Corebima B.I.R.V., Doctoral Program in Medical Science, Faculty of Medicine, Brawijaya University, Indonesia, Department of Pediatrics, Faculty of Medicine, Brawijaya University, Saiful Anwar General Hospital, Indonesia; Rohsiswatmo R., Department of Pediatrics, Faculty of Medicine, University of Indonesia, Dr. Cipto Mangunkusumo General Hospital, Indonesia; Santosaningsih D., Department of Clinical Microbiology, Faculty of Medicine, Brawijaya University, Saiful Anwar General Hospital, Indonesia; Barlianto W., Department of Pediatrics, Faculty of Medicine, Brawijaya University, Saiful Anwar General Hospital, Indonesia; Handono K., Department of Clinical Pathology, Faculty of Medicine, Brawijaya University, Saiful Anwar General Hospital, Indonesia