1 Barcelona Centre for International Health Research (CRESIB, Hospital Clínic-Universitat de Barcelona), Barcelona, Spain.
2 Department of Control of Neglected Tropical Diseases, World Health Organization, Geneva, Switzerland.
3 Centre for Tropical Diseases (CTD), Sacro Cuore Hospital, Verona, Italy.
4 Hospital for Tropical Diseases London UK - National Institute for Health Research University College London Hospitals Biomedical Research Centre, London School of Hygiene and Tropical Medicine, London, United Kingdom.