驻陕某部肾综合征出血热疫情及控制策略分析

Analysis of epidemic situation of hemorrhagic fever with renal syndrome and its control strategy in one troop in Shaanxi province,China

目的了解某部驻地肾综合征出血热(HFRS)疫情动态,为部队有效控制疫情提供依据。方法采用描述性流行病学方法分析HFRS疫情,鼠密度监测采用夹夜法和粉迹法,采用间接免疫荧光法检测HFRS抗体,调研部队防控形势。结果 2009年11月24日至12月11日驻陕某部报告HFRS病例4例;黑线姬鼠为当地优势种,占野外捕获鼠数的94.38%,鼠带病毒率为3.12%;灭鼠前鼠密度为3.00%,灭鼠后降至0;检测临床患者血清159份,其中IgM抗体阳性136份,抗体阳性率为85.53%。结论某部驻地为野鼠型HFRS老疫区,应加强监测,采取综合性措施预防控制HFRS疫情。

Objective To investigate the epidemic situation of hemorrhagic fever with renal syndrome（HFRS） in the encampment of a troop in Shaanxi province,China,and to provide a basis for troops to control the epidemic situation of HFRS effectively.Methods The epidemic situation of HFRS was analyzed by descriptive epidemiology.The mouse density was monitored by trap-at-night method and powder-trace method.The HFRS antibody was detected by indirect immunofluorescence assay.Results Four cases of HFRS were reported in the troop from November 24th to December 11th,2009.As for host animals,Apodemus agrarius was the dominant species locally,accounting for 94.38% of the mice trapped in the wild.There were 3.12% of the trapped mice which carried the virus causing HFRS.The mouse density was 3.00% before killing and decreased to zero after killing.A total of 159 sera were tested in the encampment,and 136 of them were positive with IgM.Conclusion The encampment is the epidemic region of field mouse-type HFRS.Surveillance should be strengthened,and comprehensive measures should be taken for prevention and control of HFRS.