1. Laboratory of Vaccinology and Applied Immunology, Kanazawa University School of Pharmacy, Ishikawa, Japan
2. Department of Global Infectious Diseases, Graduate School of Medical Sciences, Kanazawa University, Ishikawa, Japan
3. Department of Radiology, Faculty of Medicine, Academic Assembly, University of Toyama, Toyama, Japan
4. Division of Molecular Virology, Institute of Immunological Science, Hokkaido University, Sapporo, Japan