• Title/Summary/Keyword: Louse

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Negligible Egg Positive Rate of Enterobius vermicularis and No Detection of Head Lice among Orphanage Children in Busan and Ulsan, Korea (2014)

  • Kim, Dong-Hee;Son, Hyun-Mi;Lee, Sang Hwa;Park, Mi Kyung;Kang, Shin Ae;Park, Sang Kyun;Choi, Jun-Ho;Park, Jung Ha;Yu, Hak-Sun
    • Parasites, Hosts and Diseases
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    • v.53 no.4
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    • pp.497-499
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    • 2015
  • To determine whether pinworm infections and head lice infestations spread among children in orphanages, 117 children from 4 orphanages in Busan-si and Ulsan-si, Korea, were examined for enterobiasis and head lice infestation between January and February 2014. The overall rate of Enterobius vermicularis egg positivity was 0.85%, whereas none of the children had head lice infestations. The rate of pinworm infection was much lower among the orphanage children compared to the rates observed in previous studies among kindergarten and primary school students. Moreover, the risk factors for enterobiasis were less frequent among these subjects than previously reported. The personal hygiene and health of the orphanage children were supervised by a regular, employed nurse through a health education program. In conclusion, pinworm infection was efficiently controlled among the children in orphanages, and this might be related to good personal hygiene practices in Korea.

Chewing Lice of Swan Geese (Anser cygnoides): New Host-Parasite Associations

  • Choi, Chang-Yong;Takekawa, John Y.;Prosser, Diann J.;Smith, Lacy M.;Ely, Craig R.;Fox, Anthony D.;Cao, Lei;Wang, Xin;Batbayar, Nyambayar;Natsagdorj, Tseveenmayadag;Xiao, Xiangming
    • Parasites, Hosts and Diseases
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    • v.54 no.5
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    • pp.685-691
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    • 2016
  • Chewing lice (Phthiraptera) that parasitize the globally threatened swan goose Anser cygnoides have been long recognized since the early 19th century, but those records were probably biased towards sampling of captive or domestic geese due to the small population size and limited distribution of its wild hosts. To better understand the lice species parasitizing swan geese that are endemic to East Asia, we collected chewing lice from 14 wild geese caught at 3 lakes in northeastern Mongolia. The lice were morphologically identified as 16 Trinoton anserinum (Fabricius, 1805), 11 Ornithobius domesticus Arnold, 2005, and 1 Anaticola anseris (Linnaeus, 1758). These species are known from other geese and swans, but all of them were new to the swan goose. This result also indicates no overlap in lice species between older records and our findings from wild birds. Thus, ectoparasites collected from domestic or captive animals may provide biased information on the occurrence, prevalence, host selection, and host-ectoparasite interactions from those on wild hosts.

A Study on the Husband and Wife Epic Test (부부서사진단도구를 위한 구비설화와 부부서사의 진단 요소)

Prevalence and Alternative Treatment of Head-Lice Infestation in Rural Thailand: A Community-Based Study

  • Singhasivanon, On-uma;Lawpoolsri, Saranath;Mungthin, Mathirut;Yimsamran, Surapon;Soonthornworasiri, Ngamphol;Krudsood, Srivicha
    • Parasites, Hosts and Diseases
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    • v.57 no.5
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    • pp.499-504
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    • 2019
  • Head-lice infestation, pediculosis capitis, remains a public-health burden in many countries. The widely used first-line pediculicides and alternative treatments are often too costly for use in poor socio-economic settings. Ivermectin has been considered an alternate treatment for field practice. This study was composed of 2 parts, a cross-sectional survey and an intervention study. The main objectives were to determine the prevalence and potential factors associated with head-lice infestation, and to evaluate the effectiveness and safety of oral ivermectin administration. A community-based cross-sectional survey was conducted among 890 villagers in rural areas along Thai-Myanmar border. Females with infestations were eligible for the intervention study, and 181 participated in the intervention study. A post-treatment survey was conducted to assess acceptance of ivermectin as a treatment choice. Data analysis used descriptive statistics and a generalized-estimation-equation model adjusted for cluster effect. The study revealed the prevalence of head-lice infestation was 50% among females and only 3% among males. Age stratification showed a high prevalence among females aged <20 years, and among 50% of female school-children. The prevalence was persistent among those with a history of infestation. The major risk factors were residing in a setting with other infected cases, and sharing a hair comb. The study also confirmed that ivermectin was safe and effective for field-based practice. It was considered a preferable treatment option. In conclusion, behavior-change communication should be implemented to reduce the observed high prevalence of head-lice infestation. Ivermectin may be an alternative choice for head-lice treatment, especially in remote areas.