1. Heidelberg Institute of Global Health, Heidelberg University, Heidelberg, Germany
2. Ministry of Health, Mbabane, Eswatini
3. World Health Organization, Mbabane, Eswatini
4. Global HIV, Hepatitis and STI Programme, World Health Organization, Geneva, Switzerland
5. Africa Health Research Institute, Mtubatuba, South Africa
6. Center for Population and Development Studies, Harvard University, Cambridge, MA, USA
7. MRC/Wits Rural Public Health and Health Transitions Research Unit (Agincourt), School of Public Health, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa
8. Department of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA