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在灰旱獭—长尾黄鼠疫源地中,长尾黄鼠(Citellus undulatus)的血清学反应阳性率高。造成这种高阳性率的原因,除了该宿主本身的特点之外,媒介昆虫的作用是
Citellus undulatus had a high positive rate of serological reaction in the Greyhound-Nagyma-rectus foci. The reason for this high positive rate, apart from the host’s own characteristics, is that the role of vector insects