To the editor,

The confirmation of the first case of Highly Pathogenic Avian Influenza (HPAI) in a Wisconsin dairy herd in Dodge County is an important public-health development that merits careful, informed attention rather than alarm.

Public-health protection depends on early detection, transparent reporting, and coordination between animal-health and human-health agencies. This farm was identified through routine National Milk Testing Strategy screening, not the surveillance required for moving cattle across state lines. The affected farm has been quarantined, and any cattle showing signs of illness are being separated for treatment.

Wisconsin’s dairy industry is a cornerstone of our state’s economy and identity. While HPAI has been widely associated with poultry and wild birds, its detection in a dairy herd underscores how interconnected animal agriculture and wildlife truly are. This case demonstrates that Wisconsin’s surveillance and reporting systems are functioning as they should. Identifying infections early in animals is one of the most effective ways to reduce potential risk to people and to the broader food system.

It is equally important to emphasize that Wisconsin farmers take animal health and biosecurity seriously. Dairy producers routinely work with veterinarians and follow strict protocols to protect their herds, employees, and the food supply. Early detection and swift response are signs that these systems are working as intended. At this time, public-health authorities continue to emphasize that the risk to the general public remains low. Milk sold commercially is pasteurized, which effectively inactivates influenza viruses, and there is ongoing monitoring of farm workers who may have close contact with animals. These measures reflect lessons learned from previous zoonotic disease events and are essential to preventing wider spread.

Clear communication is critical. Misinformation and speculation can undermine trust and distract from practical steps that truly protect public health—such as biosecurity, worker education, and continued disease monitoring. Supporting farmers with clear guidance and resources also supports the health of rural communities and consumers alike.

This event is a reminder that human, animal, and environmental health are closely linked. Addressing emerging diseases requires a coordinated “One Health” approach grounded in science, transparency, and public cooperation. Wisconsin is well-positioned to respond effectively by continuing to invest in these systems and by keeping the public accurately informed.

Wisconsin agriculture has faced challenges before and has always met them through cooperation, vigilance, and resilience. With the same approach, our state can respond effectively to this emerging issue while maintaining confidence in the safety and strength of our dairy industry.

Dr. Frank F. During

Pierce Veterinary Clinic

Ellsworth