Phylogenic Analysis of Echovirus Type 30 Isolated from a Large Epidemic of Aseptic Meningitis in Japan during 1997-1998

  • Yoshida Hiromu
    Department of Virology II, National Institute of Infectious Diseases, Japan
  • Hong Zheng
    Department of Virology II, National Institute of Infectious Diseases, Japan
  • Yoneyama Tetsuo
    Department of Virology II, National Institute of Infectious Diseases, Japan
  • Yoshii Kumiko
    Department of Virology II, National Institute of Infectious Diseases, Japan
  • Shimizu Hiroyuki
    Department of Virology II, National Institute of Infectious Diseases, Japan
  • Ota Kozo
    Fukuoka City Institute for Hygiene and Environment, Japan
  • Murakami Tsukasa
    Osaka City Institute of Public Health and Environmental Science, Japan
  • Iritani Nobuhiro
    Osaka City Institute of Public Health and Environmental Science, Japan
  • Tsuchiya Misako
    Fukushima Prefectural Institute of Public Health and Environmental Science, Japan
  • Takao Shinichi
    Hiroshima Prefectural Institute of Public Health and Environmental Science, Japan
  • Uchida Kazue
    Saitama Institute of Public Health, Japan
  • Yamanishi Shigeki
    Kagawa Prefectural Institute of Public Health, Japan
  • Hamazaki Mitsuhiro
    Fukuoka Institute of Health and Environmental Sciences, Japan
  • Yoshino Shuji
    Miyazaki Prefectural Institute of Public Health and Environmental Science, Japan
  • Oseto Mitsuaki
    Ehime Prefectural Institute of Public Health and Environmental Science, Japan
  • Abe Katsuhiko
    Hiroshima City Institute of Public Health, Japan
  • Hamano Masako
    Okayama Prefectural Institute of Public Health and Environmental Science, Japan
  • Sakae Kenji
    Aichi Prefectural Institute of Public Health, Japan
  • Tsuzuki Hideaki
    Aichi Prefectural Institute of Public Health, Japan
  • Chiya Seizo
    Kochi Prefectural Institute of Public Health, Japan
  • Onishi Hajime
    Ishikawa Prefectural Institute of Public Health and Environmental Science, Japan
  • Fujimoto Tsuguto
    Hyogo Prefectural Institute of Public Health, Japan
  • Munemura Tetsuya
    Yokohama City Institute of Public Health, Japan
  • Kawamoto Ayumi
    Tottori Prefectural Public Health Laboratory, Japan
  • Yokota Yoko
    Shiga Prefectural Institute of Public Health and Environmental Science, Japan
  • Ando Shuji
    Toyama Prefectural Institute of Public Health, Japan
  • Sekine Hiromasa
    Tokyo Metropolitan Research Laboratory of Public Health, Japan
  • Akami Masayuki
    Gunma Prefectural Institute of Public Health and Environmental Sciences, Japan
  • Iizuka Setsuko
    Shimane Prefectural Institute of Public Health and Environmental Science, Japan
  • Hagiwara Akio
    Department of Virology II, National Institute of Infectious Diseases, Japan
  • Miyamura Tatsuo
    Department of Virology II, National Institute of Infectious Diseases, Japan

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<p>During 1997 to 1998, a nationwide epidemic of aseptic meningitis occurred in Japan. More than 4,500 isolates from patients with aseptic meningitis were identified as echovirus type 30. To investigate the character of these isolates, we examined the nucleotide sequences of thirty-seven geographical representatives and compared them with 50 strains isolated during the past 20 years. The phylogenic analysis used partial sequences from either the VP1 or VP4-VP2 region of the viral capsid. This analysis revealed that the isolates were divided into six genomic groups. All isolates identified during 1997-1998 belonged to only two genomic groups; these two groups are thought to be the causative viral agents involved in the recent epidemic.<tt> </tt></p>

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