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目的通过分析2007—2011年辽宁省监测资料,了解近几年辽宁省肾综合征出血热(HFRS)流行特征和变化趋势。方法对辽宁省2007—2011年传染病监测信息报告管理系统网络直报的HFRS病例资料及辽宁省各市监测资料,用描述性流行病学方法进行统计分析。结果 2007—2011年,辽宁省共报告HFRS病例4 177例,死亡33例,病死率为1.23%;发病率有回升趋势,死亡率、病死率逐年平稳下降;病例主要集中在辽东、辽西及中部地区的抚顺、沈阳、葫芦岛、锦州、铁岭和丹东等市,5年间6市报告发病数占辽宁省报告病例总数的74.48%(3 111/4 177);发病呈春季和秋冬季2个季节高峰,11月为全年最高发病月份;4 177例病例中,男性3105例,女性1072例,男女性别比为2.9∶1,青壮年、农民居多;鼠种分布村内、村外优势种分别为褐家鼠和黑线姬鼠,鼠密度为2.64%～5.63%(532/20 151～874/15 433),鼠带毒率为0.77%～4.80%(5/650～43/895)。结论辽宁省HFRS疫情有回升趋势,个别地区鼠密度和(或)带病毒率仍然较高,HFRS流行的隐患依然存在。
Objective To analyze the epidemiological characteristics and trends of hemorrhagic fever with renal syndrome (HFRS) in Liaoning Province in recent years by analyzing the monitoring data of Liaoning Province from 2007 to 2011. Methods The data of HFRS reported from the network of infectious disease monitoring information reporting and management system in Liaoning Province during 2007-2011 and the monitoring data of various cities in Liaoning Province were analyzed by descriptive epidemiological method. Results A total of 4 177 HFRS cases were reported in Liaoning Province in 2007-2011, with 33 cases being fatal and the case fatality rate was 1.23%. The morbidity was on the rise and the mortality and mortality rate decreased steadily year by year. The cases mainly concentrated in Liaodong, Liaoxi and central China In the five cities, Fushun, Shenyang, Huludao, Jinzhou, Tieling and Dandong cities accounted for 74.48% (3 111/4 177) of the total reported cases in Liaoning Province in 5 years; the incidence was in spring and autumn and winter seasons Peak in November the highest incidence of the month; 4 177 cases, 3105 males and 1072 females, male to female ratio of 2.9: 1, young and middle-aged, mostly peasants; rodents distribution within and outside the village dominant species were Rattus norvegicus and Apodemus agrarius had rat density of 2.64% -5.63% (532/20151-874/153 433). The virulence rates in mice were 0.77% -4.80% (5 / 650-43 / 895). Conclusion The epidemic situation of HFRS in Liaoning Province is on the rise. The rat density and / or virus prevalence in some areas is still high, and the prevalence of HFRS epidemic still exists.