The patient had recently returned to Maryland after traveling to El Salvador. The risk to public health in the U.S. is very low.

A human case of the flesh-eating New World Screwworm has been found in the United States, carried by a person who recently visited El Salvador. The patient had recently returned to Maryland from ...

Ranchers and health officials in some Southern states are concerned over the rising rates of screwworm infections outside the U.S.

The patient has since recovered from the painful parasite, and Maryland health officials confirmed that there’s no sign of ...

A U.S. patient was diagnosed with New World screwworm, which is rare in humans. Are North Carolina residents safe? An outbreak of NWS is underway in Central America according to the U.S. Department of ...

The first human case of New World screwworm has been confirmed in the United States. Health officials say the case was reported in Maryland, and confirmed earlier this month. The patient had traveled ...

New World screwworm larva, like the one pictured, will hatch and feed on the flesh of living animals, typically cattle. Cases in humans are rare but can be fatal. (AP | USDA Agricultural Research ...

California health officials warn that the New World Screwworm could arrive in California from an infested traveler or animal, ...

The U.S. has confirmed its first human case of the New World screwworm, a flesh-eating parasite whose northward creep from South America has put the country's cattle industry on high alert in recent ...