Animal Feces Contribute to Domestic Fecal Contamination: Evidence from E. coli Measured in Water, Hands, Food, Flies, and Soil in Bangladesh.
Animal Feces Contribute to Domestic Fecal Contamination: Evidence from E. coli Measured in Water, Hands, Food, Flies, and Soil in Bangladesh.
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DOI：
10.1021/acs.est.7b01710
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发表时间：
2017-08-01
影响因子：
11.4
通讯作者：
Colford JM Jr
中科院分区：
文献类型：
--
作者：
Ercumen A;Pickering AJ;Kwong LH;Arnold BF;Parvez SM;Alam M;Sen D;Islam S;Kullmann C;Chase C;Ahmed R;Unicomb L;Luby SP;Colford JM Jr
粪便-口腔病原体通过复杂的环境介导途径传播。将人类粪便与环境隔离的卫生干预措施可能会减少传播，但对环境污染的影响有限。我们在孟加拉国农村进行了一项研究，以（1）量化现场卫生覆盖率高的环境中的家庭粪便污染;（2）确定家畜如何影响粪便污染;（3）评估每种环境途径如何影响其他环境途径。我们从608个家庭收集了水、洗手液、食物、土壤和苍蝇样本。我们用IDEXX Quantitray分析样品中大肠杆菌的最可能数（MPN）。杆菌我们检测到了E.水源水（25%）、储存水（77%）、儿童手（43%）、食物（58%）、苍蝇（50%）、池塘（97%）和土壤（95%）中的大肠杆菌。土壤平均MPN E>120 000。在有动物和无动物的混合物中，E.大肠杆菌在土壤、贮水和食物中分别高出0.54、0.40和0.61 log 10（P < 0.05）。E.随着大肠杆菌浓度的增加，储藏水和食物中大肠杆菌的含量也增加。土壤、池塘、水源水和手中的大肠杆菌。我们提供的经验证据，粪便传播的家庭环境，尽管现场卫生。动物粪便有助于粪便污染，当动物存在时，粪便指示细菌并不能严格指示人类粪便污染。
Fecal-oral pathogens are transmitted through complex, environmentally mediated pathways. Sanitation interventions that isolate human feces from the environment may reduce transmission but have shown limited impact on environmental contamination. We conducted a study in rural Bangladesh to (1) quantify domestic fecal contamination in settings with high on-site sanitation coverage; (2) determine how domestic animals affect fecal contamination; and (3) assess how each environmental pathway affects others. We collected water, hand rinse, food, soil, and fly samples from 608 households. We analyzed samples with IDEXX Quantitray for the most probable number (MPN) of E. coli. We detected E. coli in source water (25%), stored water (77%), child hands (43%), food (58%), flies (50%), ponds (97%), and soil (95%). Soil had >120 000 mean MPN E. coli per gram. In compounds with vs without animals, E. coli was higher by 0.54 log10 in soil, 0.40 log10 in stored water and 0.61 log10 in food (p < 0.05). E. coli in stored water and food increased with increasing E. coli in soil, ponds, source water and hands. We provide empirical evidence of fecal transmission in the domestic environment despite on-site sanitation. Animal feces contribute to fecal contamination, and fecal indicator bacteria do not strictly indicate human fecal contamination when animals are present.
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影响因子：
3.4
作者：
Ahmed, KM;Bhattacharya, P;Sracek, O
通讯作者：
Sracek, O
影响因子：
3.7
作者：
Ercumen, Ayse;Naser, Abu Mohd.;Luby, Stephen P.
通讯作者：
Luby, Stephen P.
影响因子：
4.4
作者：
Goto, Dustin K.;Yan, Tao
通讯作者：
Yan, Tao
影响因子：
168.9
作者：
Chavasse, DC;Shler, RP;Akhtar, T
通讯作者：
Akhtar, T
影响因子：
2.7
作者：
AINI, I
通讯作者：
AINI, I