1. Department of Bioengineering and Therapeutic Sciences, University of California San Francisco, San Francisco, California, USA
2. Bagamoyo Research and Training Center, Ifakara Health Institute, Bagamoyo, Tanzania
3. Desmond Tutu TB Centre, Department of Paediatrics and Child Health, Faculty of Medicine and Health Sciences, Stellenbosch University, Stellenbosch, South Africa
4. Department of Pediatrics, New York University School of Medicine, New York, New York, USA
5. Department of Pediatrics, University of Wisconsin-Madison School of Medicine and Public Health, Madison, Wisconsin, USA