title: Resistance of head louse (Pediculus humanus capitis de Geer) to DDT in Malaysia.
abstract: A survey of 308,101 schoolchildren conducted in 10 of 11 states in Peninsular Malaysia revealed that 10.7% have Pediculus humanus capitis infestation. The results of treatment with 1%, 2% and 5% DDT in coconut oil in 374 cases reveal cure rates of 3.5%, 15.8% and 51.3%, respectively, suggesting that the head louse has probably developed resistance to this insecticide in Malaysia.
mesh_terms: D000293:Adolescent; D002648:Child; D003634:DDT / Q000627:therapeutic use*; D004351:Drug Resistance; D006801:Humans; D010373:Lice Infestations / Q000188:drug therapy* / Q000453:epidemiology; D008296:Malaysia; D010374:Pediculus
chemical_list: D003634:DDT