A Maryland resident who traveled to El Salvador has been diagnosed with New World screwworm — the first reported U.S. case tied to travel to a country with a current outbreak. Federal health officials acknowledged the infection in an emailed statement Monday.

The New World screwworm case is the first reported U.S. case​ tied to travel to a country with a current outbreak.

A rare human case of a flesh-eating parasite known as New World screwworm has been confirmed in a Maryland resident as the Trump administration is trying to prevent the resurgence of an insect largely eradicated from livestock decades ago.