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目的了解辽宁省监测点鼠密度、鼠种构成、鼠带病毒情况,以及鼠密度季节消长曲线与肾综合征出血热(HFRS)人群发病之间的关系,为今后更有效地控制HFRS疫情提供依据。方法采用夹夜法对丹东的凤城市、沈阳市的于洪区和葫芦岛的兴城市3个国家级监测点鼠密度、鼠种构成及鼠带病毒率进行逐月监测。结果全年鼠密度在春秋两季各出现一个高峰,以5月份鼠密度最高达10.83%,1月份仅为0.99%。村内鼠密度高于村外,二者差异有统计学意义(χ2=181.24,P<0.01)。以褐家鼠为优势鼠种。全年共剖取鼠肺555份,阳性32份,带病毒率为5.77%。结论HFRS的发生与鼠密度密切相关,应采取以防鼠灭鼠为主的综合性防制措施。
Objective To understand the relationship between rat density density, rat species formation, murine virus infection and the seasonal fluctuation curve of rat density and the incidence of hemorrhagic fever with renal syndrome (HFRS) in Liaoning Province in order to provide a basis for more effective control of HFRS in the future . Methods The nocturnal method was used to monitor the rat density, rat species composition and rat virus rate at three national monitoring sites in Fengcheng City of Dandong, Yuhong District of Shenyang City and Xingcheng City of Huludao. Results Rat density in the whole year showed a peak in spring and autumn, with rat density reaching as high as 10.83% in May and only 0.99% in January. The density in the village was higher than that outside the village, the difference was statistically significant (χ2 = 181.24, P <0.01). Rattus norvegicus dominant mouse species. A total of 555 rat lungs were dissected for the whole year, with 32 positives and a virus rate of 5.77%. Conclusion The occurrence of HFRS is closely related to the rat density, and should be taken as a comprehensive prevention and control strategy.