1. Harvard T.H. Chan School of Public Health Center for Communicable Disease Dynamics, Department of Epidemiology, , Boston, MA, United States
2. Centers for Disease Control and Prevention Center for Forecasting and Outbreak Analytics, , Atlanta, GA, United States
3. World Health Organization Department of Immunizations, Vaccines and Biologicals, , Geneva, Switzerland
4. Centers for Disease Control and Prevention National Center for Immunization and Respiratory Diseases, , Atlanta, GA, United States
5. Harvard T.H. Chan School of Public Health Department of Immunology and Infectious Diseases, , Boston, MA, United States