1. National University Hospital, Department of Laboratory Medicine, Singapore
2. Tan Tock Seng Hospital, Department of Infectious Diseases, Singapore
3. National Centre for Infectious Diseases, Singapore
4. National University of Singapore, Yong Loo Lin School of Medicine, Singapore
5. Singapore General Hospital, Department of Infectious Diseases, Singapore
6. Nanyang Technological University, Lee Kong Chian School of Medicine, Singapore
7. National Public Health Laboratory, Ministry of Health, Singapore