Occurrence of Host-Associated Fecal Markers on Child Hands, Household Soil, and Drinking Water in Rural Bangladeshi Households
Occurrence of Host-Associated Fecal Markers on Child Hands, Household Soil, and Drinking Water in Rural Bangladeshi Households
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DOI：
10.1021/acs.estlett.6b00382
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发表时间：
2016-11-01
影响因子：
10.9
通讯作者：
Pickering, Amy J.
中科院分区：
文献类型：
--
作者：
Boehm, Alexandria B.;Wang, Dan;Pickering, Amy J.
我们评估了在参加整群随机试验的孟加拉国农村地区，提供和推广改进的卫生硬件（厕所和儿童粪便管理工具）是否可以减少轮状病毒和人类粪便对饮用水、儿童手和土壤的污染。我们还测量了反刍动物和鸟类粪便的宿主相关遗传标记。我们发现了复合环境中广泛存在反刍动物和鸟类粪便污染的证据；非人类粪便标记物的出现与动物拥有量成正比。在设计干预措施以减少低收入环境中粪便污染的暴露时，应考虑控制非人类粪便废物的策略。与人类相关的粪便标记物和轮状病毒的检测很少见，并且通过提供和促进改善卫生条件以干预化合物而没有改变。卫生干预措施减少了饮用水中的反刍动物粪便污染和土壤中的一般（非宿主特异性）粪便污染，但总体而言对减少家庭环境中的粪便污染影响有限。
We evaluated whether provision and promotion of improved sanitation hardware (toilets and child feces management tools) reduced rotavirus and human fecal contamination of drinking water, child hands, and soil among rural Bangladeshi compounds enrolled in a cluster-randomized trial. We also measured host-associated genetic markers of ruminant and avian feces. We found evidence of widespread ruminant and avian fecal contamination in the compound environment; non-human fecal marker occurrence scaled with animal ownership. Strategies for controlling non-human fecal waste should be considered when designing interventions to reduce exposure to fecal contamination in low-income settings. Detection of a human associated fecal marker and rotavirus was rare and unchanged by provision and promotion of improved sanitation to intervention compounds. The sanitation intervention reduced ruminant fecal contamination in drinking water and general (non-host specific) fecal contamination in soil but overall had limited effects on reducing fecal contamination in the household environment.