1. Division of Infectious Diseases, Department of Internal Medicine, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
2. Vaccine Bio Research Institute, The Catholic University of Korea, Seoul, Republic of Korea
3. Catholic Hematology Hospital, Seoul, Republic of Korea
4. Occupational and Environmental Medicine, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
5. Department of Laboratory Medicine, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea