1. Center of Excellence in Clinical Virology, Departments of Pediatrics, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand
2. Center of Excellence in Clinical Virology, Departments of Biochemistry, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand
3. Faculty of Veterinary Medicine, Kasetsart University, Nakorn Pathom, Thailand
4. Faculty of Veterinary Science, Chulalongkorn University, Bangkok, Thailand