[1] Hokkaido Univ, Res Ctr Zoonosis Control, Sapporo, Hokkaido 060, Japan
[2] Sukraraj Trop & Infect Dis Hosp, Kathmandu, Nepal
[3] Everest Int Clin & Res Ctr, Kathmandu, Nepal
[4] Tribhuban Univ, Dept Microbiol, Kathmandu, Nepal
[5] Osaka Prefectural Inst Publ Hlth, Dept Infect Dis, Osaka, Japan
[6] Asahi Kasei Co Ltd, Shizuoka, Japan
[7] Anandaban Hosp, Dept Res & Biotechnol, Kathmandu, Nepal
[8] Osaka Univ, Res Collaborat Ctr Emerging & Reemerging Infect, Sect Bacterial Infect, Nonthaburi, Thailand
[9] Natl Inst Hlth, Dept Med Sci, Minist Publ Hlth, Nonthaburi, Thailand