Epidemiological characteristics of animal plague in Erenhot, Inner Mongolia Autonomous Region, 2013-2023
10.3760/cma.j.cn231583-20241011-00362
- VernacularTitle:2013—2023年内蒙古自治区二连浩特市动物鼠疫流行病学特征分析
- Author:
Yilan FENG
1
;
Fang LIU
1
;
Zhongbing ZHANG
1
;
Wenrui WANG
1
;
Xinxin YU
1
;
Jianyun LI
1
;
Dayu ZHANG
1
;
Shuyi WANG
1
Author Information
1. 内蒙古自治区疾病预防控制中心（内蒙古自治区预防医学科学院）克山病大骨节病防控科，呼和浩特 010080
- Publication Type:Journal Article
- Keywords:
Plague;
Epidemiological characteristics;
Analysis
- From:
Chinese Journal of Endemiology
2025;44(6):472-476
- CountryChina
- Language:Chinese
-
Abstract:
Objective:To analyze the population structure, quantity of rodents, fleas and epidemiological characteristics of animal plague in the plague foci of Erenhot in Inner Mongolia Autonomous Region, and to provide a basis for scientific prevention and control of plague.Methods:The descriptive epidemiological method was used to analyze the surveillance and epidemic data of plague in Erenhot from 2013 to 2023 (from the plague prevention and control management information system of the Chinese Center for Disease Control and Prevention, and the summary of plague surveillance data in Inner Mongolia Autonomous Region from 2013 to 2023), including rat density, nocturnal rat capture, flea infection of rodents, bacteriological and serological detection, etc.Results:From 2013 to 2023, a total of 418 hm 2 of plague foci were investigated in Erenhot, 1 054 rats were caught, and the density of rats was 2.52/hm 2, among which Meriones unguiculatus was the dominant species ( n = 480), and the density was 1.15/hm 2. The capture rate of nocturnal rodents was 6.38% (1 291/20 250). The flea infestation rate of rodents was 35.53% (1 491/4 197), with a flea index of 1.25. Xenopsylla conformity is the dominant flea species ( n = 1 886). Animal plague outbreaks occurred in 7 years, with 11 positive rodents and 10 groups of positive fleas identified by the bacteriology tests, and a total of 21 strains of Yersinia pestis isolated. Eleven positive sera samples were detected by serology. Conclusion:The rodent density in the plague foci of Erenhot is relatively low, but the flea index is high, the animal epidemic is active, facing a significant risk of imported human and animal plague epidemics.
