1. Department of Emergency and Critical Care Medicine, Keio University School of Medicine
2. Department of Acute Medicine, Kawasaki Medical School
3. Department of Infectious Diseases, International University of Health and Welfare School of Medicine
4. Division of Emergency and Critical Care Medicine, Tohoku University Graduate School of Medicine
5. Infection Control Team, Nippon Medical School Hospital
6. Division of Infectious Diseases, National Center for Child Health and Development
7. Infection Control Team, Nippon Medical School Musashi Kosugi Hospital
8. Division of Comprehensive Medicine, Tohoku University Graduate School of Medicine
9. Department of Internal Medicine, Chugoku Central Hospital
10. Division of Nursing, Osaka University Hospital
11. National Hospital Organization Kumamoto Medical Center