阜阳市1991—2000年流行性出血热监测分析

Surveillance of EHF from 1991 to 2000 in Fuyang City

目的 对阜阳市监测点 1 991 2 0 0 0年的监测结果进行总结 ,为有针对性地制订防制对策提供依据。方法 根据《全国流行性出血热监测方案》的要求 ,对人间疫情及鼠间感染情况进行监测。结果 1 0年间共发病 1 51 96例 ,年平均发病率 1 0 .2 5/1 0万 ,呈逐年下降趋势 ;平均病死率 2 .34 % ;发病季节曲线低谷 (57月 )有抬高趋势 (P <0 .0 1 ) ;野外优势鼠种为黑线姬鼠 (77.1 7% ) ,鼠密度为 1 2 .67% ,带毒率为 7.46 % ;室内优势鼠种为褐家鼠 (53 .1 3 % ) ,鼠密度为 8.63 % ,带毒率为 9.56 %。结论 流行强度、疫情的地区季节分布发生的变化表明应继续加强监测工作 ,密切注意流行动态及鼠密度和带毒率的变化 。

Objetive In order to work out countermeasures of EHF, data of surveillance sites from 1991 to 2000 in Fuyang were analyzed. Methods human and mice EHF infection was monitored according to national surveillance plan of EHF. Results 15196 EHF cases were reported in the ten years. Average annual incidence was 10.25/10 5 . The incidence decreased year by year from 1991 to 2000. Average mortality of the EHF cases was 2.34%. The bottom of the seasonal incidence curve (May to July) had a elevated trend (P<0.01). Predominant mice species in field was L. interrogans (77.17%). Mice density was 12.67%. EHF virus carried rate was 7.46%; predominant mice species indoor was R. norvegicus (53.13%). Mice density was 8.63%. The virus carried rate was 9.56%. Conclusions in order to guide EHF control, surveillance should be strengthened, prevalence trends, mice density and carried rate should be monitored closely.