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Bird Flu hits dairy herds in North Carolina

By Farms.com

North Carolina has identified highly pathogenic avian influenza in a dairy herd, becoming the seventh state to report such an outbreak in cattle. The positive test prompted immediate action, with movement restrictions now in place for cattle from certain states to prevent further spread.

The infection was confirmed through tests conducted by the National Veterinary Services Laboratory, part of the U.S. Department of Agriculture, which has noted over 20 affected herds nationwide since March. The disease, now termed "Bovine Influenza A Virus" by industry experts, aims to reassure the public about the safety of dairy and beef despite the unusual occurrence of bird flu in cattle.

Researchers are exploring several theories regarding the virus's introduction into dairy herds, including possible contamination from farm equipment or poultry litter used as fertilizer. These investigations are crucial as the virus has already shown the ability to jump from animals to humans, evidenced by a Texas farmworker contracting the virus.

With enhanced biosecurity measures in place, the Centers for Disease Control and Prevention continues to stress the low risk to the public but recommends protective measures for those in direct contact with infected animals.

As the situation develops, health officials and agricultural leaders are closely monitoring the virus's behavior and impact on both animal health and industry operations. The dairy farms are treating infected animals, focusing on recovery and containment rather than herd culling.


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PRRS Eradication Strategies - Dr. DeBuse and Dr. Tousignant

Video: PRRS Eradication Strategies - Dr. DeBuse and Dr. Tousignant


In this episode of The Swine it Podcast Show, Dr. Neil DeBuse from Kalmbach Feeds and Dr. Steve Tousignant from Vaxxinova US discuss PRRS management strategies, recombination risks, whole genome sequencing, and the role of autogenous immunization programs in swine systems. They highlight practical approaches to improving immunity, reducing outbreaks, and advancing PRRS control across production systems. Listen now on all major platforms!

"Being PRRS negative sooner is a real key for eradication because every additional positive week increases production losses and viral exposure risks." - Dr. Neil DeBuse

Meet the guest: Dr. Neil DeBuse is a veterinarian at Kalmbach Feeds with more than 30 years of experience in swine health and production. His work focuses on PRRS control, biosecurity, immunity, and improving production stability across commercial swine systems in the United States and internationally.

Dr. Steve Tousignant is Director of the Swine Business Unit and Technical Services Veterinarian at Vaxxinova US, with a DVM and PhD from the University of Minnesota. His experience combines epidemiology, technical services, and practical immunization strategies designed to support consistent herd performance and long-term production stability. Don’t miss the chance to be part of the Swine Inner Circle!