Koesnoe S., Department of Internal Medicine, Faculty of Medicine Universitas Indonesia, Dr. Cipto Mangunkusumo General National Hospital, Jakarta, Indonesia; Medise B.E., Department of Child Health, Faculty of Medicine Universitas Indonesia, Dr. Cipto Mangunkusumo General National Hospital, Jalan Diponegoro no 71, Jakarta, 10340, Indonesia; Rengganis I., Department of Internal Medicine, Faculty of Medicine Universitas Indonesia, Dr. Cipto Mangunkusumo General National Hospital, Jakarta, Indonesia; Hadinegoro S.R., Department of Child Health, Faculty of Medicine Universitas Indonesia, Dr. Cipto Mangunkusumo General National Hospital, Jalan Diponegoro no 71, Jakarta, 10340, Indonesia; Puspita M., PT. Bio Farma, Bandung, Indonesia; Sari R.M., PT. Bio Farma, Bandung, Indonesia; Yang J.S., International Vaccine Institute, Seoul, South Korea; Sahastrabuddhe S., International Vaccine Institute, Seoul, South Korea; Soedjatmiko, Department of Child Health, Faculty of Medicine Universitas Indonesia, Dr. Cipto Mangunkusumo General National Hospital, Jalan Diponegoro no 71, Jakarta, 10340, Indonesia; Gunardi H., Department of Child Health, Faculty of Medicine Universitas Indonesia, Dr. Cipto Mangunkusumo General National Hospital, Jalan Diponegoro no 71, Jakarta, 10340, Indonesia; Sekartini R., Department of Child Health, Faculty of Medicine Universitas Indonesia, Dr. Cipto Mangunkusumo General National Hospital, Jalan Diponegoro no 71, Jakarta, 10340, Indonesia; Wirahmadi A., Department of Child Health, Faculty of Medicine Universitas Indonesia, Dr. Cipto Mangunkusumo General National Hospital, Jalan Diponegoro no 71, Jakarta, 10340, Indonesia; Kekalih A., Community Medicine Department, Faculty of Medicine Universitas Indonesia, Dr. Cipto Mangunkusumo General National Hospital, Jakarta, Indonesia; Mukhi S., Department of Child Health, Faculty of Medicine Universitas Indonesia, Dr. Cipto Mangunkusumo General National Hospital, Jalan Diponegoro no 71, Jakarta, 10340, Indonesia; Satari H.I., Department of Child Health, Faculty of Medicine Universitas Indonesia, Dr. Cipto Mangunkusumo General National Hospital, Jalan Diponegoro no 71, Jakarta, 10340, Indonesia; Bachtiar N.S., PT. Bio Farma, Bandung, Indonesia