Accepted Article This article has been accepted for publication and undergone full peer review but has not been through the copyediting, typesetting, pagination and proofreading process, which may lead to differences between this version and the Version of Record. Please cite this article as doi: 10.1111/lam.12750 This article is protected by copyright. All rights reserved. Article type : Original Article Distribution of norovirus genotypes and subtypes in river water by ultra-deep sequencing-based analysis M. Boonchan 1,# , K. Motomura 1,2,#,* , K. Inoue 1,2 , H. Ode 3 , P.Y. Chu 4 , M. Lin 4 , Y. Iwatani 3 , K. Ruchusatsawat 5 , R. Guntapong 5 , R. Tacharoenmuang 5 , S. Chantaroj 5 , M. Tatsumi 1,2 , N. Takeda 1,2 , and S. Sangkitporn 5 1 Thailand-Japan Research Collaboration Center on Emerging and Re-emerging Infections (RCC-ERI), Nonthaburi, Thailand 2 Research Institute of Microbial Diseases, Osaka University, Suita, Japan 3 National Hospital Organization Nagoya Medical Center, Nagoya, Japan 4 Department of Medical Laboratory Science and Biotechnology, Kaohsiung Medical University, Kaohsiung, Taiwan 5 National Institute of Health, Department of Medical Science, Ministry of Public Health, Nonthaburi, Thailand # These authors contributed equally to this work.