• Parasites, Hosts and Diseases
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• v.30 no.1
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• pp.49-52
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• 1992

After evaluation of presence of nits and/or lice, PARATM aerosol (bioallethrin with piperonyl butoxide) was applied to 97 women and 43 girls, regardless of the results of their infestation, living at 2 separate institutions. Twelve days after the first treatment the second treatment was carried out and the presence of head lice was examined for the evaluation of treatment effect. Among total 140 subjects, 98(70,0%) were nit positive and 85(60.7%) were louse positive. The infestation rates of girls by nit(86.0%) and louse(86.0%) were higher than those of women, nit 62.9% and louse 49.5%(p<0.01). Also the detection rate of lice among nit positive subjects was higher in girls(100%) than in women(78.7%). On the second evaluation 12 days after treatment, 36(97.3%) out of 37 girls and 46(95.8%) out of 48 women were found louse-free. There was no difference in the treatment efficacy between the women and girls.