1. Desmond Tutu TB Centre, Department of Paediatrics and Child Health, Faculty of Medicine and Health Sciences
2. Department of Paediatrics and Child Health, Tygerberg Hospital, Stellenbosch University, South Africa
3. Research Information Monitoring, Evaluation & Surveillance (RIMES), National TB Control & Management Cluster, National Department of Health, Pretoria, South Africa, , Email: mosman@sun.ac.za