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1990年我国鼠疫疫情异常活跃,在三个省区的4个县、旗中发生人间鼠疫病人75例,其中死亡两例。病例分布在内蒙古、青海各一例,云南73例。全年病例总数和一次暴发所出现的病例数均为1954年以来的最高纪录。动物中检出鼠疫菌707株,远
In 1990, the epidemic situation of plague in our country was very active. There were 75 human plague patients in the four counties in three provinces and regions, of which two died. Case distribution in Inner Mongolia, Qinghai, a case of Yunnan 73 cases. The total number of cases and the number of outbreaks during the year were the highest since 1954. 707 strains of Yersinia pestis were detected in animals