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Pork producers address USDA's New World screwworm response

The National Pork Producers Council submitted comments on the USDA's draft response plan for a New World screwworm detection in the United States. NPPC's feedback addressed areas of the response including movement controls and movements to slaughter, treatment and physical examinations, among others.

NWS is a flesh-eating parasite from female flies that lay eggs in wounds on warm-blooded animals, including pigs and people. According to USDA, animals that recently have given birth, suffered an injury, or had a surgical procedure such as tail docking or branding are most vulnerable. Even tick bites can attract NWS flies.

The disease has moved from South America through Central America and into Mexico over the past few years, with a case recently being identified in cattle a few hundred miles south of the U.S.-Mexico border. It is endemic in Cuba, the Dominican Republic, Haiti and some South American countries.

In May, USDA closed the U.S. southern border to imports of cattle from Mexico to prevent NWS from entering the United States. USDA unveiled plans in August that included building a sterile fly production facility in south Texas, investing in new technologies to eradicate NWS, and increasing surveillance at U.S. ports of entry.

NPPC has been working with USDA, FDA, the American Association of Swine Veterinarians, the Swine Health Information Center and the National Pork Board to understand knowledge gaps and opportunities to better prepare for this pest.

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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!