Wisconsin Dairy Farms Initiate H5N1 Avian Flu Testingl
Wisconsin has initiated a mandatory milk testing program for avian flu virus H5N1 across its dairy farms. This measure aligns with the U.S. Department of Agriculture’s national surveillance strategy aimed at early virus detection while minimizing milk wastage.
The Wisconsin Department of Agriculture, Trade and Consumer Protection (DATCP) announced that milk samples would be collected during routine quality checks to ensure minimal disruption. The state-specific strategy enables faster identification and response compared to other states that conduct testing at processing plants.
With the capability to process approximately 1,250 samples per week, the Wisconsin Veterinary Diagnostic Laboratory plays a critical role in this effort. To date, over 6,000 tests have been conducted since April 2024, with no cases of H5N1 reported among the state’s dairy cows. Officials state that finding no virus for three consecutive months could allow for reduced testing frequency.
Industry groups, including Voice of Milk, endorse the state’s approach for its efficiency in safeguarding both the farm environment and consumer supply. Officials emphasize that pasteurized milk remains safe, reiterating the importance of the testing program for public health and farm safety.