Screwworm Detected in Maryland Resident After Travel to Guatemala, Officials Say

Maryland health officials have confirmed the first U.S. case of a human infected with a screwworm, a rare but dangerous parasitic infestation. The patient, a Maryland resident, was diagnosed after returning from a trip to Guatemala, where the parasite is still present. This case has raised concerns among health experts, farmers, and federal agencies, as the United States has been free of screwworm since the 1960s.