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High transmissibility of norovirus among infants and school children during the 2016/17 season in Osaka, Japan
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View Affiliations Hide AffiliationsRyosuke Omoriomori czc.hokudai.ac.jp
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Citation style for this article: . High transmissibility of norovirus among infants and school children during the 2016/17 season in Osaka, Japan. Euro Surveill. 2018;23(6):pii=18-00029. https://doi.org/10.2807/1560-7917.ES.2018.23.6.18-00029 Received: 18 Jan 2018; Accepted: 08 Feb 2018
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Abstract
The number of person-to-person transmitted norovirus cases (n = 4,712) in school children in Osaka, Japan, during 2016/17 was the largest since 2012/13. Norovirus outbreaks were reported by 101 schools including 53 nursery schools (1,927 cases), 18 kindergartens (1,086 cases) and 30 elementary schools (1,699 cases). The dominant genotype among outbreaks was GII.P16-GII.2 (57.4%; 58/101), followed by GII.P2-GII.2 (8.9%; 9/101) and GII.P7-GII.6 (5.9%; 6/101). GII.4 was not detected despite dominance in previous years.
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