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目的对甘肃省临泽县重点人群开展布鲁氏菌病流行病学调查,为进一步控制疫情提供依据。方法根据线索选择与牲畜有密切接触史的7~73岁100人作为重点人群,与重点人群相对应的179只羊作为调查对象;无菌采集静脉血,分离血清进行虎红平板凝集实验(RBPT)和试管凝集试验(SAT);开展人群和患者的流行病学调查,进行疫情处置。结果 100份人血清,RBPT检出阳性5份;SAT检出强阳性血样3份、弱阳性3份,其中1份由北京医科大学网络报告;检测羊血清179份,确诊阳性31份;流行病学调查确诊患者6例,按疫情要求处置病羊31只。结论甘肃省临泽县本次疫情呈点状暴发流行,家庭聚集性明显,多因引进未经检疫的外地羊只传染而致,对重点人群的布鲁氏菌病防控观念及措施亟待加强。
Objective To carry out epidemiological investigation on brucellosis in key population of Linze County, Gansu Province, and provide evidence for further controlling the epidemic. Methods According to clues, 100 sheep aged 7-73 years with history of close contact with livestock were selected as the key population and 179 sheep corresponding to the key population were selected as the investigation object. The venous blood was collected aseptically and the serum was separated for RBPT ) And test tube agglutination test (SAT); carry out epidemiological investigation of the population and patients, the epidemic disposal. Results 100 human serum samples were positive for RBPT, 3 for strong positive blood samples and 3 for weakly positive ones. One of them was reported by the network of Beijing Medical University. 179 serum samples were detected and 31 were positive. Study confirmed 6 cases of patients diagnosed, according to the epidemic requirements of sick sheep 31. Conclusions The epidemic in the Linze County of Gansu Province was spot-shaped and the family aggregation was obvious. Most of the outbreaks were caused by the introduction of foreign sheep that had not been quarantined. The prevention and control concepts and measures for brucellosis in key populations should be urgently strengthened .