1. Department of Infectious, Respiratory, and Digestive Medicine, Control and Prevention of Infectious Diseases, Faculty of Medicine, University of the Ryukyus, Japan
2. Research Division for Development of Anti-Infective Agents, Institute of Development, Aging and Cancer, Tohoku University, Japan
3. Department of Internal Medicine, Shinrakuen Hospital, Japan
4. Department of Clinical Infectious Diseases, School of Medicine, Showa University, Japan
5. Department of Internal Medicine 2, Oita University Faculty of Medicine, Japan
6. Department of Laboratory Medicine, Nagasaki University Hospital, Japan
7. Department of Infection Control and Laboratory Diagnostics, Internal Medicine, Tohoku University Graduate School of Medicine, Japan
8. Department of Infectious Diseases and Infection Control, Jikei University School of Medicine, Japan
9. Nagasaki University Hospital, Japan