Yumiko Tashiro, Keitarou Saiki, Yuki Yamanaka, Yuiko Ishikawa, Naoto Hayashida, Yukihiro Takahashi (Dept. Microbiol., Nippon Dent. Univ. Sch. Life Dentistry at Tokyo)

Yuko Tanishita¹, Hisateru Sekiya¹, Gabriel Nunez², Akihiko Yoshimura¹, Hideki Hara¹ (¹Dept. Microbiol. Immunol., Sch. Med., Keio Univ., ²Dept. Pathol., Sch. Med., Univ. Mich.)

Takemasa Nakamura¹, Ryo Ikegaya¹, Takashi Shimizu¹, Kenta Watanabe¹, Akihiko Uda², Masahisa Watarai¹ (¹Lab. Vet. Pub. Hlth., Jnt. Fac. Vet. Med., Yamaguchi Univ., ²Dept. Vet. Sci., NIID)

Daiki Takano, Chikara Kaito, Kazuyuki Furuta (Grad. Sch. of Med., Dent., and Pharm. Sci., Okayama Univ.)

Kozue Sato¹, Yumi Kumagai², Tetsuya Hayashi³, Ai Takano⁴, Makoto Ohnishi¹, Hiroki Kawabata¹ (¹Dept. Bacteriol. l, NIID, ²Dept. Biochem. System Biomed., Grad. Sch. Med., Juntendo Univ, ³Dept. Bacteriol., Fac. Med. Sci., Kyushu Univ., ⁴Dept. Vet. Med., Joint Fac. Vet. Med., Yamaguchi Univ.)

Sohei Nakano^1,2, Seiji Yamasaki^1,2, Atsushi Taguchi^1,2, Kunihiko Nishino^1,2 (¹Grad. Sch. Pharm. Sci., Osaka Univ., ²SANKEN., Osaka Univ.)