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阿鲁科尔沁旗东北部1987年5月首次从自毙达乌尔黄鼠(下称黄鼠)及其寄生蚤——方形黄鼠蚤松江亚种(下称黄鼠蚤)体内分离出鼠疫菌41株,从而证实该旗北部为鼠疫自然疫源地。
Arukuer Qinqi northeast May 1987 for the first time from the self-death daurian ground cocoon (hereinafter referred to as the yellow rat) and its parasitic flea - square rat flea Songjiang subspecies (hereinafter referred to as yellow rat fleas) isolated Yersinia pestis 41 strains, thus confirming that the northern part of the flag is plague natural foci.