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目的分析1969～2006年宁夏长爪沙土鼠疫源地鼠疫流行特征,探讨防治对策,为鼠疫防治提供科学依据。方法采用描述流行病学。结果发现染疫啮齿动物6种、媒介蚤3种、螨1种、猛禽1种,共分离出鼠疫菌321株。在4个监测县(市)发现鼠疫流行17年次,盐池县11年次、平罗县(原陶乐县)、银川市和灵武市各2年次;盐池县阳性年率30.56%(χ2=14.61,P<0.01)。结论1987～2006年鼠间鼠疫流行呈上升趋势,盐池县监测点为高发流行区。
Objective To analyze the epidemiological characteristics of plague in the long-claw germplasm of Ningxia from 1969 to 2006, and to discuss the prevention and treatment measures to provide a scientific basis for the prevention and control of plague. Methods used to describe epidemiology. As a result, 6 species of rodent, 3 species of vector flea, 1 species of mite and 1 species of raptor were found, and 321 strains of Yersinia pestis were isolated. In the 4 counties (cities), the epidemic of plague was found in 17 years, 11 times in Yanchi County, 2 years in Pingluo County (formerly Tao Le County), Yinchuan City and Lingwu City respectively; and the annual positive rate of Yanchi County was 30.56% (χ2 = 14.61, P <0.01). Conclusion From 1987 to 2006, the prevalence of plague in rats showed an upward trend, and the monitoring point in Yanchi County was endemic.