1 Population Health Research Institute, McMaster University and Hamilton Health Sciences, Hamilton, ON, Canada; Department of Medicine, McMaster University and Hamilton Health Sciences, Hamilton, ON, Canada. Electronic address: eikelbj@mcmaster.ca.
2 Population Health Research Institute, McMaster University and Hamilton Health Sciences, Hamilton, ON, Canada; Department of Medicine, McMaster University and Hamilton Health Sciences, Hamilton, ON, Canada.
3 Population Health Research Institute, McMaster University and Hamilton Health Sciences, Hamilton, ON, Canada; Department of Surgery, McMaster University and Hamilton Health Sciences, Hamilton, ON, Canada.
4 Wellcome Centre for Infectious Diseases Research in Africa, Institute for Infectious Disease and Molecular Medicine, University of Cape Town, Cape Town, South Africa; Division of Infectious Diseases and HIV Medicine, Groote Schuur Hospital, University of Cape Town, Cape Town, South Africa.