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目的了解安徽省铜陵县血吸虫病疫情变化情况,为总结“十二五”防治成果、制定“十三五”规划提供参考依据。方法收集2009-2014年铜陵县血吸虫病防治年报及有关螺情和人群病情资料,分析血吸虫病流行状况和特点。结果 2009-2014年人群感染率和血检阳性率显著下降,6年间仅2009年出现1例急性感染病例;家畜感染率下降显著,2010年较2009年下降了91.10%;5年间钉螺面积和活螺平均密度呈下降趋势,但2011-2012年山丘地区活螺平均密度有所升高,2011年以后未查到感染性钉螺。结论铜陵县血吸虫病人群感染率已控制在较低水平,但湖沼地区有螺面积仍较大,内陆有螺环境活螺平均密度较高。今后的血防工作规划要以控制湖沼地区螺情、消灭内陆残存螺点为主,以巩固防治成果。
Objective To understand the epidemic situation of schistosomiasis in Tongling County, Anhui Province, and to provide a reference for formulating the prevention and treatment results of Twelfth Five-Year Plan and formulating the “13th Five-Year Plan”. Methods The annual reports of prevention and treatment of schistosomiasis in Tongling County from 2009 to 2014 were collected. The prevalence and characteristics of schistosomiasis were analyzed. Results In 2009-2014, the infection rate and the positive rate of blood tests were significantly decreased. Only one case of acute infection was observed in 2009 in six years. The infection rate of domestic animals dropped significantly, which was 91.10% lower than that of 2009. In five years, snail area and live The average density of snails showed a decreasing trend, but the average density of live snails in the hills from 2011 to 2012 increased somewhat. Infectious snails were not found after 2011. Conclusion The infection rate of schistosomiasis in Tongling County was controlled at a relatively low level. However, the area of snails in lakes and mountains was still large, and the average density of live snails in the inland snail environment was relatively high. In the future, the plan for blood-resisting work should focus on controlling the snail in the lakes and reservoirs and eliminate the residual snails in the hinterland so as to consolidate the results of prevention and control.