2015-2016年四川省血吸虫病疫情监测结果分析

Surveillance on Schistosomiasis Situation in Sichuan Province From 2015 to 2016

目的掌握四川省血吸虫病疫情现状及流行态势,为制定防控对策和干预措施提供依据。方法 2015-2016年在全省63个血吸虫病流行县(市、区)中各选择1个疫情较重的村作为监测点,开展本地人群、流动人群、家畜病情监测和螺情调查。结果 2015-2016年四川省本地人群血吸虫病血检阳性率分别为3. 11%和2. 78%,流动人群血检阳性率分别为1. 10%和1. 47%;人群粪检均未发现血吸虫卵阳性。两年均没有查出血吸虫感染性钉螺,有螺面积、活螺平均密度等有所回升。两年家畜检测血吸虫均为阴性。结论 2015-2016年四川省血吸虫病疫情平稳,但螺情有所回升,血吸虫病传播风险仍然存在。应继续加强以传染源控制为主的综合防控措施,防止疫情反弹。

Objective To understand the epidemic situation and prevalence status of schistosomiasis in Sichuan Province, so as to provide the evidence for formulating the control strategy and intervention measures. Methods The heavy schistosomiasis epidemic villages were selected from each of 63 epidemic counties as the survey sites in 2015- 2016. Then, the serological and etiological tests were carried out in the local residents and floating population, and the infection status of the livestock, Oncomelania hupensis was surveyed. Results The serum positive rate of schistosomiasis of local residents were 3. 11%, 2. 78% in the year of 2015 and 2016; and at the same period, the serum positive rate were 1.10%, 1.47% of floating population respectively. No schistosome eggs were found in the stool examinations in the population. No sehistosome- infected snail was found, the area with snails and the average density of living snails was rose again, and no positive livestock were found. Conclusion The schistosomiasis epidemic situation was stabilized in Siehuan Province from 2015 to 2016. However, the area with snails and the number of living snails were increasing. Therefore, the schistosomiasis epidemic risk still existed. The comprehensive measures should be strengthened continuously mainly by control the infection source, to prevent the epidemic outbreak again.