1. Division of Infectious Diseases, Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea.
2. Department of Public Health Sciences, School of Medicine, University of Connecticut, CT, USA.
3. Artificial Intelligence and Big-Data Convergence Center, Gil Medical Center, Gachon University College of Medicine, Incheon, Korea.
4. Department of Preventive Medicine, Gachon University College of Medicine, Incheon, Korea.
5. Patient Management Team, Central Headquarters of COVID-19, Korea Disease Control and Prevention Agency, Cheongju, Korea.
6. Division of Immunization, Korea Disease Control and Prevention Agency, Cheongju, Korea.
7. Division of Clinical Research, Center for Emerging Virus Research, National Institute of Infectious Disease, Korea Disease Control and Prevention Agency, Cheongju, Korea.
8. Division of Public Health Emergency Response Research, Bureau of Public Health Emergency Preparedness, Korea Disease Control and Prevention Agency, Cheongju, Korea.
9. Big Data Management Division, Health Insurance Review & Assessment Service, Wonju, Korea.