2006—2015年山西省布鲁氏菌病疫情分析

Epidemiology of brucellosis in Shanxi,2006-2015

目的分析2006—2015年山西省布鲁氏菌病（布病）疫情特征,为开展布病预防与控制提供依据。方法对山西省10年间报告的布病数据资料进行描述性分析。结果 10年间山西省共报告布病54 679例,呈逐年增加趋势,由2006年的3452例增至2015年的6997例,平均增幅为10.27%;病例波及全省11市119个县（市、区）,2011-2015年扩散至山西省所有县（市、区）,报告发病率介于10.26/10万~23.53/10万之间,平均发病率为15.51/10万;2014年发病数、发病率均达到有记录以来的最高水平,大同市、朔州市、晋中市和忻州市共报告布病37 619例,占全省报告病例总数的68.80%。布病监测点共采集职业人群血清25 190份,阳性2068人,阳性率为8.21%。全省共分离到布鲁氏菌226株,羊种布鲁氏菌225株,布鲁氏菌非典型菌株1株,羊种3型布鲁氏菌225株,占总分离菌株数的99.56%。结论山西省近年来布病发病呈快速上升趋势,大同市、朔州市和晋中市布病流行水平较高,运城市和临汾市疫情增长较快,呈明显的季节性高发特征。布鲁氏菌流行优势菌种是羊种3型,应进一步加强布病防治,控制布病疫情。

Objective To analyze the epidemiological characteristics of brucellosis in Shanxi province from 2006 to 2015 and provide evidence for the prevent and control of brucellosis.Methods Descriptive epidemiological analysis was conducted by using the incidence data of brucellosis in Shanxi during this period.Results A total of 54 679 brucellosis cases were reported,the reported cases increased with year from 3452 cases in 2006 to 6997 cases in 2015 with an average rate of10.27%.The brucellosis cases were distributed in nearly all the 11 prefectures（municipality）.All the 119 counties（district）were affected in 2011,2013,2014 and 2015.The reported incidence ranged from 10.26/100 000 to 23.53/100 000,the average incidence was 15.51/100 000.The case number and incidence in 2014 were highest historically.A total of 37 619 cases of brucellosis were reported in Datong,Shuozhou,Jinzhong,Xinzhou,accounting for 68.80% of the province total.Totally 25 190 blood samples were collected from risk population,in which 2068 were positive for Brucella（8.21%）.A total of 226 strains of brucellosis were detected,including 225 strains Brucella melitensis biovar 3 and 1 atypical brucella strains,225 strains Brucella melitensis biovar 3 accounted for 99.56% of the total strains.Conclusion The brucellosis epidemic was serious in Shanxi,indicted by rapid annual increase of the incidence,especially in Yuncheng and Linfen,and the high prevalence in Datong,Shuozhou and Jinzhong in recent years.The disease seasonality was obvious,and Brucella melitensis biovar 3 was predominant.It is necessary to further strengthen the brucellosis prevention and control in Shanxi.