[1] Osaka Inst Publ Hlth, Dept Environm Hlth, Higashinari Ku, 1-3-69 Nakamichi, Osaka 5370025, Japan
[2] Natl Inst Infect Dis, Pathogen Genom Ctr, Shinjuku Ku, 1-23-1 Toyama, Tokyo 1628640, Japan
[3] Rinku Gen Med Ctr, Div Gen Internal Med & Infect Dis, 2-23 Rinku Ourai Kita, Osaka 5988577, Japan
[4] Osaka Inst Publ Hlth, Dept Microbiol, Higashinari Ku, 1-3-69 Nakamichi, Osaka 5370025, Japan