U.S. and Mexican are breeding sterile New World Screwworm flies to stop a flesh-eating parasite from spreading to Texas
With Mexican cattle again barred this month from entry to the United States over fears of spreading a flesh-eating parasite, ranchers and veterinarians in Mexico hundreds of miles from the border are fighting what has U.S. agricultural authorities so on edge. In the southern state of Chiapas, which borders Guatemala, the New World screwworm fly’s rapid spread … Read more
