1. National Centre for Infectious Diseases, Singapore, Singapore
2. Department of Infectious Diseases, Tan Tock Seng Hospital, Singapore, Singapore
3. Lee Kong Chian School of Medicine, Singapore, Singapore
4. Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
5. Saw Swee Hock School of Public Health, National University of Singapore, Singapore, Singapore