Objective: To assess the state of schistosomiasis elimination in 6 districts of Changzhou City, Jiangsu Province, so as to provide the evidence for the formulation of consolidation measures.
Methods: Three towns (streets) were selected according to the schistosomiasis epidemic degree in each district, and one village was sampled from each town. The on-site assessment was carried out between 2016 and 2017, including Oncomelania hupensis snail survey, population investigation and domestic animal investigation. In addition, the related data and materials were evaluated and the monitoring ability was assessed.
Results: In the history, there were 54 endemic towns, 368 endemic villages in Changzhou City, with a total area of 3 934.79 hm2 of historic snail spots, and 114 990 schistosomiasis cases so far. In the field assessment in 6 districts, a total of 26 environments were surveyed, with the surveyed area of 36.23 hm2, and there were no living snails captured in each village. A total of 18 199 people were examined for schistosome infection, 255 were blood test positive, and the sero-positive rate was 1.40%. The stool examination was done in 255 sero-positive cases, and no cases were stool-positive. A total of 779 domestic animals were investigated, including 200 cattle, 179 sheep and 400 pigs, and no infections were detected. The files regarding the snail status and schistosomiasis epidemic situation, and the monitoring data were complete and accurate in 6 districts. The annual investment funds for schistosomiasis prevention were 3 120 000 Yuan in Changzhou City, and the number of staff working for schistosomiasis prevention was 86 totally, which could meet the requirements of high quality monitoring.
Conclusions: All 6 districts of Changzhou City have met the requirements of schistosomiasis elimination.
[摘要] 目的 考核评估江苏省常州市6个区 (市) 达到血吸虫病消除标准的防治效果。方法 根据血吸虫病流行程 度, 在2016-2017年常州市6个区 (市) 各抽取3个乡 (镇、街道), 每个乡 (镇、街道) 抽取1个村进行现场考核评估, 开展螺 情和人畜病情调查, 并进行资料审核与监测能力评估。结果 常州市共有历史血吸虫病流行乡 (镇、街道) 54个, 流行 村368个, 累计有螺面积3 934.79 hm2, 累计血吸虫病人114 990人。6个区 (市) 现场考核评估共调查环境26个, 面积 36.23 hm2, 未捕获活钉螺。共开展人群查病18 199人, 查出血检阳性255人, 血检阳性率1.40%; 血检阳性者全部进行粪 便孵化, 未查出粪检阳性病人。共开展家畜查病779头 (只), 其中牛200头、羊179只、猪400头, 未查出粪检阳性家畜。6 个区 (市) 螺情、病情图账监测资料齐全、准确, 监测工作台帐完整。全市每年投入血防经费312万元, 现有各级血防人员 86人, 能够满足监测工作的高质量开展。结论 常州市6个区 (市) 已达到我国血吸虫病消除标准。.
Keywords: Changzhou City; Elimination; Schistosomiasis; Surveillance.