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Volume 23, Number 2—February 2017

Dispatch

Incidence of Norovirus-Associated Diarrhea, Shanghai, China, 2012–2013

Jianxing Yu1, Chuchu Ye1, Shengjie Lai1, Weiping Zhu, Zike Zhang, Qibin Geng, Caoyi Xue, Weizhong Yang, Shuyu Wu, Aron J. Hall, Qiao SunComments to Author , and Zhongjie LiComments to Author 
Author affiliations: Division of Infectious Disease, Key Laboratory of Surveillance and Early-Warning on Infectious Disease, Chinese Center for Disease Control and Prevention, Beijing, China (J. Yu, S. Lai, Z. Zhang, Q. Geng, W. Yang, Z. Li); Ministry of Health Key Laboratory of Systems Biology of Pathogens and Dr. Christophe Mérieux Laboratory, CAMS-Fondation Mérieux, Institute of Pathogen Biology, Academy of Medical Sciences of China and Peking Union Medical College, Beijing (J. Yu); Research Base of Key Laboratory of Surveillance and Early-Warning on Infectious Disease, Pudong New Area Center for Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Shanghai, China (C. Ye, W. Zhu, C. Xue, Q. Sun); State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China (Z. Zhang); State Key Laboratory of Virology, Wuhan University College of Life Sciences, Wuhan, China (Q. Geng); Centers for Disease Control and Prevention, Beijing, China (S. Wu); Centers for Disease Control and Prevention, Atlanta, Georgia, USA (A.J. Hall)

Main Article

Table 1

Norovirus test results among diarrhea case-patients, by sex, surveillance year, and age group, Pudong New Area, Shanghai, China, 2012–2013

Variable Positive, no. (%) Negative, no. (%) p value
Total
771 (100)
3,106 (100)

Sex 0.278
M 426 (21) 1,646 (79)
F
345 (19)
1,460 (81)

Surveillance year 0.074
2012 422 (19) 1,813 (81)
2013
349 (21)
1,293 (79)

Age group <0.001
0–11 mo 30 (10) 277 (90)
12–23 mo 23 (16) 124 (84)
24–59 mo 28 (13) 184 (87)
5–24 y 69 (18) 306 (82)
25–44 y 268 (21) 1,028 (79)
45–64 y 263 (24) 828 (76)
>65 y 90 (20) 359 (80)

Main Article

1These authors contributed equally to this article.

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