Surveillance of hemorrhagic fever with renal syndrome in Zhejiang province, 2010
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摘要: 目的 掌握2010年浙江省肾综合征出血热(HFRS)流行特征以及宿主动物密度和种群构成、病毒感染等情况,为防治HFRS提供参考依据。 方法 自中国疾病预防控制信息系统中导出人间疫情数据,采用描述流行病学和统计学方法分析数据;用夹夜法捕获鼠形动物,无菌操作取肺和血清,用免疫荧光方法分别检测抗原和抗体,计算鼠密度、种群构成、带病毒率和抗体阳性率。 结果 2010年浙江省共报告HFRS 457例,死亡3例,与2009年同期相比基本一致。发病年龄主要集中在20~64岁年龄组,职业以农民为主,男女发病数比例为2.715 ∶ 1。宿主动物以黑线姬鼠和褐家鼠为优势鼠种,全省鼠形动物平均带病毒率为3.86%。 结论 2010年浙江省HFRS发病呈稳定态势,黑线姬鼠和褐家鼠为主要宿主,要加强针对性的监测和灭鼠工作。Abstract: Objective To understand the epidemiological characteristics of hemorrhagic fever with renal syndrome (HFRS) and the density, species and the viral infection status of host animals in Zhejiang province in 2010, and provide scientific evidence for HFRS prevention and control. Methods Descriptive epidemiological analysis and statistical analysis were conducted on the incidence data of HFRS in Zhejiang obtained from national disease reporting information system. Rodents were captured by night trapping, and their lung and serum samples were collected through aseptic technique. The antigen and antibody were detected by using immumofluorescence assay. The density, species proportion, viral infection rate and the sero-antibody positive rate of the rodents were calculated. Results Totally 457 cases of HFRS were reported in 2010, including three fatal cases, which was similar to that in 2009. Most HFRS cases were farmers aged 20-64 years. The male to female ratio of the cases was 2.715 ∶ 1. Apodemus agrarius and Rattus norvegicus were the predominant host animals for HFRS. The viral infection rate among rats was 3.86%. Conclusion The incidence of HFRS was stable in Zhejiang province in 2010. Apodemus agrarius and Rattus norvegicus were the predominant host animals Targeted surveillance and deratization should be strengthened to reduce the incidence of HFRS.
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Key words:
- hemorrhagic fever with renal syndrome /
- surveillance /
- epidemiology
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