Human myiasis caused by Phormia regina in Pennsylvania.

A case of human myiasis caused by the black blowfly, P. regina, has been presented. Although various reports have documented the therapeutic effects of maggot infestation, infection and mortality by gas-forming anaerobic organisms also have been reported. The removal of maggots from a wound can be accomplished using various methods. The authors successfully used topical application of dichlorotetrafluoroethane.