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Analysis of epidemiology characteristics of norovirus among diarrheal outpatients in 27 provinces in China, 2009-2013

Analysis of epidemiology characteristics of norovirus among diarrheal outpatients in 27 provinces in China, 2009-2013
Analysis of epidemiology characteristics of norovirus among diarrheal outpatients in 27 provinces in China, 2009-2013
Objective: to investigate the epidemiology characteristics of norovirus among diarrheal outpatients in China.

Methods: diarrhea cases were monitored at emergency/outpatient departments at 173 hospitals in 27 provinces of China,with clinical and epidemiological data,and fecal specimens collected and sent to 58 network-laboratories to detect norovirus by RT-PCR method,and to analyze the positive rate of norovirus in various regions,population and time during 2009-2013.

Results: 11.6? of the 34 031 diarrheal cases under surveillance were found with norovirus.Age group of 6-23 month-old children and that of people over 45 years old were found with the highest positive percentage,13.7? and 12.4? respectively.Positive percentage of norovirus peaks in autumn and winter in a year; it peaks in mid-temperate zones (10.7?) and warm-temperate zones (11.6?) in winter.It peaks in sub-tropical zones in autumn (14.3?).The most prevalent genogroups detected were norovirus G ?,accounting for 89.9? of identified strains.

Conclusion: norovirus affects all ages and was most prevalent in children and the elderly among diarrhea outpatients.Norovirus' positive percentage showed strong seasonal pattern,and peaks at different times of a year in different climate zones of China.Since no effective preventive measures existed,further study on norovirus epidemiology and intervention strategies should be conducted in future
0254-6450
199-205
Yu, Jianxing
992198dd-6055-4905-ab28-11ced790c57c
Lai, Shengjie
b57a5fe8-cfb6-4fa7-b414-a98bb891b001
Wang, Xin
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Liao, Qiaohong
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Feng, Luzhao
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Ran, Lu
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Xu, Wenbo
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Qiu, Yanzi
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Zhang, Zike
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Li, Mengfeng
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Wu, Jianguo
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Liu, Wei
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Yan, Zhenghong
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Chen, Yu
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Zhao, Shiwen
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Wang, Xinhua
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Zhao, Zhuo
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Yu, Hongjie
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Jing, Huaiqi
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Li, Zhongjie
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Yang, Weizhong
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Yu, Jianxing
992198dd-6055-4905-ab28-11ced790c57c
Lai, Shengjie
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Wang, Xin
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Liao, Qiaohong
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Feng, Luzhao
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Ran, Lu
c57057b5-d8cb-49c3-83c4-f91fd7b10e2d
Xu, Wenbo
0a61a899-231f-474c-aca6-74abc96d5cbc
Qiu, Yanzi
0177337d-54bb-4fdc-a411-b2ff6e04ff84
Zhang, Zike
85c05276-59dd-4033-82c9-4d33e872906b
Li, Mengfeng
e2037ad9-9772-45a8-9c63-bc7a38b7c0ad
Wu, Jianguo
ac62a636-3c48-4a39-8eb2-04156a2b4409
Liu, Wei
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Yan, Zhenghong
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Chen, Yu
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Zhao, Shiwen
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Wang, Xinhua
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Zhao, Zhuo
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Yu, Hongjie
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Jing, Huaiqi
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Li, Zhongjie
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Yang, Weizhong
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Yu, Jianxing, Lai, Shengjie, Wang, Xin, Liao, Qiaohong, Feng, Luzhao, Ran, Lu, Xu, Wenbo, Qiu, Yanzi, Zhang, Zike, Li, Mengfeng, Wu, Jianguo, Liu, Wei, Yan, Zhenghong, Chen, Yu, Zhao, Shiwen, Wang, Xinhua, Zhao, Zhuo, Yu, Hongjie, Jing, Huaiqi, Li, Zhongjie and Yang, Weizhong (2015) Analysis of epidemiology characteristics of norovirus among diarrheal outpatients in 27 provinces in China, 2009-2013. Chinese Journal of Epidemiology, 36 (3), 199-205. (doi:10.3760/cma.j.issn.0254-6450.2015.03.003).

Record type: Article

Abstract

Objective: to investigate the epidemiology characteristics of norovirus among diarrheal outpatients in China.

Methods: diarrhea cases were monitored at emergency/outpatient departments at 173 hospitals in 27 provinces of China,with clinical and epidemiological data,and fecal specimens collected and sent to 58 network-laboratories to detect norovirus by RT-PCR method,and to analyze the positive rate of norovirus in various regions,population and time during 2009-2013.

Results: 11.6? of the 34 031 diarrheal cases under surveillance were found with norovirus.Age group of 6-23 month-old children and that of people over 45 years old were found with the highest positive percentage,13.7? and 12.4? respectively.Positive percentage of norovirus peaks in autumn and winter in a year; it peaks in mid-temperate zones (10.7?) and warm-temperate zones (11.6?) in winter.It peaks in sub-tropical zones in autumn (14.3?).The most prevalent genogroups detected were norovirus G ?,accounting for 89.9? of identified strains.

Conclusion: norovirus affects all ages and was most prevalent in children and the elderly among diarrhea outpatients.Norovirus' positive percentage showed strong seasonal pattern,and peaks at different times of a year in different climate zones of China.Since no effective preventive measures existed,further study on norovirus epidemiology and intervention strategies should be conducted in future

Text
2009-2013年中国27省(市、自治区)门诊腹泻病例诺如病毒流行特征分析.pdf - Version of Record
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Published date: March 2015
Organisations: WorldPop, Population, Health & Wellbeing (PHeW)

Identifiers

Local EPrints ID: 376728
URI: http://eprints.soton.ac.uk/id/eprint/376728
ISSN: 0254-6450
PURE UUID: 5a827a9e-6572-4448-8154-ba338368c3cb
ORCID for Shengjie Lai: ORCID iD orcid.org/0000-0001-9781-8148

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Date deposited: 08 May 2015 10:29
Last modified: 14 May 2024 01:55

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Contributors

Author: Jianxing Yu
Author: Shengjie Lai ORCID iD
Author: Xin Wang
Author: Qiaohong Liao
Author: Luzhao Feng
Author: Lu Ran
Author: Wenbo Xu
Author: Yanzi Qiu
Author: Zike Zhang
Author: Mengfeng Li
Author: Jianguo Wu
Author: Wei Liu
Author: Zhenghong Yan
Author: Yu Chen
Author: Shiwen Zhao
Author: Xinhua Wang
Author: Zhuo Zhao
Author: Hongjie Yu
Author: Huaiqi Jing
Author: Zhongjie Li
Author: Weizhong Yang

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