Affiliation: | (1) Department of Pediatrics, Yonsei University College of Medicine, Severance Children’s Hospital, 250 Seongsanno, Seodaemun-gu, Seoul, 120-752, South Korea;(2) Department of Laboratory Medicine, Yonsei University College of Medicine, Severance Hospital, 250 Seongsanno, Seodaemun-gu, Seoul, 120-752, South Korea;(3) Division of Influenza and Respiratory viruses, Korea Centers for Disease Control and Prevention, 194 Tongil-Lo Eunpyong-Gu, Seoul, 122-701, South Korea |