- USDA releases updated New World Screwworm (NWS) Response Playbook for rapid outbreak response
- Focus on federal, state, tribal, and industry coordination to prevent U.S. spread
- Includes protocols for surveillance, containment, treatment, and business continuity
- Expanded guidance on animal movement, quarantine zones, and pest control measures
- New updates address wildlife management and surveillance strategies
- Developed with input from veterinarians, livestock producers, and government partners
- Supports broader USDA strategy to prevent northward spread from endemic regions
The U.S. Department of Agriculture’s Animal and Plant Health Inspection Service (APHIS) has released an updated New World Screwworm (NWS) Response Playbook, reinforcing national preparedness efforts against a potential reintroduction of the destructive livestock pest.
Coordinated National Response Framework
The playbook provides a comprehensive, science-based framework for responding to a potential NWS detection in the United States. It outlines how federal, state, tribal, and local agencies can coordinate efforts to contain outbreaks, manage infected animals, and prevent establishment of the pest in new regions.
Key response components include surveillance systems, pest control strategies, animal treatment protocols, and measures to maintain continuity of agricultural business operations during an outbreak.
Expanded Guidance for Field Implementation
The updated version incorporates significant enhancements based on stakeholder feedback. These include clearer definitions of outbreak phases, quarantine zones, and response terminology, as well as expanded guidance on animal movement and regulatory authorities.
APHIS also strengthened protocols for the use of antiparasitic treatments and pesticides, along with detailed recommendations for surveillance and response actions in both livestock and wildlife populations.
Increased Focus on Wildlife and Surveillance
Recognizing the role of wildlife in disease spread, the playbook now includes more detailed strategies for managing NWS risks in free-ranging and farmed wildlife. This includes clarified agency roles and improved surveillance guidance to detect and respond to infestations early.
Stakeholder-Driven Development
The updated playbook reflects input from a wide range of stakeholders, including state animal health officials, veterinary organizations, livestock and wildlife groups, and tribal partners. This collaborative approach ensures the guidance is practical and adaptable to real-world conditions.
Ongoing Preparedness Efforts
USDA emphasized that the playbook is part of a broader, proactive strategy to keep NWS out of the United States, including cross-border collaboration and ongoing surveillance efforts. The agency plans to continue refining the document as new data and field experience emerge.
Outlook
With the threat of New World screwworm reintroduction persisting, the updated playbook provides a critical tool for rapid, coordinated response—helping safeguard U.S. livestock, wildlife, and agricultural systems.
Information sourced from USDA APHIS press release.
