Bimodal Seasonality and Alternating Predominance of Norovirus GII.4 and Non-GII.4, Hong Kong, China, 2014-2017 1

We report emerging subtropical bimodal seasonality and alternating predominance of norovirus GII.4 and non-GII.4 genotypes in Hong Kong. GII.4 predominated in summer and autumn months and affected young children, whereas emergent non-GII.4 genotypes predominated in winter months and affected all age...

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Published inEmerging infectious diseases Vol. 24; no. 4
Main Authors Chan, Martin Chi-Wai, Kwok, Kirsty, Zhang, Lin-Yao, Mohammad, Kirran N, Lee, Nelson, Lui, Grace C Y, Nelson, E Anthony S, Lai, Raymond W M, Leung, Ting F, Chan, Paul K S
Format Journal Article
LanguageEnglish
Published United States 17.04.2018
Subjects
non-GII.4
viruses
age distribution
Hong Kong
norovirus
China
GII.4
geographic hotspot
surveillance
vaccine strain
bimodal seasonality
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Summary:We report emerging subtropical bimodal seasonality and alternating predominance of norovirus GII.4 and non-GII.4 genotypes in Hong Kong. GII.4 predominated in summer and autumn months and affected young children, whereas emergent non-GII.4 genotypes predominated in winter months and affected all age groups. This highly dynamic epidemiology should inform vaccination strategies.
ISSN:1080-6059