1. Department of Epidemiology, School of Public Health, Fudan University, Shanghai, China
2. Department of Immunization, Wuxi Center for Disease Control and Prevention, Wuxi, China
3. Department of Epidemiology and Health Statistics, School of Public Health, Southeast University, Nanjing, China
4. Centre for Digital Public Health in Emergencies, Institute for Risk and Disaster Reduction, University College London, London, UK
5. Department of Infectious Disease Epidemiology, London School of Hygiene & Tropical Medicine, London, UK
6. Laboratory of Data Discovery for Health (D24H), Hong Kong Science Park, Hong Kong Special Administrative Region, China
7. WHO Collaborating Centre for Infectious Disease Epidemiology and Control, School of Public Health, LKS Faculty of Medicine, The University of Hong Kong, Hong Kong Special Administrative Region, China