Epidemiologic role of skin hypersensitivity in hookworm disease.
D000367:Age Factors; D002648:Child; D002675:Child, Preschool; D004812:Epidemiologic Methods; D005243:Feces; D005260:Female; D006725:Hookworm Infections / Q000175:diagnosis / Q000453:epidemiology*; D006801:Humans; D008297:Male; D009331:Necator / Q000302:isolation & purification; D012423:Rural Health; D012424:Rural Population; D012494:Sampling Studies; D012737:Sex Factors; D012882:Skin Tests; D014687:Venezuela