Epidemiological characteristics and spatio-temporal clustering analysis of brucellosis in Yulin City,Shaanxi Province from 2016 to 2020
LUO Bo-yan1, NIE Shou-min1, FAN Suo-ping1, GUO Shao-hua2, AN Cui-hong1, WANG Wen-jing1, SUN Yang-xin1
1. Shaanxi Provincial Center for Disease Control and Prevention, Xi?an 710054, China; 2. Yulin City Center for Disease Control and Prevention, Yulin 719000, China
Abstract:To explore the epidemiological characteristics and spatio-temporal clustering of brucellosis (brucellosis) in Yulin City, Shaanxi Province from 2016 to 2020, we collected and analyzed data on brucellosis incidence from the China Information System for Disease Control and Prevention. During 2016-2020, a total of 1 773 cases were reported in Yulin City, with an average annual incidence rate of 10.40 per 100 000. Three-dimensional trend analysis indicated that the incidence of brucellosis in Yulin City gradually increased from north to south, and from west to east. Spatial autocorrelation analysis of the incidence of brucellosis in Yulin City from 2016 to 2019 showed a significant positive spatial correlation, and indicated a "high-high” cluster and “low-low” cluster. The analysis of spatio-temporal scans revealed that the incidence of brucellosis in Yulin City was grouped into one first-class spatiotemporal gathering area and one second-class spatiotemporal gathering area; the gathering time was the year 2019; and the first-class spatiotemporal gathering area (LRR=57.97, RR=2.49, P<0.001) was centered on Mizhi County, with a radius of 51.62 km, involving five counties. On the basis of the results of the above analyses, brucellosis in Yulin City from 2016 to 2020 showed clear spatiotemporal clustering. A regional, focused, and simultaneous joint prevention strategy including humans and animals should be adopted for disease prevention and control, considering the peak time of brucellosis, the population with the disease, the spatiotemporal clustering area, and the number of sheep.
罗波艳, 聂守民, 范锁平, 郭少华, 安翠红, 王文静, 孙养信. 2016-2020年陕西省榆林市人间布鲁氏菌病流行特征与时空聚集性[J]. 中国人兽共患病学报, 2022, 38(2): 122-127.
LUO Bo-yan, NIE Shou-min, FAN Suo-ping, GUO Shao-hua, AN Cui-hong, WANG Wen-jing, SUN Yang-xin. Epidemiological characteristics and spatio-temporal clustering analysis of brucellosis in Yulin City,Shaanxi Province from 2016 to 2020. Chinese Journal of Zoonoses, 2022, 38(2): 122-127.