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.

First human case of a deadly flesh-eating parasite detected in US. Here's what to know about new world screwworm, what it looks like and symptoms.