1. International Collaborations, Ministry of Health, Riyadh 11176, Saudi Arabia
2. Public Health Authority, Riyadh 13351, Saudi Arabia
3. Department of Public Health, College of Public Health, Imam Abdulrahman Bin Faisal University, Dammam 31445, Saudi Arabia
4. Global Center for Mass Gatherings Medicine, Ministry of Health, Riyadh 11176, Saudi Arabia
5. Department of Emergency Medicine, College of Medicine, King Saud University, Riyadh 12372, Saudi Arabia