New World Screwworm Resources Available
Science-Based Information and Extension Resources for Preparedness and Response
The New World Screwworm (Cochliomyia hominivorax) is a serious animal health threat affecting livestock, wildlife, pets, and, in rare cases, humans. The larvae feed on living tissue, causing severe wounds that require prompt treatment and reporting. In June 2026, screwworm was discovered in cattle in Texas.
As concerns about New World Screwworm (NWS) continue to evolve, the Extension Disaster Education Network (EDEN) is committed to providing trusted, research-based information to help Extension professionals, agricultural producers, veterinarians, emergency managers, and communities prepare for and respond to this emerging issue.
This page serves as a centralized hub for educational materials, government guidance, and Extension resources on NWS. EDEN will continue updating this page as new information becomes available.
Official Government Resources
USDA APHIS – Screwworm.gov
USDA’s official New World Screwworm information portal provides current status updates, response efforts, reporting guidance, fact sheets, and resources for producers, animal health professionals, and the public.
Visit:
Screwworm.gov
USDA APHIS New World Screwworm Factsheet
Learn how to identify New World Screwworm, understand its impacts, recognize signs of infestation, and know what actions to take if you suspect a case.
Download the factsheet:
New World Screwworm Factsheet (PDF)
Extension and EDEN Resources
Texas A&M AgriLife Extension – New World Screwworm Resource Hub
University of Arizona – Preparing Livestock Producers for New World Screwworm Re-emergence in the United States
EDEN Webinar – Understanding and Preparing for Potential Animal and Human Risks Associated with New World Screwworm
EDEN Webinar – One Health Issues Take Wing
