1 Department of Epidemiology and International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA; Department of Medicine and Centre for Infectious Diseases, Stellenbosch University Faculty of Medicine and Health Sciences, Cape Town, South Africa; Department of Epidemiology, Infectious Diseases and Microbiology, and Center for Global Health, University of Pittsburgh, Pittsburgh, PA 15261, USA. Electronic address: jbn16@pitt.edu.
2 Kheth'Impilo AIDS Free Living, Cape Town, South Africa; Division of Epidemiology and Biostatistics, Department of Global Health, Faculty of Medicine and Health Sciences, Stellenbosch University, Cape Town, South Africa.
3 Division of Infection and Immunity, Centre for Clinical Microbiology, University College London, London, UK; National Institute for Health Research Biomedical Research Centre, University College London Hospitals, London, UK.
4 Division of Infectious Diseases, Department of Medicine, and Center for Dissemination and Implementation, Institute for Public Health, Washington University, St Louis, MO, USA.