Epidemiological characteristics of 14 clusters and outbreaks of Norovirus infection in Nan'an District of Chongqing in 2018

TANG Xiaoqing; ZHU Ling; WU Xiaohua; ZENG Dewei; LUO Chunyu; QIN Jing; DENG Wenwen

doi:10.16835/j.cnki.1000-9817.2021.06.027

Volume 42 Issue 6

Jun. 2021

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TANG Xiaoqing, ZHU Ling, WU Xiaohua, ZENG Dewei, LUO Chunyu, QIN Jing, DENG Wenwen. Epidemiological characteristics of 14 clusters and outbreaks of Norovirus infection in Nan'an District of Chongqing in 2018[J]. CHINESE JOURNAL OF SCHOOL HEALTH, 2021, 42(6): 914-916. doi: 10.16835/j.cnki.1000-9817.2021.06.027

Citation:

TANG Xiaoqing, ZHU Ling, WU Xiaohua, ZENG Dewei, LUO Chunyu, QIN Jing, DENG Wenwen. Epidemiological characteristics of 14 clusters and outbreaks of Norovirus infection in Nan'an District of Chongqing in 2018[J]. CHINESE JOURNAL OF SCHOOL HEALTH, 2021, 42(6): 914-916. doi: 10.16835/j.cnki.1000-9817.2021.06.027

Citation:

TANG Xiaoqing, ZHU Ling, WU Xiaohua, ZENG Dewei, LUO Chunyu, QIN Jing, DENG Wenwen. Epidemiological characteristics of 14 clusters and outbreaks of Norovirus infection in Nan'an District of Chongqing in 2018[J]. CHINESE JOURNAL OF SCHOOL HEALTH, 2021, 42(6): 914-916. doi: 10.16835/j.cnki.1000-9817.2021.06.027

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Epidemiological characteristics of 14 clusters and outbreaks of Norovirus infection in Nan'an District of Chongqing in 2018

doi: 10.16835/j.cnki.1000-9817.2021.06.027

1.
Department for Intectious Disease Prevention and Control, Center for Disease Control and Prevention of Nan'an District, Chongqing(400067), China

Received Date: 2020-09-26
Rev Recd Date: 2020-10-20

Available Online: 2021-06-22

Publish Date: 2021-06-25

Abstract

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.
- Diarrhea,
- Enterovirus infections,
- Disease outbreaks,
- Epidemiologic studies,
- Students

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References(11)

References

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