Epidemiological analysis of aggregative vomiting and diarrhea outbreak in Jing'an District of Shanghai, 2017-2018
10.3969/j.issn.1006-2483.2020.01.021
- VernacularTitle:2017-2018年上海市静安区聚集性呕吐腹泻疫情流行病学分析
- Author:
Chunfang WU
1
,
2
;
Zhou ZHOU
1
,
2
;
Zhaoxiang MA
1
,
2
;
Jing WANG
1
,
2
;
Enguo LI
1
,
2
Author Information
1. Jing'
2. an District Center for Disease Control and Prevention，Shanghai 200072，China
- Publication Type:Journal Article
- Keywords:
Aggregative outbreak;
Vomiting and diarrhea;
Norovirus
- From:
Journal of Public Health and Preventive Medicine
2020;31(1):91-94
- CountryChina
- Language:Chinese
-
Abstract:
Objective To analyze the epidemiological characteristics of aggregative vomiting and diarrhea outbreak in Jing'an District of Shanghai in 2017 and 2018，and provide data support for further development of effective prevention and control measures. Methods A descriptive epidemiological method was used to analyze aggregative vomiting and diarrhea outbreak data in Jing'an District in 2017 and 2018. Results A total of 49 outbreaks were reported in Jing'an District in 2017 and 2018，involving 565 cases，with the overall attack rate of 1.89%. The median duration of the outbreak was 5 days and outbreaks mainly occurred in spring and autumn. The attack rate in kindergartens was higher than that in primary and secondary schools, while the total number of outbreak cases in kindergartens was less. The main clinical symptoms of the cases were vomiting, with a higher proportion than that of diarrhea and fever. The vomiting proportion was higher in kindergartens and elementary schools, while the diarrhea proportion was higher in middle schools. Conclusion There were some differences in the epidemic characteristics between kindergartens and primary and secondary schools, therefore different control measures should be adopted according to the characteristics of different institutions. The outbreaks were mainly spread through human-to-human transmission. Early detection and early reporting of epidemics in collective institutions had a positive impact on the control of the spread of the epidemic.
