1. Division of Mucosal Immunology, IMSUT Distinguished Professor Unit, Institute of Medical Science, University of Tokyo, Tokyo, Japan
2. Department of Otorhinolaryngology-Head and Neck Surgery, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
3. Division of Gastroenterology, Department of Medicine, CU-UCSD Center for Mucosal Immunology, Allergy and Vaccines (CU-UCSD cMAV), University of California, San Diego, CA, USA
4. Division of Mucosal Vaccine, Research and Development Center for Mucosal Vaccines, Institute of Medical Science, The University of Tokyo, Tokyo, Japan
5. Department of Immunology, Graduate School of Medicine, Chiba University, Chiba, Japan