Juntendo University, Juntendo University, Juntendo University, Juntendo University, Juntendo University - Department of Clinical Laboratory, The University of Osaka, National Institute of Infectious Diseases - Department of Pathology, National Institute of Infectious Diseases - Department of Pathology, Juntendo University, Juntendo University, Juntendo University, Juntendo University, National Institute of Infectious Diseases, Juntendo University - Department of Respiratory Medicine, The University of Osaka, Juntendo University - Department of Clinical Laboratory and Juntendo University - Department of General Medicine