NEW: USDA warns of flesh-eating screwworm detected within 31 miles of the U.S.-Mexico border.

NEW: USDA warns of flesh-eating screwworm detected within 31 miles of the U.S.-Mexico border.

NEW: USDA warns of flesh-eating screwworm detected within 31 miles of the U.S.-Mexico border.

🚨🇺🇸 A flesh-eating parasite that burrows through living animals has been found just 31 miles from the U.S. border... The USDA confirmed today that the New World Screwworm turned up in a sheep in Mexico's Coahuila state, the closest it's come during this outbreak. Females lay eggs in open wound