H5N1 Bird Flu links for Wisconsin Farmers

Apr 10, 2025

Highly pathogenic avian influenza (HPAI) H5N1 is a virus that has traditionally affected birds. Recently, however, it has been confirmed in dairy cattle and detected in other species, including humans. This marks a significant and unprecedented development for the dairy industry.

The emergence of HPAI H5N1 in cattle highlights the urgent need for a One Health approach, which recognizes the close connections between human, animal, and environmental health. As the situation evolves, it’s critical to strengthen biosecurity practices, enhance surveillance efforts, and support research to better understand how the virus spreads and how to manage it.

Because this is a rapidly changing situation, we encourage dairy producers and industry professionals to stay informed. For the most up-to-date and reliable information, follow guidance from the Wisconsin Department of Agriculture, Trade and Consumer Protection (DATCP), the Centers for Disease Control and Prevention (CDC), and the National Milk Producers Federation (NMPF).

Highly Pathogenic Avian Influenza (H5N1) in Dairy Cattle

Information from the State of Wisconsin Department of Agriculture, Trade and Consumer Protection (DATCP):

https://datcp.wi.gov/Pages/Programs_Services/AvianInfluenzaCattle.aspx

Avian Influenza (Bird Flu)

Information from the U.S. Centers for Disease Control and Prevention:

https://www.cdc.gov/bird-flu/

H5N1 in Dairy Cattle

Information from the the National Milk Producers Federation (NMPF):

https://www.nmpf.org/resources/hpai/

Video: Season 6, Episode 10: Defining Resiliency and the Research Driving Swine Health Forward

Genetic research and new technologies continue to influence the future of swine health and production efficiency. In this episode, we explore how research and technology are being used to support stronger, more resilient pigs, while also improving overall production outcomes. In this episode, we are joined by Dr. Jenelle Dunkelberger, geneticist with Topigs Norsvin, to discuss both routine and emerging strategies for improving piglet, pig, and sow livability. She outlines two primary approaches to enhancing resiliency: gene editing and traditional selective breeding. Continuing the resiliency conversation, we also hear from Dr. Lucina Galina, director of technical research projects at the Pig Improvement Company. She shares insights into ongoing gene-editing work focused on PRRS, detailing the pathway to success, regulatory and practical considerations, and the questions that still remain as the technology evolves. Together, these conversations provide a closer look at how research, genetics and innovation are shaping the future of swine health and livability.