Characterization of an unusual DS-1-like G8P[8] rotavirus strain from Japan in 2017: Evolution of emerging DS-1-like G8P[8] strains through reassortment

Hajime Kamiya, Ratana Tacharoenmuang, Tomihiko Ide, Manami Negoro, Takaaki Tanaka, Kazutoyo Asada, Haruna Nakamura, Katsumi Sugiura, Masakazu Umemoto, Haruo Kuroki, Hiroaki Ito, Shigeki Tanaka, Mitsue Ito, Saori Fukuda, Riona Hatazawa, Yuya Hara, Ratigorn Guntapong, Takayuki Murata, Kiyosu Taniguchi, Shigeru SugaTakashi Nakano, Koki Taniguchi, Satoshi Komoto

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

The emergence of unusual DS-1-like intergenogroup reassortant rotaviruses with a bovinelike G8 genotype (DS-1-like G8P[8] strains) has been reported in several Asian countries. During the rotavirus surveillance program in Japan in 2017, a DS-1-like G8P[8] strain (RVA/Human-wt/JPN/ SO1162/2017/G8P[8]) was identified in 43 rotavirus-positive stool samples. Strain SO1162 was shown to have a unique genotype constellation, including genes from both genogroup 1 and 2: G8-P[8]-I2-R2- C2-M2-A2-N2-T2-E2-H2. Phylogenetic analysis revealed that the VP1 gene of strain SO1162 appeared to have originated from DS-1-like G1P[8] strains from Thailand and Vietnam, while the remaining 10 genes were closely related to those of previously reported DS-1-like G8P[8] strains. Thus, SO1162 was suggested to be a reassortant strain that acquired the VP1 gene from Southeast Asian DS-1-like G1P[8] strains on the genetic background of co-circulating DS-1-like G8P[8] strains. Our findings provide important insights into the evolutionary dynamics of emerging DS-1-like G8P[8] strains.

Original languageEnglish
Pages (from-to)256-260
Number of pages5
JournalJapanese journal of infectious diseases
Volume72
Issue number4
DOIs
Publication statusPublished - 01-01-2019

All Science Journal Classification (ASJC) codes

  • Microbiology (medical)
  • Infectious Diseases

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    Kamiya, H., Tacharoenmuang, R., Ide, T., Negoro, M., Tanaka, T., Asada, K., Nakamura, H., Sugiura, K., Umemoto, M., Kuroki, H., Ito, H., Tanaka, S., Ito, M., Fukuda, S., Hatazawa, R., Hara, Y., Guntapong, R., Murata, T., Taniguchi, K., ... Komoto, S. (2019). Characterization of an unusual DS-1-like G8P[8] rotavirus strain from Japan in 2017: Evolution of emerging DS-1-like G8P[8] strains through reassortment. Japanese journal of infectious diseases, 72(4), 256-260. https://doi.org/10.7883/yoken.JJID.2018.484