本文报告1992年3月,元江县粮油加工厂一周内相继出现9例不明原因发热、单侧腹股沟淋巴结肿大的病人。首例病人出现之前周围环境已发现大量死鼠,并从该厂内拣到40余只死鼠残骸中检测出鼠疫F_1抗原,滴度高达1:20480;自死鼠脏器悬液中分离到4株鼠疫杆菌;9例病人经血清学证实为腺鼠疫。流行期间宿主、媒介调查:黄胸鼠占总获鼠数的44.39％,染蚤率33.70％;印鼠客 This report reports that in March 1992, nine patients with unidentified fever and unilateral swollen inguinal lymph nodes emerged successively in the grain and oil processing plant of Yuanjiang County within one week. Before the first patient appeared, a large number of dead rats were found in the surroundings, and the plague F_1 antigen was detected in more than 40 dead rats from the factory with a titer of 1: 20480. 4 strains of Yersinia pestis; 9 cases of serological confirmed as bubonic plague. Host during the epidemic, the media survey: Rattus flages accounted for 44.39% of the total number of rats, dye flea rate was 33.70%; rat