• Parasites, Hosts and Diseases
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• v.47 no.4
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• pp.377-380
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• 2009

Growing patterns of pediculocidal drug resistance towards head louse laid the foundation for research in exploring novel anti-lice agents from medicinal plants. In the present study, various extracts of Pongamia pinnata leaves were tested against the head louse Pediculus humanus capitis. A filter paper diffusion method was conducted for determining the potential pediculocidal and ovicidal activity of chloroform, petroleum ether, methanol, and water extracts of P. pinnata leaves. The findings revealed that petroleum ether extracts possess excellent anti-lice activity with values ranging between 50.3% and 100% where as chloroform and methanol extracts showed moderate pediculocidal effects. The chloroform and methanol extracts were also successful in inhibiting nymph emergence and the petroleum ether extract was the most effective with a complete inhibition of emergence. Water extract was devoid of both pediculocidal and ovicidal activities. All the results were well comparable with benzoyl benzoate (25% w/v). These results showed the prospect of using P. pinnata leave extracts against P. humanus capitis in difficult situations of emergence of resistance to synthetic anti-lice agents.

• Clinical and Experimental Pediatrics
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• v.46 no.6
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• pp.523-527
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• 2003

• Parasites, Hosts and Diseases
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• v.44 no.1 s.137
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• pp.95-98
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• 2006

Scabies and pediculosis are ubiquitous, contagious, and debilitating parasitic dermatoses. The tendency of high prevalence of pediculosis and scabies among school and preschool age children has prompted us to conduct a head louse and scabies prevalence survey among preschool nursery children in our district. A school-based, crosssectional study was performed, with 1,134 children chosen for evaluation. All cases were evaluated by physical examination and a detailed, structured questionnaire. The infestation was found in 14 $(1.2\%)$ of 1,134 children; 9 $(0.8\%)$ with pediculosis capitis and 5 $(0.4\%)$ with scabies. We found that infestations were more frequent in children with mothers whose education levels were low. This indicates the necessity of an improvement in the economic and sociocultural status of the community and the promotion of hygiene concepts and practices in order to improve health of preschool age children.

• Korean Journal of Veterinary Research
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• v.24 no.2
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• pp.227-236
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• 1984

A migratory bird, the white stork, Ciconia boyciana was captured from a pond in the Cheju Island on the 18th of December in 1982. The morphological characteristics were described as seen in the binocular stereoscopic microscope and the further fine structures were observed by means of the scanning electron microscope (Model; ISI-DS-130). The bird was examined for the ectoparasites at the Cheju Provincial Veterinary Research Laboratory. Two kinds of specimens were collected from the head and body feathers. The specimens were sent to the Institute of Veterinary Research in Anyang for the classification and identification. The specimens preserved in 70% ethyl alcohol were examined and identified as the fowl head-louse, Cuclotogaster heterographus and the slender goose-louse, Anaticola anseris both classified into Family Philopteridae, Ischnocera, Order Mallophaga.

• Parasites, Hosts and Diseases
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• v.33 no.3
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• pp.243-244
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• 1995

The survey of the head louse infestation of primary school children in Inchon city was carried out in May 26-27, 1995. Total number of the children surveyed were 1, 530. Four (0.5%) out of 768 boys were infested with nits or adults/nymphs of lice and 72 (9.4%) out of 762 girls were positive with those of lice. The infestation rate of lice for girls was 19 times higher than that of boys.

• Parasites, Hosts and Diseases
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• v.31 no.1
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• pp.67-70
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• 1993

We tried to reveal the prevalence rates of the head louse infestation in school children in Kangwon-do, Korea in December 1990. A total of 912 children in flour primary schools was examined. The positive rate for adults and/or nits of Pediculus humonus capitis was 37.2%. One school was followed-up without specific intervention. There was no significant change of the prevalence rate 6 months after the first examination from 66.0% to 57.3%. We could see the persistent infestation rate if there was no intervention. We are emphasizing the significance of worm positive rate because it represents the potentiality of active transmission.

• Parasites, Hosts and Diseases
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• v.49 no.1
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• pp.95-98
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• 2011

Head louse infestation (HLI) is one of the most frequently occurring parasitic diseases in children. This study was conducted to investigate the socioeconomic and personal factors influencing HLI in the Republic of Korea. A total of 2,210 questionnaires about various factors related to HLI were obtained from children in 17 primary schools throughout the country. The rate of HLI was significantly lower in children who lived together with mother or in a family where both parents worked. In addition, HLI was lower in children whose fathers or mothers were public officers or teachers. However, HLI was higher in children who had small families and washed their hair less often. Education levels of parents and the number of children in family were not significant. Improvement of socioeconomic factors and personal hygiene will be helpful for reducing HLI.

• (The)Study of the Eastern Classic
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• no.34
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• pp.113-132
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• 2009

The present paper considers lice described in some premodern Korean proses, focused on the implications of lice and the literary strategies adopted by the writers in dealing with this unique subject matter. The works reviewed in this process are "A Story of the Louse and the Dog" by Lee Gyu-bo (Goryeo Dynasty), "The Old Man's Vindication of Lice" by Gwak Yeol (Early Joseon), "A Small Realization" by Yu Sin-hwan (Late Joseon) and "Miscellany" by Heo Jeon (Late Joseon). In these premodern essays, an allegory of lice was used to disclose various kinds of prejudices that people generally had: against things small (in "A Story of the Louse and the Dog"), against the old (in "The Old Man's Vindication of Lice"), against the dichotomous idea of right and wrong (in "A Small Realization") and against various aspects of life (in "Miscellany").

• Journal of agricultural medicine and community health
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• v.22 no.1
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• pp.43-48
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• 1997

To exam infestation rate and removal rate of head louse, we did delousing at 27 primary schools and 19 kindergartens established as an annex to the primary school in Namwon-shi, Jollabuk-do, Korea, from May to December 1995. Total of 3123 subjects were examined ed for the presence of head lice and nits The overall infestation rate was 9.6%, 9.5% in primary school children and 10.1% in kindergarten children. Among 299 infested children, 55 children evaluated by live nit had louse, and 79 children had dead nit. According to distractive research, Ibaek-myon and Songdong-myon revealed high infestation rate of 27.3%, and 21.7% respectively. Infestation rate of primary school was 0 to 50.9%, kindergarten was 0 to 100%. Infestation rate of female children were higher than male in all grades. When we executed one time treatment with PARA$^{(R)}$ aerosol(bioallethrin with piperonyl butoxide), treatment rate of 65.1% was examined, 82.8% was examined in three times of treatment. We concluded that 3 times of treatments interval of 14 days were more effective than one time in the case of treatment of only infested children. In order to prevent the spread of head lice, education of school hygiene and suitable delousing attempts should be executed in the present situation.

• Proceedings of the Korean Society of Applied Entomolohy Conference
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• 2002.05a
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• pp.78-78
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• 2002