Background: Increasing in the prevalence of pediculosis among school students and upward trend of pesticide marketing with evidence of resistance to them, indicate the possibility of lice resistance. Objective: To compare 3 drug formulations including: Lindan shampoo 1%, permethrin shampoo 1% and Copex powder 0.5% in the treatment of head lice infestation. Patients and Methods: Ninety stu...

The speciÞc status of the head and body lice of humans has been debated formore than 200 yr. To clarify the speciÞc status of head and body lice, we sequenced 524 base pairs (bp) of the cytochrome oxidase I (COI) gene of 28 head and 28 body lice from nine countries. Ten haplotypes that differed by 1Ð5 bp at 11 nucleotide positions were identiÞed. A phylogeny of these sequences indicates that th...

OBJECTIVES To determine whether regular use of a spray containing 1,2-octanediol 1%, which has been shown to inhibit survival of head lice, is able to work as a preventive against establishment of new infestations. SETTING Randomised, double-blind, cross-over, community study in Cambridgeshire, UK. PARTICIPANTS 63 male and female schoolchildren aged 4-16 years judged to have a high risk of ...

The lice (Insecta: Phthiraptera) are permanent obligatory ectoparasite of a diverse selection of birds and mammals with a worldwide distribution. This study provides information on the lice species most commonly associated with peacock in Sistan, southeast Iran. There is no previous described study on lice infestation of peacock in Iran. For this aim, Peacock were examined carefully for chewing...

INTRODUCTION Head lice can only be diagnosed by finding live lice, as eggs take 7 days to hatch and may appear viable for weeks after death of the egg. Infestation may be more likely in school children, with risks increased in children with more siblings, longer hair, and of lower socioeconomic group. METHODS AND OUTCOMES We conducted a systematic review and aimed to answer the following clin...

Head lice, Pediculis capitis De Geer, populations were investigated for permethrin and malathion resistance after initial establishment of a discriminating dose of topical application bioassay with body lice, Pediculus humanus L. For both insecticides, approximately 2 times the lethal dose (LD)95 at 4 h was selected, 2 ng of permethrin and 100 ng of malathion per head louse, respectively. Head ...

BACKGROUND Genetic analyses of human lice have shown that the current taxonomic classification of head lice (Pediculus humanus capitis) and body lice (Pediculus humanus humanus) does not reflect their phylogenetic organization. Three phylotypes of head lice A, B and C exist but body lice have been observed only in phylotype A. Head and body lice have different behaviours and only the latter hav...

Background and aims: Pediculosis is one of the most common parasitic diseases that affect a wide range of age groups. The prevention of head lice infections promotes the physical and mental health of people in the community. Thus, the aim of this study was to investigate the prevalence of head lice infections and the factors affecting them in those who referred to health centers in Geras...