1 Global Centre for Mass Gatherings Medicine, Public Health Directorate, Ministry of Health, Riyadh, 11176, Saudi Arabia. Electronic address: [email protected].
2 Global Centre for Mass Gatherings Medicine, Public Health Directorate, Ministry of Health, Riyadh, 11176, Saudi Arabia.
3 Global Centre for Mass Gatherings Medicine, Public Health Directorate, Ministry of Health, Riyadh, 11176, Saudi Arabia; Department of Family and Community Medicine, College of Medicine, Kind Saud University, Riyadh, Saudi Arabia.