Flesh-eating New World screwworm found in Texas calf, USDA says
Summary
The U.S. Department of Agriculture (USDA) found a flesh-eating New World screwworm larva in a calf in Zavala County, Texas. The USDA is taking steps to stop the parasite by setting up a 12-mile quarantine zone, increasing traps, and working with Texas animal health officials.Key Facts
- The screwworm was found in a 3-week-old calf's umbilical area in Texas.
- The USDA created a 12-mile "infested zone" around the location to control the spread.
- Traps for screwworms are being increased along the U.S.-Mexico border.
- An Incident Command Team was formed with the Texas Animal Health Commission to manage the response.
- New World screwworms lay eggs in open wounds and their larvae eat living flesh of animals.
- At least 26,216 screwworm cases are reported in Mexico, with about 2,700 still active.
- The parasite generally affects livestock but can rarely infect humans.
- The USDA previously reported a screwworm near the U.S. border in Mexico about 25 miles away.
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