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Volume 24, Number 4—April 2018
Dispatch

Bimodal Seasonality and Alternating Predominance of Norovirus GII.4 and Non-GII.4, Hong Kong, China, 2014–20171

Martin Chi-Wai Chan, Kirsty Kwok, Lin-Yao Zhang, Kirran N. Mohammad, Nelson Lee2, Grace C.Y. Lui, E. Anthony S. Nelson, Raymond W.M. Lai, Ting F. Leung, and Paul K.S. ChanComments to Author 
Author affiliations: The Chinese University of Hong Kong, Hong Kong, China

Main Article

Figure

Bimodal seasonality and alternating predominance of norovirus GII.4 and non-GII.4 genotypes in Hong Kong, China, 2014–2017. A) Temporal distribution of ages of patients hospitalized for norovirus gastroenteritis. Each dot represents 1 patient. Red horizontal bars indicate medians. B) Epidemic curve during the study period. All cases shown are stratified by norovirus viral protein 1 genotype. Pink shading along baseline indicates months during which the median age of hospitalized case-patients wa

Figure. Bimodal seasonality and alternating predominance of norovirus GII.4 and non-GII.4 genotypes in Hong Kong, China, 2014–2017. A) Temporal distribution of ages of patients hospitalized for norovirus gastroenteritis. Each dot represents 1 patient. Red horizontal bars indicate medians. B) Epidemic curve during the study period. All cases shown are stratified by norovirus viral protein 1 genotype. Pink shading along baseline indicates months during which the median age of hospitalized case-patients was >5 years.

Main Article

1Preliminary results from this study were presented at the 1st International Workshop on Gastroenteritis Viruses, September 14–15, 2017, Shanghai, China.

2Current affiliation: Faculty of Medicine and Dentistry, University of Alberta, Edmonton, Alberta, Canada.

Page created: March 19, 2018
Page updated: March 19, 2018
Page reviewed: March 19, 2018
The conclusions, findings, and opinions expressed by authors contributing to this journal do not necessarily reflect the official position of the U.S. Department of Health and Human Services, the Public Health Service, the Centers for Disease Control and Prevention, or the authors' affiliated institutions. Use of trade names is for identification only and does not imply endorsement by any of the groups named above.
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