A type of flesh-eating maggot is making a comeback — and it’s creeping toward the United States. The new world screwworm is a blowfly whose larvae burrow into animal wounds and gorge on living tissue.

The U.S. has blocked imports of live cattle, horses, and bison through southern border ports following the resurgence in Mexico of the New World Screwworm, a parasitic fly that infects animals and ...

A flesh-eating maggot that had been eradicated in the U.S. and parts of Central America is back and could potentially threaten Louisiana cattle, experts in the beef industry are warning. Due to the ...

A rare human case of a deadly parasite infestation has become the latest unsettling pathogen to make headlines in the United States. A New World Screwworm case was confirmed by the Centers for Disease ...