1. R & D Department, Japan BCG Laboratory, 3-1-5 Matsuyama, Kiyose, Tokyo 204-0022, Japan
2. Tsukuba Primate Research Center, National Institute of Biomedical Innovation, 1-1 Hachimandai, Tsukuba, Ibaraki 305-0843, Japan
3. Department of Immunoregulation, Mie University Graduate School of Medicine, Tsu City, Mie Prefecture 514-8507, Japan