In the last 30 days, the U.S. Department of Agriculture has confirmed highly pathogenic avian influenza (HPAI), or H5N1, in 10 cases in poultry in two states and 22 cases in livestock in two states.
To date, there have been no H5N1 detections in livestock in Wisconsin. Access the list of recent poultry detections in Wisconsin: https://datcp.wi.gov/Pages/Programs_Services/HPAIWisconsin.aspx
With fairs, shows, and dairy breakfasts underway, it’s important to emphasize biosecurity, the agency emphasizes.
- Enhance biosecurity measures and monitor disease in your herds and flocks: https://datcp.wi.gov/Pages/Programs_Services/BasicBiosecurity.aspx
- Report flocks and herds with unexplained symptoms immediately. Use this link for reporting animal diseases: https://datcp.wi.gov/Pages/Programs_Services/AnimalDiseases.aspx
- To report sick, dead, or injured wildlife, contact Wisconsin DNR at (608) 267-0866.
- Lactating dairy cattle must test negative for Influenza A virus at a National Animal Health Laboratory Network (NAHLN) lab before interstate movement: https://www.aphis.usda.gov/sites/default/files/aphis-requirements-hpai-livestock-eng-sp.pdf
- Wisconsin Cattle Testing Order: Lactating dairy cattle must test negative for Influenza A virus before moving to fairs or exhibitions: https://datcp.wi.gov/Documents2/HPAIinCattleFAQ.pdf
What If H5N1 Is Confirmed On My Dairy?
DATCP has created a resource document in case of a detection of H5N1 on a dairy farm. The document is intended to serve as a general reference for industry, but individual needs and response actions may differ for H5N1 detections depending on the operation and specific circumstances. Access the H5N1 Protocol: https://datcp.wi.gov/Documents2/H5N1CattleDetectionProtocol.pdf
National Milk Testing Strategy
On May 19, DATCP announced that Wisconsin would soon begin testing as part of the USDA Animal and Plant Health Inspection Service National Milk Testing Strategy. With the help from industry partners, Wisconsin has begun sampling milk at the farm level with the goal of testing each farm approximately every month.
In the first week of testing, from May 25-31, 656 samples were taken and tested as part of the NMTS. H5N1 was not detected in any of the samples.
Access the updated milk testing numbers on DATCP’s website: https://datcp.wi.gov/Pages/Programs_Services/AvianInfluenzaCattle.aspx


