Update on Highly Pathogenic Avian Influenza (H5N1)
In the last 30 days, the U.S. Department of Agriculture (USDA) has confirmed highly pathogenic avian influenza (HPAI), or H5N1, in:
- 1 case in poultry in one state.
- 2 cases in livestock in two states.
Access the lists of detections in poultry and livestock.
To date, there have been no H5N1 detections in livestock in Wisconsin. Access the list of recent poultry detections in Wisconsin.
Wisconsin and the National Milk Testing Strategy
With help from industry partners, Wisconsin is sampling milk at the farm level for the USDA Animal and Plant Health Inspection Service (APHIS) National Milk Testing Strategy (NMTS) with the goal of testing each farm approximately every month. DATCP expects to continue to be able to utilize samples that are already collected for routine milk testing to streamline the testing process.
To date, more than 5,500 milk samples have been tested as part of the NMTS. This number represents nearly all licensed dairies in Wisconsin, with remaining verifications underway to ensure complete statewide reach.
H5N1 has not been detected in any of the samples. Access the updated July 6-12 milk testing numbers on DATCP's website. The DATCP H5N1 in Dairy Cattle website will continue to be updated weekly as the testing continues.
Biosecurity and Monitoring
It is important to emphasize biosecurity as fairs and shows continue through the summer:
H5N1 Protocol: What to Do if H5N1 Is Confirmed on Your Dairy Farm
DATCP 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: What To Do if H5N1 Is Confirmed on Your Dairy Farm document.
Human Health Precautions
Human cases of H5N1 have been reported following exposure to infected animals. Access the confirmed cases and exposure sources for human infections.
Wisconsin Department of Health Services (DHS) advises those working with animals to take precautions and wear PPE per CDC guidance. Request PPE from the Wisconsin DHS medical stockpile. According to the Centers for Disease Control and Prevention (CDC), the public health risk from H5N1 detections remains low.
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