1. Department of Environmental and Occupational Health, Directorate General for Disease Surveillance and Control, Ministry of Health, Muscat, Oman
2. Department of Internal Medicine, Al Nahdah Hospital, Muscat, Oman
3. Infectious Diseases Unit, Department of Internal Medicine, Royal Hospital, Muscat, Oman
4. Intensive Care Unit, Royal Hospital, Muscat, Oman
5. Directorate General for Disease Surveillance and Control, Ministry of Health, Muscat, Oman
6. Center for Global Health, Centers for Disease Control and Prevention (CDC), Atlanta, GA, USA
7. Division of Laboratory Sciences, National Center for Environmental Health, Centers for Disease Control and Prevention, Atlanta, GA, USA
8. National Biodefense Analysis and Countermeasures Center, Ft. Detrick, Frederick, MD, USA
9. Emory University School of Medicine, Atlanta, GA, USA