About the Authors

Hlengiwe P. Madlala

Roles Data curation, Formal analysis, Project administration, Writing – original draft

hlengiwe.madlala@uct.ac.za

Affiliations Division of Epidemiology and Biostatistics, School of Public Health and Family Medicine, University of Cape Town, Cape Town, Western Cape, South Africa, Centre for Infectious Disease Epidemiology and Research, School of Public Health and Family Medicine, University of Cape Town, Cape Town, Western Cape, South Africa

Landon Myer

Roles Conceptualization, Funding acquisition, Methodology, Resources, Supervision, Writing – review & editing

Affiliations Division of Epidemiology and Biostatistics, School of Public Health and Family Medicine, University of Cape Town, Cape Town, Western Cape, South Africa, Centre for Infectious Disease Epidemiology and Research, School of Public Health and Family Medicine, University of Cape Town, Cape Town, Western Cape, South Africa

Thokozile R. Malaba

Roles Data curation, Investigation, Project administration, Writing – review & editing

Affiliations Division of Epidemiology and Biostatistics, School of Public Health and Family Medicine, University of Cape Town, Cape Town, Western Cape, South Africa, Centre for Infectious Disease Epidemiology and Research, School of Public Health and Family Medicine, University of Cape Town, Cape Town, Western Cape, South Africa

Marie-Louise Newell

Roles Conceptualization, Funding acquisition, Investigation, Methodology, Resources, Supervision, Writing – review & editing

Affiliations School of Human Development and Health, Faculty of Medicine, University of Southampton, Southampton, United Kingdom, School of Public Health, Faculty of Health Sciences, University of Witwatersrand, Johannesburg, South Africa

Competing Interests

Co-author Landon Myer has served as an editor for PLOS ONE in the past. The authors confirm that this does not alter their adherence to all the PLOS ONE policies on sharing data and materials.