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