1. Stanley Ho Centre for Emerging Infectious Diseases, The Chinese University of Hong Kong, Shatin, Hong Kong
2. Jockey Club School of Public Health and Primary Care, The Chinese University of Hong Kong, Shatin, Hong Kong
3. Stanley Ho Centre for Emerging Infectious Diseases, The Chinese University of Hong Kong, Shatin, Hong Kong; Department of Psychiatry, Queen Mary Hospital, Pokfulam, Hong Kong
4. School of Pharmacy, The Chinese University of Hong Kong, Shatin, Hong Kong
5. Stanley Ho Centre for Emerging Infectious Diseases, The Chinese University of Hong Kong, Shatin, Hong Kong; Department of Medicine and Therapeutics, The Chinese University of Hong Kong, Shatin, Hong Kong