1 Division of Vaccine Science, Department of Microbiology and Immunology, The Institute of Medical Science, The University of Tokyo, Tokyo, Japan.
2 International Vaccine Design Center, The Institute of Medical Science, The University of Tokyo, Tokyo, Japan.
3 Center for Vaccine Adjuvant Research, National Institutes of Biomedical Innovation, Health and Nutrition, Osaka, Japan.
4 Division of Vaccine Science, Department of Microbiology and Immunology, The Institute of Medical Science, The University of Tokyo, Tokyo, Japan. kenishii@ims.u-tokyo.ac.jp.
5 International Vaccine Design Center, The Institute of Medical Science, The University of Tokyo, Tokyo, Japan. kenishii@ims.u-tokyo.ac.jp.
6 Center for Vaccine Adjuvant Research, National Institutes of Biomedical Innovation, Health and Nutrition, Osaka, Japan. kenishii@ims.u-tokyo.ac.jp.