1. Division of Infectious Diseases, Department of Pediatrics, Faculty of Medicine Chulalongkorn University Bangkok Thailand
2. Center of Excellence for Pediatric Infectious Diseases and Vaccines, Faculty of Medicine Chulalongkorn University Bangkok Thailand
3. Thai Red Cross Emerging Infectious Diseases Clinical Center King Chulalongkorn Memorial Hospital Bangkok Thailand
4. Division of Neurological Diseases, Department of Pediatrics, Faculty of Medicine Chulalongkorn University Bangkok Thailand
5. Division of Diagnostic Radiology, Department of Radiology, Faculty of Medicine Chulalongkorn University, King Chulalongkorn Memorial Hospital Bangkok Thailand