1. College of Medicine, Alfaisal University, Riyadh, Kingdom of Saudi Arabia
2. Public Health Directorate, WHO Collaborating Center for Mass Gathering Medicine, Ministry of Health, Riyadh, Kingdom of Saudi Arabia
3. Institut de Veille Sanitaire, Paris, France
4. European Programme Intervention Epidemiology Training (EPIET), European Centre for Disease Prevention and Control (ECDC), Stockholm, Sweden
5. European Public Health Microbiology Training Programme (EUPHEM), European Centre for Disease Prevention and Control (ECDC), Stockholm, Sweden
6. Centre de Biologie et Pathologie Est, Hospices Civils de Lyon, University of Lyon, Lyon, France