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１９９６年７～１２月，云南省个旧市发生了鼠疫流行。经现场流行病学调查，病原学和血清学检验，证实腺鼠疫患者５人；并从黄胸鼠体分离到鼠疫菌５株，查出反相血凝阳性６份。对所获３株鼠疫菌做了质粒图谱分析，除携有６５、４５和６ＭＤ三种质粒外，还有分子量约４ＭＤ的质粒。调查认为：此次鼠疫流行为我省北纬２５°以南的历史家鼠（黄胸鼠）鼠疫疫源地在静息８５年后的地区性复燃。
From July to December 1996, a plague epidemic took place in Gejiu City, Yunnan Province. Epidemiological investigation, etiological and serological tests confirmed 5 plague plague patients, and 5 strains of Yersinia pestis were isolated from the rodent rat, 6 of which were positive for anti-clotting. The obtained three strains of Y. pestis plasmid map analysis, in addition to carrying 65,45 and 6MD three plasmids, as well as a molecular weight of about 4MD plasmid. According to the survey, the plague epidemic rejuvenated the area after 85 years of rest in the plague origin area of the historical house mouse (Rattus flavipectus) south of 25 ° N in the province.