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目的分析2001-2013年内蒙古察哈尔丘陵、松辽平原达乌尔黄鼠鼠疫自然疫源地动物鼠疫流行特点,为鼠疫监测和防治提供科学依据。方法收集2001-2013年内蒙古达乌尔黄鼠鼠疫自然疫源地各年度鼠疫监测数据,采用描述性流行病学方法分析。结果 2001-2013年,共捕获达乌尔黄鼠18 937只,鼠密度为0.88只/hm~2;共梳检达乌尔黄鼠38 203只,染蚤率为48.60%,获蚤76 452匹,蚤指数为2.00;从察哈尔丘陵地区的长爪沙鼠中分离到鼠疫菌1株,间接血凝试验检出达乌尔黄鼠鼠疫F1阳性血清93份。结论 2001-2013年该疫源地未发生人间鼠疫疫情;除2011、2013年外其他年份均有动物间鼠疫疫情,疫源地动物间鼠疫仍活跃。
Objective To analyze the epidemiological characteristics of animal plague in the natural foci of Daurian wallaby from 2001 to 2013 in Chahar hills and the Songliao plain in Inner Mongolia, and provide a scientific basis for the surveillance and prevention of plague. Methods The data of plague surveillance in natural foci of Daurian ground squirrel from 2001 to 2013 were collected and analyzed by descriptive epidemiological method. Results A total of 18 937 Daurian ground crabs were collected from 2001 to 2013, with a density of 0.88 / hm ~ 2. A total of 38 203 Daurian ground squirrels were screened for 48.60% The flea index was 2.00. One strain of Yersinia pestis was isolated from Meriones unguiculatus in Chahar Hilly region, and 93 strains of F1 positive sera were detected by indirect hemagglutination test. Conclusions There was no outbreak of human plague in this epidemic area in 2001-2013. There was an outbreak of plague among animals in other years except in 2011 and 2013, and plague was still active among the animals in the epidemic area.