Mexican agricultural authorities have detected a new case of New World screwworm, a flesh-eating parasite, about 70 miles south of the U.S.-Mexico border near Laredo, Texas. Arizona's agricultural ...
A New World screwworm, a flesh-eating parasite, was discovered just south of the Texas border, raising alarms among cattle growers and ag officials. The fly lays eggs in cattle and other warm-blooded ...
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