causes of myiasis
Myiasis is infection with the larval stage (maggots) of various flies. Flies in several genera may cause myiasis in humans. Dermatobia hominis is the primary human bot fly. Cochliomyia hominovorax is the primary screwworm fly in the New World and Chrysomya bezziana is the Old World screwworm. Cordylobia anthropophaga is known as the tumbu fly. Flies in the genera Cuterebra, Oestrus and Wohlfahrtia are animal parasites that also occasionally infect humans. You may have gotten an infection from accidentally ingesting larvae, from having an open wound or sore, or through your nose or ears. People can also be bitten by mosquitoes, ticks, or other flies that harbor fly larvae. In tropical areas, where the fly larva (maggot) infection is most likely to occur, some flies lay their eggs on drying clothes that are hung outside.
