1. Division of Human Blood Safety Surveillance, Korea Centers for Disease Control & Prevention, Cheongju, Korea
2. Department of Laboratory Medicine, Chonnam National University Hospital, Gwangju, Korea
3. Department of Pathology, Seoul National University Bundang Hospital, Seongnam, Korea
4. Department of Laboratory Medicine, Yonsei University College of Medicine, Seoul, Korea
5. Department of Preventive Medicine, Korea University College of Medicine, Seoul, Korea
6. Department of Laboratory Medicine and Genetics, Samsung Medical Center, Sungkyunwan University School of Medicine, Seoul, Korea
7. Division of Infectious Disease Surveillance, Korea Centers for Disease Control & Prevention, Cheongju, Korea