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目的了解浙江省桐乡市20年来血吸虫病监测工作情况,巩固血防成果。方法从桐乡市疾病预防控制中心1994—2013年资料汇编、年报和专题总结中摘取血防螺情、病情监测数据。用描述性流行病学方法进行分析。结果病原学确诊输入性急性血吸虫病1例、慢性血吸虫病1例。仅2003年查到螺点1个,实际有螺面积7164 m2,密度0.056只/0.11 m2,无阳性钉螺。1994—2013年全市血清学检测207 523人次,抗体阳性4173人,平均阳性率为2.01%。其中1994—2003年血清学检测147 462人次,抗体阳性3850人,平均阳性率为2.61%,2004—2013年血清学检测60 061人次,抗体阳性323人,平均阳性率为0.54%。前、后10年抗体阳性率经χ2趋势检验,差异有统计学意义(χ2趋势=2350.93,P<0.001)。结论桐乡市血吸虫病疫情稳定,无内源性病例,但检出输入性病例,应加强对来自疫区流动人员的监测工作,巩固血防成果。
Objective To understand the surveillance of schistosomiasis in Tongxiang City, Zhejiang Province in the past 20 years and to consolidate the results of blood-borne disease prevention. Methods From Tongxiang City Center for Disease Control and Prevention 1994-2013 data compilation, annual report and special summary of blood-borne spirits, disease monitoring data. Descriptive epidemiological analysis. Results The etiological diagnosis of imported acute schistosomiasis in 1 case, chronic schistosomiasis in 1 case. Only in 2003 found a spiral point, the actual spiral area of 7164 m2, density 0.056 /0.11 m2, no positive snails. In 1994-2013, there were 207 523 serological tests in the whole city with 4173 antibody positives, the average positive rate was 2.01%. Among them, there were 147 462 serological tests in 1994-2003, 3850 were positive, the average positive rate was 2.61%, 60 061 serological tests were performed in 2004-2013, the antibody positive was 323, and the average positive rate was 0.54%. The positive rate of antibody in the first ten years and the last ten years was tested by χ2 trend, the difference was statistically significant (χ2 trend = 2350.93, P <0.001). Conclusion The epidemic situation of schistosomiasis in Tongxiang is stable and there is no endogenous cases. However, the detection of imported cases should strengthen the monitoring of migrants from the epidemic areas and consolidate the results of blood-borne disease prevention.