Definition:

Myiasis is a parasitic infestation of vital tissue of the skin and mucous membranes by dipterous larvae. Human myiasis is a rare clinic condition but more prevalent in humid tropical and subtropical regions. Myiasis may be classified into three types: (i) primary myiasis in which the larva invades healthy tissue of the host, (ii) secondary myiasis where the adult female is attracted to and lays its eggs on wounded skin, and (iii) accidental myiasis caused by ingestion of contaminated food. Among many species of Diptera that cause larval infection in humans, Dermatobia hominis, the human botfly, is responsible for the painful, boil-like lesion of furuncular myiasis.