ナイジェリア, プラトー州ジャラワ渓谷におけるオンコセルカ症の流行状況

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  • NWOKE BERTRAM E. B.
    Medical Entomology & Parasitology Unit, School of Biological Science, Imo State University
  • ONWULIRI CELESTINE O. E.
    Department of Zoology, Faculty of Natural Science, University of Jos
  • SHIWAKU KUNINORI
    Department of Parasitology, Aichi Medical University Department of Environmental Medicine, Shimane Medical University
  • 塩飽 邦憲
    ナイジェリア・トリパノソーマ研究所
  • 多田 功
    熊本大学医学部寄生虫病学教室
  • 高橋 弘
    国際協力事業団・ジョス大学医学部

書誌事項

タイトル別名
  • Endemic onchocerciasis on the Jarawa valley area of Plateau state, Nigeria.

説明

Clinical and parasitological survey on onchocerciasis was carried out in the Jarawa Valley area of Nigeria. A total of 1, 821 inhabitants from six villages were examined and 908 (49.9%) were positive for microfilaria of Onchocerca volvulus. Onchocercal infection increased with age, reaching the highest level in adults over 40 years old. Pruritus was the most frequent lesion, followed by skin depigmentaion, visual impairment, nodule, hanging groin and elephantiasis. Leopard skin occurred in various parts of the body including areas not exposed to blackfly-bites. Lymphatic manifestation, hanging groin and elephantiasis, occurred mostly in old male subjects. The adult had the highest prevalence of nodules mainly in the pelvic regions. Skin biopsies taken from the iliac crest gave the highest frequency of positive skin snip.

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