title: Mass treatment of head louse infestation with Sumithrin powder in primary schools in Korea.
abstract: A mass treatment of head louse infestation with Sumithrin powder (0.4% phenothrin) in primary school children was implemented during the period of September 1991-May 1992. The infestation rate of total 2,515 children was 38.6% in average (21.2% in boys and 57.2% in girls). The reduction rate of head louse infestation was 93.4% with a single treatment and 94.8% with double consecutive treatments with about 10 days interval, which indicated that a single treatment would be recommended for the mass treatment in the community. Long term follow-up after Sumithrin powder application for head louse control in a primary school showed that the infestation rate dropped from 33.1% before treatment to 5.4% by seven months after treatment, giving a 83.4% reduction rate.
authors.affiliation: Institute of Tropical Medicine, Yonsei University, Seoul, Korea.
authors.forename: H I
authors.initials: HI
authors.lastname: Ree
authors.forename: T S
authors.initials: TS
authors.lastname: Yong
authors.forename: H J
authors.initials: HJ
authors.lastname: Shin
authors.forename: C O
authors.initials: CO
authors.lastname: Shin
authors.forename: I Y
authors.initials: IY
authors.lastname: Lee
authors.forename: S A
authors.initials: SA
authors.lastname: Seo
authors.forename: J H
authors.initials: JH
authors.lastname: Seo
authors.forename: J K
authors.initials: JK
authors.lastname: Chang
authors.forename: D H
authors.initials: DH
authors.lastname: Lee
authors.forename: K I
authors.initials: KI
authors.lastname: Im
mesh_terms: D000367:Age Factors; D002648:Child; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D007723:Korea / Q000453:epidemiology; D010373:Lice Infestations / Q000188:drug therapy / Q000453:epidemiology*; D008297:Male; D011208:Powders; D011722:Pyrethrins / Q000008:administration & dosage / Q000627:therapeutic use*; D012536:Scalp Dermatoses / Q000188:drug therapy / Q000453:epidemiology*
chemical_list: D011208:Powders; D011722:Pyrethrins; C006166:phenothrin