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 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 United States is halting imports of livestock from Mexico to protect U.S. livestock from a flesh-eating parasite called the New World Screwworm. The New World Screwworm, or the NWS for short, is a ...

The United States has suspended all animal imports from Mexico due to a parasitic fly that can produce flesh-eating maggots. New World screwworms are the cause of the indefinite suspension of animal ...

The USDA plans to open fly breeding and distribution centers to stop the spread of the screwworm fly. Sterile male flies will be released to curb wild breeding and reduce the population. The pest can ...

The U.S. government is combating a potential invasion of flesh-eating New World screwworm maggots with a multimillion-dollar plan Getty The U.S. government is combating a potential invasion of ...