Factors related to transmission of and infection with Schistosoma mansoni in a village in the South-eastern Region of Brazil
Factors related to transmission of and infection with Schistosoma mansoni in a village in the South-eastern Region of Brazil
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DOI：
10.1590/s0074-02762010000400037
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发表时间：
2010-07-01
期刊：
影响因子：
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通讯作者：
Schall, Virginia Torres
中科院分区：
文献类型：
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作者：
Enk, Martin Johannes;Lima, Anna Carolina Lustosa;Schall, Virginia Torres
本研究旨在探讨曼氏血吸虫感染及传播的相关因素。根据粪便检查的两个加藤-卡茨涂片的一个单一的样本，血吸虫病和土壤蠕虫的患病率建立。在多变量分析中，对人口统计学、社会经济学和水接触模式变量进行了检验，以确定与感染的关系强度。男性的感染风险比女性高3.39倍。10-19岁和20-30岁年龄组的感染风险分别是0-10岁对照年龄组的7.1倍和7.5倍。从事休闲活动的人比没有这些活动的人的风险高1.96倍。软体动物学调查确定了光滑双脐螺（Biomphalaria glabrata）、Straminea双脐螺（Biomphalaria straminea）和Tenagophila双脐螺（Biomphalaria tenagophila）。两个B的样本。光滑型（0.53%）为S. mansoni在当地观察到的社会经济改善表明对血吸虫病感染的保护和预防作用，这需要进一步的调查与纵向和更详细的研究设计。考虑到我们的研究结果，综合控制计划的建议应该基于两个支柱：一个是横向的，涉及社会赋权和健康教育，另一个是纵向的，提供治疗和基础设施的改善。
In this transversal study, factors related to infection with and transmission of Schistosoma mansoni were explored. Based on stool examinations of two Kato-Katz smears of a single sample, the prevalences of schistosomiasis and geohelminths were established. In a multivariable analysis, sets of demographic, socio-economic and water contact pattern variables were tested for strength of relation with infection. Males presented a 3.39-times higher risk for infection than females. The age groups between 10-19 years and 20-30 years showed risks of infection 7.1- and 7.5-times higher, respectively, than the control age group between 0-10 years. Individuals practicing leisure activities had a 1.96-times higher risk than those without these activities. The malacological survey identified snails of the species Biomphalaria glabrata, Biomphalaria straminea and Biomphalaria tenagophila. Two exemplars of B. glabrata (0.53%) proved positive for S. mansoni. The socio-economic improvements observed in the locality suggest a protective and preventive effect towards infection with schistosomiasis, which requires further investigation with a longitudinal and more detailed study design. Considering our findings, a proposal for an integrated control program should be based on two pillars: one horizontal, which involves social empowerment and health education, and another more vertical, which delivers treatment and infrastructure improvements.