A traveler returning from El Salvador has been confirmed with the first human case of the flesh-eating New World screwworm in the U.S. Health officials assure the risk to the public remains low, but the case raises concerns about the parasite's spread.
Texas ranchers are on high alert as the flesh-eating screwworm returns, threatening livestock health and the multi-billion-dollar hunting industry. With a shortage of skilled labor, ranchers fear they may be ill-prepared for the outbreak.