1 London School of Hygiene & Tropical Medicine, Department of Infectious Disease Epidemiology, London, United Kingdom.
2 Imperial College London, Department of Medicine, London, United Kingdom.
3 Imperial College London, Department of Infectious Disease Epidemiology, London, United Kingdom.
4 ZAMBART, University of Zambia, School of Medicine, Lusaka, Zambia; London School of Hygiene & Tropical Medicine, Department of Clinical Research, London, United Kingdom.
5 Desmond Tutu TB Centre, University of Stellenbosch, Department of Paediatrics and Child Health, Stellenbosch, South Africa.
6 Columbia University, Mailman School of Public Health, New York, New York, United States of America.
Reflecting on a Policy Forum article by Till Bärnighausen and colleagues, the HPTN 071 (PopART) Study Team consider ethical and study power concerns and the importance of the trial's future findings.