1. Infectious Diseases Division, Department of Medicine and Department of Research, Prince Mohammed Bin Abdulaziz Hospital, Ministry of Health, Riyadh, Kingdom of Saudi Arabia
2. College of Medicine, Alfaisal University, Riyadh, Kingdom of Saudi Arabia
3. Hubert Department of Global Health, Rollins School of Public Health, Emory University, Atlanta, Georgia, USA
4. Global Center for Mass Gathering Medicine, Ministry of Health, Riyadh, Kingdom of Saudi Arabia
5. Department of Emergency Medicine, College of Medicine, King Saud University, Riyadh, Kingdom of Saudi Arabia
6. School of Public Health, University of Bamako, Bamako, Mali