1. ISGlobal, Hospital Clinic, Universitat de Barcelona , Barcelona , Spain
2. Ifakara Health Institute , Ifakara , Tanzania
3. Department Biomedicine-Petersplatz, University of Basel , Basel , Switzerland
4. Swiss Tropical and Public Health Institute , Basel , Switzerland
5. Faculty of Health Sciences, Department of Epidemiology and Biostatistics, University of the Witwatersrand, School of Public Health , Johannesburg , South Africa
6. Gerion, Amsterdam University Medical Center , Amsterdam , The Netherlands
7. Division of Infectious Diseases and Hospital Epidemiology, University Hospital Basel , Basel , Switzerland