title: Prevalence of nits and lice in samples of cut hair from floors of barbershops and beauty parlors in Belo Horizonte, Minas Gerais State, Brazil.
abstract: A louse survey based on samples of cut hair collected from floors of barbershops and beauty parlors was conducted in Belo Horizonte, Minas Gerais State, Brazil, from October 1984 to April 1985, as an alternative way to determine the prevalence of pediculosis capitis in the population. Of 475 samples examined for nits, nymphs, or adults of Pediculus capitis, 140 were infested (29.5%). A total of 58 lice and 3,553 nits were found in 33,632.9 g of hair collected, giving a ratio of 0.10 nit/g. Almost 29% of the nits were viable and capable of being transmitted after hatching. There was significant difference among the infestation rates by socioeconomic levels, and samples from barbershops with male customers were the most infested. Based upon the number of haircuts in each sample, we estimated that 5 or 6% of the population might be infested by this species.
authors.affiliation: Departamento de Parasitologia, Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brasil.
authors.forename: P M
authors.initials: PM
authors.lastname: Linardi
authors.forename: M
authors.initials: M
authors.lastname: De Maria
authors.forename: J R
authors.initials: JR
authors.lastname: Botelho
authors.forename: H C
authors.initials: HC
authors.lastname: Cunha
authors.forename: J B
authors.initials: JB
authors.lastname: Ferreira
mesh_terms: D000328:Adult; D000818:Animals; D001461:Barbering; D002648:Child; D003365:Costs and Cost Analysis; D003430:Cross-Sectional Studies; D005260:Female; D006197:Hair; D006801:Humans; D010373:Lice Infestations / Q000453:epidemiology*; D008297:Male; D010374:Pediculus / Q000502:physiology*; D012959:Socioeconomic Factors