○Ryoya Tsujikawa¹, Yuki Funahashi¹, Torahiko Okubo¹, Jeewan Thapa², Hiroyuki Yamaguchi¹ (¹Fac. Health Science, Hokkaido Univ., ²Res. Cent. Zoonosis Control Hokkaido Univ.)

○Takashi Matsuba¹, Gaowa Bai², Toshiro Niki³, Toshio Hattori² (¹Div. Bacteriol., Fac. Med., Tottori Univ., ²Dept. Health Sci. & Soc. Welfare, Kibi Int. Univ., ³Dept. Immunol., Fac. Med. Kagawa Univ.)