1. Research Center for Drug and Vaccine Development, National Institute of Infectious Diseases, Tokyo, Japan.
2. KOTAI Biotechnologies Inc., Osaka, Japan.
3. Tokyo Shinagawa Hospital, Tokyo, Japan.
4. Laboratory of Lymphocyte Differentiation, WPI Immunology Frontier Research Center, Osaka University, Osaka, Japan.
5. Shionogi & Co. Ltd., Osaka, Japan.
6. Department of Virology I, National Institute of Infectious Diseases, Tokyo, Japan.
7. Department of Life Science and Medical Bioscience, Waseda University, Tokyo, Japan.
8. Laboratory of Viral Infection, Ōmura Satoshi Memorial Institute Graduate School of Infection Control Sciences, Kitasato University, Tokyo, Japan.
9. Center for Infectious Diseases Education and Research, Osaka University, Osaka, Japan.