1 Intensive Care Department, King Abdulaziz Medical City, Riyadh, Saudi Arabia; King Saud Bin Abdulaziz University for Health Sciences, Riyadh, Saudi Arabia; King Abdullah International Medical Research Center, Riyadh, Saudi Arabia. Electronic address: arabi@ngha.med.sa.
2 King Saud Bin Abdulaziz University for Health Sciences, Riyadh, Saudi Arabia; King Abdullah International Medical Research Center, Riyadh, Saudi Arabia; Infection Prevention and Control Department, King Abdulaziz Medical City, Riyadh, Saudi Arabia.
3 Department of Medicine, Division of Infectious Diseases and International Health, University of Virginia School of Medicine, Charlottesville, VA, USA.
4 Department of Medicine & Therapeutics, Stanley Ho Center for Emerging Infectious Diseases, The Chinese University of Hong Kong, Shatin, Hong Kong.
5 Center for Global Health, Institut Pasteur, Paris, France.
6 Institute of Health Policy Management and Evaluation, University of Toronto, Toronto, Canada; Department of Critical Care Medicine and Department of Medicine, Sunnybrook Health Sciences Centre, Toronto, Canada.