1. Department of Respiratory Medicine Nagasaki University Nagasaki Japan
2. Division of Respirology, Rheumatology, Infectious Diseases, and Neurology Department of Internal Medicine Faculty of Medicine University of Miyazaki Miyazaki Japan
3. Department of Infection Control and Prevention Hyogo College of Medicine Nishinomiya Japan
4. Department of Clinical Infectious Diseases Aichi Medical University Nagakute Japan
5. Department of Infection Control Science Graduate School of Medicine Osaka City University Osaka Japan
6. Division of Medical and Environmental Safety Department of Infection Control and Prevention Kagoshima University Hospital Kagoshima Japan