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中国白城兵器试验中心场区位于吉林西北部草原，地处吉林、黑龙江和内蒙古３省（区）的交界处，属于松辽平原达乌尔黄鼠鼠疫自然疫源地的一部分，亦是一块古老的鼠疫自然疫源地［１］。研究该场区疫源地的状态和该疫源地鼠疫菌的性状，不仅对该地区鼠疫的监测、防治具有指导意
The site of China’s Baicheng Weapon Experiment Center is located in the grassland of northwestern Jilin, at the junction of Jilin, Heilongjiang and Inner Mongolia provinces (regions), and is part of the natural foci of the Dalus coumage plague in the Songliao Plain. It is also an ancient Of plague natural foci [1]. Studying the status of the foci and the traits of Y. pestis in this foci not only provide guidance for the prevention and control of plague in this area