College of Public Health, University of Iowa, Iowa City, Iowa.
London School of Hygiene and Tropical Medicine, London, United Kingdom.
Am J Trop Med Hyg. 2018 May;98(5):1250-1259. doi: 10.4269/ajtmh.17-0654. Epub 2018 Mar 15.
In crowded urban settlements in low-income countries, many households rely on shared sanitation facilities. Shared facilities are not currently considered "improved sanitation" because of concerns about whether hygiene conditions sufficiently protect users from the feces of others. Prevention of fecal exposure at a latrine is only one aspect of sanitary safety. Ensuring consistent use of latrines for feces disposal, especially child feces, is required to reduce fecal contamination in households and communities. Household crowding and shared latrine access are correlated in these settings, rendering latrine use by neighbors sharing communal living areas as critically important for protecting one's own household. This study in Accra, Ghana, found that household access to a within-compound basic latrine was associated with higher latrine use by children of ages 5-12 years and for disposal of feces of children < 5 years, compared with households using public latrines. However, within-compound access was not associated with improved child feces disposal by other caregivers in the compound. Feces was rarely observed in household compounds but was observed more often in compounds with latrines versus compounds relying on public latrines. and human adenovirus were detected frequently on household surfaces, but concentrations did not differ when compared by latrine access or usage practices. The differences in latrine use for households sharing within-compound versus public latrines in Accra suggest that disaggregated shared sanitation categories may be useful in monitoring global progress in sanitation coverage. However, compound access did not completely ensure that households were protected from feces and microbial contamination.
在低收入国家的人口密集城市住区,许多家庭依赖于共用卫生设施。由于担心卫生条件是否足以保护使用者免受他人粪便的污染,共用设施目前不被认为是“改良的卫生设施”。防止在厕所中接触粪便只是卫生安全的一个方面。为了减少家庭和社区中的粪便污染,必须确保经常使用厕所来处理粪便,尤其是儿童粪便。在这些环境中,家庭拥挤和共用厕所的情况是相关的,因此,邻居共用公共生活区域使用厕所对保护自己的家庭至关重要。这项在加纳阿克拉的研究发现,与使用公共厕所的家庭相比,家中有一个院内基本厕所,5-12 岁儿童以及 5 岁以下儿童的粪便使用厕所的频率更高。但是,院内使用厕所与院内其他照顾者改善儿童粪便处理情况没有关联。很少在家户院子里观察到粪便,但在有厕所的院子里比在依赖公共厕所的院子里观察到的更频繁。在家庭表面经常检测到肠道病毒和人腺病毒,但通过比较厕所的使用情况或使用方法,其浓度没有差异。阿克拉的家庭在共用院内厕所和公共厕所的使用情况存在差异,这表明分解的共用卫生设施类别可能有助于监测全球卫生设施覆盖范围的进展。然而,院内使用厕所并不能完全确保家庭免受粪便和微生物污染。