2013-2020年山西省晋中市布鲁氏菌病监测结果分析

Surveillance results of brucellosis in Jinzhong City Shanxi Province from 2013 to 2020

目的分析山西省晋中市人间布鲁氏菌病(布病)疫情动态及流行特点,为制定防控措施提供科学依据。方法收集2013-2020年"中国疾病预防控制信息系统"布病疫情数据和晋中市历年布病防控监测资料,描述性分析晋中市布病流行特征及血清学与病原学监测结果。结果2013-2020年晋中市累计报告布病病例5235例,年均发病率为19.60/10万,各年发病率比较差异有统计学意义(χ^(2)=561.09,P<0.001)。报告病例数最多的地区为平遥县(903例),发病率最高的地区为榆社县(59.78/10万)。历年各月均有发病,季节发病明显,发病高峰为3-7月份,占病例总数的60.50%(3167/5235)。人群分布以男性、20~60岁、农民为主,分别占81.07%(4244/5235)、85.06%(4453/5235)、81.34%(4258/5235)。流行病学调查高危职业人群33522人,血清学检查24544人,血清学阳性率为4.45%(1091/24544);病原学培养样本263份,检出布鲁氏菌52株,检出率为19.77%,均为羊种3型。结论近年来晋中市布病疫情呈散发态势,发病有明显地区差异,职业人群仍为目前防控重点。建议继续开展职业人群监测,做好健康教育和行为干预,及时掌握疫情动态,有效控制布病疫情。

Objective To analyze the epidemic dynamics and characteristics of human brucellosis in Jinzhong City,Shanxi Province,and to provide scientific basis for formulating prevention and control measures.Methods Brucellosis epidemic data from"China Disease Prevention and Control Information System"from 2013 to 2020 and the surveillance data of brucellosis prevention and control in Jinzhong City over the years were collected,and the epidemiological characteristics,serological and pathogenic monitoring results of brucellosis in Jinzhong City were analyzed.Results A total of 5235 cases of brucellosis were reported in Jinzhong City from 2013 to 2020,with an average annual incidence of 19.60/100000.There was a statistically significant difference in the annual incidence of each year(χ^(2)=561.09,P<0.001).Pingyao County had the largest number of reported cases(903 cases),and Yushe County had the highest incidence(59.78/100000).The incidence was observed in every month of the past years,with significant seasonal onset,the peak of the incidence was from March to July,accounting for 60.50%(3167/5235).The majority of the patients were male,aged 20-60 years,and farmers,accounting for 81.07%(4244/5235),85.06%(4453/5235)and 81.34%(4258/5235),respectively.Epidemiological investigation revealed 33522 high-risk occupational groups.Serological examination was performed in 24544 people,with a positive rate of 4.45%(1091/24544).In 263 pathogenic culture samples,52 strains of Brucella were found,with a detection rate of 19.77%,all of them were sheep type 3.Conclusions In recent years,the epidemic of brucellosis in Jinzhong City has shown a sporadic trend,with significant regional differences in the incidence.The occupational population is still the focus of prevention and control.It is suggested to carry out occupational population monitoring,do a good job in health education and behavioral intervention,timely learn about the epidemic dynamics,and effectively control the brucellosis epidemic.