Epidemiological characteristics of 14 clusters and outbreaks of Norovirus infection in Nan an District of Chongqing in 2018
10.16835/j.cnki.1000-9817.2021.06.027
- VernacularTitle:重庆市南岸区2018年14起诺如病毒疫情流行病特征分析
- Author:
TANG Xiaoqing, ZHU Ling,WU Xiaohua, ZENG Dewei, LUO Chunyu, QIN Jing, DENG Wenwen
1
Author Information
1. Department for Intectious Disease Prevention and Control, Center for Disease Control and Prevention of Nan an District, Chongqing(400067), China
- Publication Type:期刊文章
- Keywords:
Diarrhea;
Enterovirus infections;
Disease outbreaks;
Epidemiologic studies;
Students
- From:
Chinese Journal of School Health
2021;42(6):914-916
- CountryChina
- Language:Chinese
-
Abstract:
Objective:To analyze of epidemiological and etiological characteristics of 14 norovirus clusters or outbreak in Nan an District, for comprehensive prevention and control measures for norovirus infections in the region.
Methods:Data were collected from the emergency public health event management information system of China Disease Prevention and Control Information System, and were analyzed by using descriptive epidemiological method.
Results:In 2018, 14 cases of norovirus infection clusters and outbreaks were reported in Nan an District, accounting for 63.64% of the total number of incidents in the region. A total of 268 cases were reported, with an average incidence of 2.19%; the outbreak occurred mainly in November(n=6); kindergartens reported the most outbreak(n=7), followed by primary schools(n=5); the median duration of the outbreak was 2.80 days; and 14 outbreaks were caused by the GII-type genome of norovirus, with the main transmission routes being human-to-hnuman transmission.
Conclusion:The prevalence of norovirus outbreaks tends to be higher in schools, it is necessary to strengthen the monitoring of vomiting and diarrhea symptoms in collective units such as schools, and efforts should be promoted for implementation of all levels of prevention and control measures in school.
