1. Department of Bacteriology I; National Institute of Infectious Diseases; Toyama 1-23-1, Shinjuku-ku Tokyo 162-8640
2. Tokyo Metropolitan Institute of Public Health; Hyakunin-cho 3-24-1, Shinjuku-ku Tokyo 169-0073
3. Aichi Prefectural Institute of Public Health; Nagare 7-6, Tsuji-machi, Kita-ku, Nagoya-shi Aichi 462-8576
4. Saga Prefectural Center of Public Health and Pharmaceutical Research; Hachonawate-machi 1-20, Saga-shi Saga 849-0925
5. Saitama Institute of Public Health; Ewai 410-1, Yoshimi-machi, Hiki-gun Saitama 338-0824
6. Yokosuka Institute of Public Health; Hinode-cho 2-14, Yokosuka-shi Kanagawa 238-0006
7. Oita Prefectural Institute of Health and Environment; Takae-nishi 2-8, Oita-shi Oita 870-1117
8. Kagoshima Prefectural Institute for Environmental Research and Public Health; Kinko-cho 11-40, Kagoshima-shi Kagoshima 892-0836
9. Toyama Institute of Health; Taikoyama 17-1, Imizu-shi Toyama 939-0363
10. Akita Prefectural Institute of Public Health; Senshukubota-machi 6-6, Akita-shi Akita 010-0874
11. Chubu Airport Quarantine Branch; Centrair 1-1, Tokoname-shi Aichi 479-0881 Japan
12. Department of Medical Sciences; National Institute of Health; 88/7 Tiwanond Road, A-Muang Nonthaburi 11000 Thailand