1. The Jockey Club School of Public Health and Primary Care The Chinese University of Hong Kong Hong Kong SAR PR China
2. Li Ka Shing Institute of Health Sciences, Faculty of Medicine The Chinese University of Hong Kong Hong Kong SAR PR China
3. HKU‐Pasteur Research Pole, School of Public Health, Li Ka Shing Faculty of Medicine The University of Hong Kong Hong Kong SAR PR China
4. School of Public Health, Li Ka Shing Faculty of Medicine The University of Hong Kong Hong Kong SAR PR China
5. Department of Medicine and Therapeutics The Chinese University of Hong Kong Hong Kong SAR PR China
6. Stanley Ho Centre for Emerging Infectious Diseases, Faculty of Medicine The Chinese University of Hong Kong Hong Kong SAR PR China
7. Department of Pathology and Immunology Washington University School of Medicine in St. Louis St. Louis Missouri USA
8. Department of Internal Medicine Washington University School of Medicine in St. Louis St. Louis Missouri USA