Environmental Health Group, Disease Control Department, London School of Hygiene and Tropical Medicine, Keppel Street, London WC1E 7HT, UK.
Trans R Soc Trop Med Hyg. 2012 Nov;106(11):709-10. doi: 10.1016/j.trstmh.2012.08.002. Epub 2012 Aug 30.
Simple pit latrines often represent the cheapest form of sanitation for poor communities. However, simple latrines lack a concrete slab and are therefore classified as an unimproved form of sanitation. This study collected soil samples in simple pit latrines and analysed them for the presence of helminth eggs; 71% of all collected samples were positive for eggs. The absence of a roof from the latrine was the only factor associated with lower egg concentrations. The findings support the classification of simple pit latrines as an unimproved form of sanitation.
简易坑式厕所通常是贫困社区最便宜的卫生设施形式。然而，简易厕所缺乏混凝土板，因此被归类为未改善的卫生形式。本研究在简易坑式厕所中采集土壤样本并分析其中是否存在寄生虫卵；采集的所有样本中有 71%呈阳性。厕所没有屋顶是唯一与较低卵浓度相关的因素。这些发现支持将简易坑式厕所归类为未改善的卫生形式。
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