1 Ministry of Health, Riyadh, Kingdom of Saudi Arabia.
2 Assistant Deputy Minister of Health, Ministry of Health, Riyadh, Saudi Arabia.
3 Makkah regional Health Directorate, Ministry of Health, Makkah, Saudi Arabia.
4 Ministry of Health, Bamako, Mali.
5 Department of Infectious Diseases and Clinical Microbiology, Aarhus University Hospital Skejby, Aarhus, Denmar.
6 Johns Hopkins Aramco Healthcare, Saudi Aramco, Dhahran, Kingdom of Saudi Arabia.
7 Ministry of Health, Riyadh, Kingdom of Saudi Arabia; College of Medicine, Alfaisal University, Riyadh, Saudi Arabia. Electronic address: zmemish@yahoo.com.