1. Division of Infectious Diseases, Department of Internal Medicine, Korea University College of Medicine, Seoul, Korea.
2. Department of Pediatrics, Hallym University College of Medicine, Chuncheon, Korea.
3. Department of Infectious Diseases, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea.
4. Division of Infectious Diseases, Department of Internal Medicine, Sahmyook Medical Center, Seoul, Korea.
5. Department of Pediatrics, Pusan National University School of Medicine, Busan, Korea.
6. Division of Infectious Diseases, Department of Internal Medicine, Soonchunhyang University Seoul Hospital, Soonchunhyang University College of Medicine, Seoul, Korea.
7. Department of Pediatrics, Eulji University College of Medicine, Daejeon, Korea.
8. Department of Internal Medicine, Kyung Hee University Hospital, Kyung Hee University School of Medicine, Seoul, Korea.
9. Division of Infectious Diseases, Department of Internal Medicine, Kyungpook National University, School of Medicine, Kyungpook National University Hospital, Daegu, Korea.
10. Global Studies Institute, University of Geneva, Geneva, Swiss.
11. Department of Internal Medicine, Chungbuk National University College of Medicine, Cheongju, Korea.
12. Gyeonggi Infectious Disease Control Center, Suwon, Korea.
13. Division of Infectious Diseases, Department of Internal Medicine, National Medical Center, Seoul, Korea.
14. Department of Infectious Diseases, Ajou University School of Medicine, Suwon, Korea.
15. Division of Pediatric Infectious Diseases, Seoul National University Children's Hospital, Seoul National University College of Medicine, Seoul, Korea.
16. Division of Infectious Diseases, Department of Internal Medicine, Ewha Womans University College of Medicine, Seoul, Korea.
17. Institut Pasteur Korea, Seongnam, Korea.