After a decades-long hiatus, new world screwworm populations have surged in Central America and Mexico — and are inching northward.

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 ...

The first human case of a deadly, flesh-eating parasite called “new world screwworm” has been detected in the United States, according to the Department of Health and Human Services. According to ...

Earlier this week, the Department of Health and Human Services (HHS) confirmed the first human case of a flesh-eating parasite in the U.S. The patient, a Maryland resident, had recently returned from ...

Packs of flesh-eating New World screwworms may soon swarm the United States, but Texas has a plan to stop them. The big picture: The life-threatening maggots that prey on the open wounds of mammals ...