AVMA - American Veterinary Medical Association
09/22/2025 | News release | Distributed by Public on 09/22/2025 13:58
Officials call for veterinary vigilance as screwworm moves closer to US
Once eradicated from the U.S., the flesh-eating New World screwworm (NWS) has been detected less than 70 miles south of the U.S.-Mexico border.
On September 21, a new case of NWS in Sabinas Hidalgo, located in the state of Nuevo León, was detected by Mexico's National Service of Agro-Alimentary Health, Safety, and Quality (SENASICA).
This is now the northernmost detection of NWS during this outbreak. Sabinas Hidalgo is located near a major highway that runs from Monterrey, Nuevo Leon, to Laredo, Texas, which is one of the most heavily trafficked commercial thoroughfares in the world, according to the U.S. Department of Agriculture press release.
The northernmost New World screwworm (NWS) detection in Mexico is in Sabinas Hidalgo, located in the state of Nuevo León, less than 70 miles from Laredo, Texas (pictured), on the U.S.-Mexico border. The U.S. Department of Agriculture urges residents and veterinary professionals, especially along the Southern border, to check pets and livestock for signs of NWS.
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