1. Department of Infectious Diseases, Public Health Service Amsterdam
2. Stichting hiv monitoring, Amsterdam, The Netherlands
3. Desmond Tutu TB Centre, Department of Paediatrics and Child Health, Faculty of Medicine and Health Sciences, Stellenbosch University, Cape Town
4. Empilweni Services and Research Unit, Department of Paediatrics and Child Health, Rahima Moosa Mother and Child Hospital, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa
5. TREAT Asia, amfAR - The Foundation for AIDS Research, Bangkok, Thailand