Epidemiological characteristics of hemorrhagic fever with renal syndrome and host animal surveillance analysis in Inner Mongolia Autonomous Region, China, 2016-2020

ZHANG Jing, ZHANG Yu-feng, LIU Zhong-min, HE Ling-ling, NAN Xiao-wei, JIANG Xiao-feng

doi:10.11853/j.issn.1003.8280.2022.03.014

Chinese Journal of Vector Biology and Control >

2022 , Vol. 33 >Issue 3: 387 - 393

DOI: https://doi.org/10.11853/j.issn.1003.8280.2022.03.014

Vector Infectious Disease

Epidemiological characteristics of hemorrhagic fever with renal syndrome and host animal surveillance analysis in Inner Mongolia Autonomous Region, China, 2016-2020

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1. Department of Vector Prevention and Control, Inner Mongolia Autonomous Region Comprehensive Center for Disease Control and Prevention, Hohhot, Inner Mongolia 010031, China;
2. School of Public Health, Jilin University, Changchun, Jilin 130021, China;
3. Molidawa Daur Autonomous Banner Center for Disease Control and Prevention, Hulun Buir, Inner Mongolia 162850, China;
4. Bayannur Center for Disease Control and Prevention, Bayannur, Inner Mongolia 015000, China

Received date: 2021-12-18

Online published: 2022-06-11

Supported by

Science and Technology Program of Inner Mongolia Autonomous Region (No. 201802141); Natural Science Foundation of Inner Mongolia Autonomous Region of China (No. 2020MS08162)

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Abstract

Objective To investigate the epidemiological characteristics of hemorrhagic fever with renal syndrome (HFRS) and the epizootic situation in host animals in the Inner Mongolia Autonomous Region (Inner Mongolia), China, and to provide a basis for formulating relevant prevention and control strategies and measures. Methods The descriptive epidemiological method was used to analyze the data of HFRS epidemics in Inner Mongolia from 2016 to 2020 from the National Infectious Disease Report Information Management System. SPSS 22.0 software was used to perform the rank sum test, linear correlation analysis, regression analysis, and cluster analysis. Results From 2016 to 2020, a total of 572 cases were reported in 9 leagues/cities of Inner Mongolia, including 5 deaths, with an incidence rate of 0.45/100 000 and a mortality rate of 3.96×10^-3/100 000. The epidemics of HFRS peaked in autumn to winter, and mainly affected the population aged between 25 and 54 years. Farmers accounted for 62.24% of the total cases. The ratio of male to female was 3.43:1. High incidence areas were mainly concentrated in Hulun Buir in eastern Mongolia, where the cases accounted for 67.66% of the total number. The mean inapparent infection rate of HFRS was 6.06% among people in Bayannur. The virus-carrying rate of rodents was 10.34% in Morin Dawa Daur Autonomous Banner. Conclusion The epidemic situation of HFRS in Inner Mongolia from 2016 to 2020 was generally milder than that in the last five years, but Hulun Buir is still in a relatively severe situation, requiring enhanced effective strategies and measures to control the epidemic.

Key words： Inner Mongolia Autonomous Region; Hemorrhagic fever with renal syndrome; Epidemiological characteristics

Cite this article

ZHANG Jing, ZHANG Yu-feng, LIU Zhong-min, HE Ling-ling, NAN Xiao-wei, JIANG Xiao-feng . Epidemiological characteristics of hemorrhagic fever with renal syndrome and host animal surveillance analysis in Inner Mongolia Autonomous Region, China, 2016-2020[J]. Chinese Journal of Vector Biology and Control, 2022 , 33(3) : 387 -393 . DOI: 10.11853/j.issn.1003.8280.2022.03.014

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