Abstract:

Objective Objective To understand the condition of the construction and management of sanitary latrines，and assess the effect of disposal of the excrement in rural schistosomiasis endemic areas in Yunnan Province. Methods Methods Three villages with schistosomiasis endemic were selected from Eryuan County and 30 households per village were sampled randomly for the field survey. The stool samples were sampled and tested according to the national standard. Results Results Totally 90 latrines were sur? veyed. The popularity rates of sanitary latrines in Yongle，Qiandian and Xinzhuang villages were 83.19%，83.12% and 81.63% respectively. In the 90 household latrines，only 32.22% located inside the courtyard，and 91.67% of sanitary latrines and 70.00% of non?sanitary latrines had integrated buildings. Maggots or pupae or adult flies were found in 33.33% of sanitary la? trines and all of non?sanitary latrines with the average amounts of 1.05 and 3.40 per latrine respectively. The removal rate of fecal coliform，the sedimentation rate of parasitic eggs and the mortality rate of Ascaris eggs were 90.00%，80.61% and 95.20% on av? erage respectively. The qualified rate of the fecal coliform of the outlet of the sanitary latrines was 41.67%，and the qualified rate of the mortality rate of Ascaris eggs was 78.13%. No living schistosome eggs were found at the outlets of latrines. For the effect of non?hazardous treatment，there was a statistically significant difference between the sanitary latrines and non?sanitary latrines. Conclusions Conclusions The latrine improvement has a good effect on non?hazardous treatment of the excrement in Yunnan Province，but the construction， application and management of sanitary latrines still need to be strengthened.

Key words: Schistosomiasis； Sanitary latrines； Non?hazardous treatment of excrement； Eryuan County； Yunnan Province

摘要：

目的 目的 了解云南省血吸虫病流行区农村卫生厕所建设和管理状况， 评价粪便无害化处理的效果。 方法 方法 在云南省洱源县选取3个血吸虫病流行村， 每村随机抽取30户， 现场调查改厕相关基本情况， 按照国家标准采集和检测厕所粪便样品。 结果 结果 抽查的永乐、 前甸和新庄等3个流行村卫生厕所普及率分别达83.19%、 83.12%和81.63%。共现场调查90座户厕， 仅32.22%的户厕建在庭院以内， 91.67%的卫生厕所和70.00%的非卫生厕所厕屋完整， 33.33%的卫生厕所和所有的非卫生厕所内有蛆/蛹/成蝇， 平均数量分别为1.05只/厕和3.40只/厕。卫生厕所粪大肠菌平均去除率为 90.00%， 寄生虫卵平均沉降率为80.61%， 蛔虫卵平均死亡率为95.20%。出粪液粪大肠菌值合格率为41.67%， 蛔虫卵死亡率合格率为78.13%， 未检出活血吸虫卵。卫生厕所与非卫生厕所无害化效果差异有统计学意义。 结论 结论 云南省血防改厕起到了较好的粪便无害化效果， 但仍要加强卫生厕所的建设、 使用和管理。

关键词: 血吸虫病； 卫生厕所； 粪便无害化； 洱源县； 云南省