Minnesota Partners With USDA to Enhance Dairy Cattle Virus Testing Protocols

September 11, 2025 | Board of Animal Health, Agencies, Boards, & Commissions, Executive, Minnesota


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Minnesota Partners With USDA to Enhance Dairy Cattle Virus Testing Protocols
In a recent meeting held by the Minnesota Board of Animal Health, officials gathered to discuss pressing issues affecting the state's livestock and wildlife health. The atmosphere was charged with urgency as they addressed the potential spread of the New World Screwworm, a parasite that poses a significant threat to both domestic animals and wildlife.

The meeting highlighted the ongoing monitoring efforts for this parasite, which has been detected in Mexico and poses a risk to Minnesota's cattle and deer populations. Officials noted that while there have been no confirmed cases in the U.S. yet, the closest detection remains alarmingly close—about 370 miles south of Texas. The board emphasized the importance of vigilance, particularly as migration patterns could increase exposure to the parasite.

In a proactive move, the board announced a partnership with the Department of Agriculture to streamline milk testing for dairy cattle. This initiative aims to reduce the testing frequency from monthly to every other month, contingent on the ongoing assessment of the situation. The goal is to alleviate pressure on laboratories while ensuring that all dairy cattle are still tested before milk shipment.

The meeting also touched on the concerning rise in West Nile virus cases among horses, with 11 reported cases and five fatalities in recent weeks. Officials reiterated the importance of vaccination and public awareness, as the virus poses a risk not only to horses but also to humans through mosquito bites.

Additionally, the board discussed the need for enhanced biosecurity measures and education for county fairs, which have seen a successful season but require ongoing oversight to prevent potential outbreaks. The board's commitment to genetic research funding for livestock was also a highlight, with 18 producers participating in a study aimed at understanding disease resistance.

As the meeting concluded, the board members expressed their determination to stay ahead of these health challenges, emphasizing collaboration with various stakeholders to protect Minnesota's agricultural and wildlife resources. The discussions underscored the critical role of the Board of Animal Health in safeguarding the state's animal health and public safety, as they navigate the complexities of emerging threats.

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