一起羊羔屠宰点传播的布鲁氏菌病疫情流行病学调查  

Epidemiological investigation of a brucellosis outbreak transmitted through a lamb slaughtering site

作　　者：张红芳[1] 王国华[1] 刘建[1] 钱华[1] 唐涛 ZHANG Hongfang;WANG Guohua;LIU Jian;QIAN Hua;TANG Tao(Department of Infectious Disease Control and Prevention,Tongxiang Center for Disease Control and Prevention,Tongxiang,Zhejiang 314500,China)

机构地区：[1]桐乡市疾病预防控制中心传染病防制科,浙江桐乡314500

出　　处：《预防医学》2024年第10期887-888,892,共3页China Preventive Medicine Journal

摘　　要：2022年8月11日,桐乡市疾病预防控制中心检出1例非职业人员布鲁氏菌病(布病)病例,立即组织开展病例搜索和危险因素调查,追溯感染来源。调查发现,该病例在某农贸市场售卖水产,经常前往一家羊羔屠宰点毗邻的水产仓库取货,可能因间接接触屠宰羊羔或污染物而感染布病。对9名羊羔屠宰点从业人员及周边48名居民开展血清学检测,并搜索同期医院诊断的该区域布病病例,累计发现布病病例11例,其中确诊病例9例,隐性感染者2例;屠宰职业人员2例,屠宰点周边非职业人员9例。从1例屠宰职业人员和1例非职业人员病例血液样本中检出羊种3型布鲁氏菌。屠宰羊羔主要来自内蒙古、黑龙江等北方地区。判断这是一起经羊羔屠宰点传播的羊种3型布鲁氏菌引起的布病聚集性疫情,感染者系因直接或间接接触外来输入染病羊羔或其周边环境污染物而感染。建议有关部门加强外来羊只检疫,依法取缔不合规的羊羔屠宰点,实施定点屠宰,加强职业防护。On August 11,2022,Tongxiang Center for Disease Control detected a case of brucellosis,and the case was not engaged in related work.Case finding and risk factor investigation were immediately conducted to trace the source of infection.It was revealed that the case sold aquatic products at a farmer's market and frequently picked up goods at a seafood warehouse adjacent to a lamb slaughtering site.There was a potential risk of infection due to indirect contact with slaughtered lambs or contaminants.Serological tests were conducted on 9 employees of the slaughtering site and 48 residents nearby,and the brucellosis cases diagnosed in hospitals in the same area were searched.A total of 11 bru⁃cellosis cases were identified,including 9 confirmed cases and 2 asymptomatic infections.There were 2 cases of slaugh⁃tering workers and 9 cases of non-occupational individuals from the surrounding area of the slaughtering site.Brucella melitensis biovar 3 were isolated from a slaughtering worker and a non-occupational individual.The slaughtered lambs primarily came from northern regions such as Inner Mongolia and Heilongjiang.It was concluded that it was a cluster caused by Brucella melitensis biovar 3 and spread through direct or indirect contact with imported infected lambs or con⁃taminated environments from a lamb slaughtering site.It is suggested to strengthen the quarantine of imported sheep,le⁃gally shut down non-compliant lamb slaughtering sites,implement designated slaughtering and enhance occupational pro⁃tection.

关 键 词：布鲁氏菌病 羊羔屠宰点 流行病学调查 

分 类 号：R378.5[医药卫生—病原生物学]