What To Know

The U.S. Department of Agriculture (USDA) Animal and Plant Health Inspection Service (APHIS), Veterinary Services (VS) is temporarily suspending the importation of live animals originating from or transiting Mexico based on the confirmation of New World screwworm (NWS) in cattle. However, APHIS is working to establish and implement protocols for cattle that are free of NWS in order to resume trade across the border as safely and as quickly as possible.

NWS maggots can infest livestock and other warm-blooded animals, including people. They most often enter an animal through an open wound and feed on the animal’s living flesh.

In 1966, NWS was eradicated from the United States using sterile insect technique (SIT). The eradication of NWS in the United States cost over $750 million. Although the eradication of NWS was a significant investment, the potential losses from the pest are estimated to be much higher.

To report a suspected or confirmed case of New World screwworm to the Texas Animal Health Commission, call 1-800-550-8242. The hotline is available 24 hours a day, 7 days a week. You can also submit a written complaint using the TAHC Complaint Form.