1. National University Hospital, Department of Laboratory Medicine, Singapore, Singapore
2. Environmental Health Institute, National Environment Agency, Singapore, Singapore
3. National Centre for Infectious Diseases, Singapore, Singapore
4. Tan Tock Seng Hospital, Department of Infectious Diseases, Singapore, Singapore
5. Singapore General Hospital, Department of Infectious Diseases, Singapore, Singapore
6. Department of Infection Prevention and Epidemiology, Singapore General Hospital, Singapore, Singapore
7. National University of Singapore, Yong Loo Lin School of Medicine, Singapore, Singapore
8. National Public Health Laboratory, Ministry of Health, Singapore, Singapore
9. Nanyang Technological University, Lee Kong Chian School of Medicine, Singapore, Singapore