N1 virus on poultry and dairy cattle in Wisconsin, the DATCP provides dedicated web pages addressing these issues.

For more information, contact Molly Mueller, the Public Information Officer, at (608) 910-1929 or via email at molly.mueller@wisconsin.gov.