ラオス国カムワン県における腸管寄生虫感染と公衆衛生活動 : タイ肝吸虫症対策を中心として

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Intestinal parasitic diseases seem to be prevalent among the inhabitants in Laos. In the surveys on intestinal parasite in 5 villages in Khammouane province, Laos, the authors demonstrated a high prevalence of about 80% or more. Opisthorchis viverrini was the commonest helminth found followed by Ascaris lumbricoides, hookworm and Trichuris trichiura. The high prevalence and high infection intensity of O. viverrini were surprisingly found not only in adult group but also in children under 5 years old. The abnormal hepatobihary findings were also frequently observed among the patients with opisthorchiasis by an ultrasonographic examination. Thus, O. uiverrini infection was considered to be a serious public health problem in the country because of its high prevalence even in children and also because of its serious pathogenicity. A community control program for opisthorchiasis was operated in 3 villages by means of mass examination and mass treatment with Praziquantel. The positive rate lowered after the mass treatment, however, recovered considerably within 6 months, indicating that the health education should be involved in the control program to prevent the reinfection after treatment. The health education to avoid the intestinal parasite infection is closely related with various improvement measures for environmental hygiene. Thus, it seems that mass parasite control can have a positive impact to community health development. Because intestinal parasite infection is a common endemic disease among human population in developing country and also because such a parasite control program does not require complex technology or much involvement of high cost and scarce manpower, the parasite control program can be operated as a regular sanitation program in many developing countries.
琉球医学会,Ryukyu Medical Associationの論文

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小林潤
琉球大・医・寄生虫

ラオス国カムワン県における腸管寄生虫感染と公衆衛生活動 : タイ肝吸虫症対策を中心として

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