1. Stellenbosch University; Centre for Evidence Based Health Care, Division of Epidemiology and Biostatistics, Department of Global Health, Faculty of Medicine and Health Sciences; Francie van Zyl Drive, Tygerberg, 7505, Parow Cape Town Western Cape South Africa 7505
2. Yaoundé Central Hospital; Centre for the Development of Best Practices in Health (CDBPH); Yaoundé Cameroon
3. Liverpool School of Tropical Medicine; Cochrane Infectious Diseases Group; Pembroke Place Liverpool UK L3 5QA
4. St George's University of London; Institute of Infection and Immunity; London UK