1. Department of Pediatrics, Chang Gung Children's Hospital, Chang Gung Memorial Hospital, College of Medicine, Chang Gung University, Taoyuan, Taiwan
2. Center for Diagnostics and Vaccine Development, Centres for Disease Control, Ministry of Health and Welfare, Taipei, Taiwan
3. Departments of Anatomic Pathology, Chang Gung Memorial Hospital, College of Medicine, Chang Gung University, Taoyuan, Taiwan
4. Department of Pediatrics, Chang Gung Children's Hospital, Chang Gung Memorial Hospital, College of Medicine, Chang Gung University, Kaohsiung, Taiwan
5. Department of Microbiology and Immunology, School of Medicine, College of Medicine, China Medical University, Taichung, Taiwan
6. Research Centre for Emerging Viral Infections, Chang Gung University, Taoyuan, Taiwan
7. Department of Laboratory Medicine, Linkou Chang Gung Memorial Hospital, Taoyuan, Taiwan