The New World screwworm is a type of fly that can cause widespread devastation to livestock, wildlife and pets.

Given that history, the Maryland case is likely not first time an American has ever been diagnosed with it, said Max Scott, a North Carolina State University research who has stud

Just two months after reports warily noted that new world screwworms, flesh-eating parasites that are notorious for killing livestock, pets and other animals, hadn’t “made it back into the U.S. yet,” they have—in the form of the country’s first human infection from the current outbreak in Central America.