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Volume 24, Number 5—May 2018
Dispatch

Foodborne Outbreaks Caused by Human Norovirus GII.P17-GII.17–Contaminated Nori, Japan, 2017

Naomi SakonComments to Author , Kenji Sadamasu, Takayuki Shinkai, Yousuke Hamajima, Hideaki Yoshitomi, Yuki Matsushima, Rika Takada, Fumio Terasoma, Asako Nakamura, Jun Komano, Koo Nagasawa, Hideaki Shimizu, Kazuhiko Katayama, and Hirokazu Kimura
Author affiliations: Osaka Institute of Public Health, Osaka, Japan (N. Sakon, R. Takada); Tokyo Metropolitan Institute of Public Health, Tokyo, Japan (K. Sadamasu, T. Shinkai); Wakayama Prefectural Research Center of Environment and Public Health, Wakayama, Japan (Y. Hamajima, F. Terasoma); Fukuoka Institute of Health and Environmental Sciences, Dazaifu, Japan (H. Yoshitomi, A. Nakamura); Kawasaki City Institute for Public Health, Kawasaki City, Japan (Y. Matsushima, H. Shimizu); National Hospital Organization Nagoya Medical Center, Nagoya, Japan (J. Komano); Chiba University, Chiba, Japan (K. Nagasawa); Kitasato University, Tokyo (K. Katayama); Gunma Paz University, Takasaki, Japan (H. Kimura); National Institute of Infectious Diseases, Tokyo (H. Kimura)

Main Article

Table

Genetic analysis of norovirus GII.P17-GII.17 isolates detected in clinical specimens from outbreaks during the 2016–17 endemic season, Japan*

Outbreak or strain GenBank accession nos. Isolation date Identity with outbreak 1 strain, %
RdRp, 1,530 nt VP1, 1,620 nt
Outbreak 1 LC318755–LC318758 Jan 2017 NA NA
Outbreak 2 LC258403† Feb 2017 100 100
Outbreak 6 LC311767–LC311773 Jan 2017 100 100
Outbreak 7 LC318751–LC318754 Feb 2017 100 100
Outbreak A:16–064 LC318745 May 2016 99.6 99.9
Outbreak B:16–299 LC318746 Nov 2016 99.9 99.9
Outbreak C:16–292 LC318750 Nov 2016 99.5 99.6
Outbreak C:16–303 LC318749 Nov 2016 99.7 ND
Outbreak D:16–311 LC318747 Dec 2016 99.9 99.8
Outbreak D:16–315 LC318748 Dec 2016 99.8 99.6
GII.17 Kawasaki308 LC037415 Feb 2015 99.6 99.9

*NA, not applicable; ND, not done.
†This isolate was registered as a representative strain of outbreaks 2–5 because all the isolates from outbreaks 2–5 showed 100% sequence identity.

Main Article

Page created: April 17, 2018
Page updated: April 17, 2018
Page reviewed: April 17, 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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