1. Shanghai Institute of Infectious Disease and Biosecurity, School of Public Health, Fudan University, Shanghai, People’s Republic of China
2. Key Laboratory of Public Health Safety, Ministry of Education, Fudan University, Shanghai, People’s Republic of China
3. Division of International Epidemiology and Population Studies, Fogarty International Center, National Institutes of Health, Bethesda, MD, USA
4. Laboratory for Computational Epidemiology and Public Health, Department of Epidemiology and Biostatistics, Indiana University School of Public Health, Bloomington, IN, USA