Corresponding Author

Division of Infectious Diseases, Advanced Clinical Research Center, The Institute of Medical Science, The University of Tokyo, Tokyo, Japan

Department of Infectious Diseases and Applied Immunology, Hospital of the Institute of Medical Science, The University of Tokyo, Tokyo, Japan

Correspondence

Takeya Tsutsumi, Division of Infectious Diseases, Advanced Clinical Research Center, The Institute of Medical Science, The University of Tokyo 4-6-1, Shirokanedai Minato-ku, Tokyo 108-8639 Japan Phone: +81-3-5449-5338, Fax: +81-3-5449-5427

Email: tsutsumi@ims.u-tokyo.ac.jp

Hiroshi Yotsuyanagi, Division of Infectious Diseases, Advanced Clinical Research Center, The Institute of Medical Science, The University of Tokyo 4-6-1, Shirokanedai Minato-ku, Tokyo 108-8639 Japan Phone: +81-3-5449-5338, Fax: +81-3-5449-5427

Email: yotsudid@ims.u-tokyo.ac.jp