1 Department of Infectious Diseases, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea.
2 Institut Pasteur Korea, Seongnam-si, Gyeonggi-do, Republic of Korea.
3 Institut Pasteur Korea, Seongnam-si, Gyeonggi-do, Republic of Korea. Electronic address: youngmee.jee@ip-korea.org.
4 Department of Infectious Diseases, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea. Electronic address: kimsunghanmd@hotmail.com.