1 Department of Immunology, National Institute of Infectious Diseases, Tokyo, 162-8640, Japan.
2 Department of Life Science and Medical Bioscience, Waseda University, Tokyo, 162-8480, Japan.
3 Center for Research and Development of Medical Diagnostic Laboratories (CMDL), Faculty of Associated Medical Sciences, Khon Kaen University, 40002, Khon Kaen, Thailand.
4 Influenza Virus Research Center, National Institute of Infectious Diseases, Tokyo, 208-0011, Japan.
5 Institute for Immunology and Informatics, University of Rhode Island, Providence, RI, USA.
6 EpiVax Inc, Providence, RI, USA.
7 Department of Infection Control Science, Graduate School of Medicine, Juntendo University, Tokyo, 113-8421, Japan.
8 Hagiwara Clinic, Tokyo, 173-0016, Japan.
9 Department of Immunology, National Institute of Infectious Diseases, Tokyo, 162-8640, Japan. ytakahas@niid.go.jp.