Maulahela, H., Division of Gastroenterology, Internal Medicine Department, Faculty of Medicine Universitas Indonesia-Cipto Mangunkusumo National Central General Hospital, Infectious Diseases and Immunology Research Center, Indonesian Medical Education and Research Institute (IMERI), Jakarta, Indonesia; Simadibrata, M., Division of Gastroenterology, Internal Medicine Department, Faculty of Medicine Universitas Indonesia-Cipto Mangunkusumo National Central General Hospital, Infectious Diseases and Immunology Research Center, Indonesian Medical Education and Research Institute (IMERI), Jakarta, Indonesia; Nelwan, E.J., Division of Tropical Medicine and Infectious Diseases, Internal Medicine Department, Faculty of Medicine Universitas Indonesia, Cipto Mangunkusumo Hospital, Infectious Diseases and Immunology Research Center, Indonesian Medical Education and Research Institute (IMERI), Jakarta, Indonesia; Rahadiani, N., Department of Anatomical Pathology, Faculty of Medicine Universitas Indonesia-Cipto Mangunkusumo National Central General Hospital, Jakarta, Indonesia; Renesteen, E., Infectious Diseases and Immunology Research Center, Faculty of Medicine Universitas Indonesia, Indonesian Medical Education and Research Institute (IMERI), Jakarta, Indonesia; Suwarti, S.W.T., Infectious Diseases and Immunology Research Center, Faculty of Medicine Universitas Indonesia, Indonesian Medical Education and Research Institute (IMERI), Jakarta, Indonesia; Anggraini, Y.W., Infectious Diseases and Immunology Research Center, Faculty of Medicine Universitas Indonesia, Indonesian Medical Education and Research Institute (IMERI), Jakarta, Indonesia