An Update on the 2026 New World Screwworm Threat
Haylie Pfeffer
June 25, 2026
Veterinarians share updates on NWS response efforts, horse movement, event biosecurity, and what horse owners should expect.
Learn more about new world screwworm (NWS) and how to protect your horse.
Veterinarians share updates on NWS response efforts, horse movement, event biosecurity, and what horse owners should expect.
This Texas A&M AgriLife Extension Service course is designed to help keep Texas livestock moving.
The AVMA mobilizes resources to support practitioners in NWS prevention, detection, treatment, and containment.
USDA confirmed a new case in a Texas calf and expanded response efforts while urging animal owners to report suspected infestations.
The USDA confirmed New World screwworm in a Texas calf, underscoring the importance of wound management, fly control, and early detection in horses and other animals.
Researchers have outlined key information on the New World screwworm fly, along with methods for recognizing, treating, and ultimately eradicating infestations.
As new world screwworm threatens horses and livestock again, experts urge vigilance, rapid reporting, and prevention to stop its return to the U.S.
Stay on top of the most recent Horse Health news with
