1. University of Bristol, Bristol, UK
2. Malawi–Liverpool–Wellcome Trust Clinical Research Programme, University of Malawi College of Medicine, Blantyre, Malawi
3. Nuffield Department of Clinical Medicine, University of Oxford, Oxford, UK
4. KEMRI-Wellcome Trust Research Programme, Centre for Geographic Medicine Research- Coast, Kilifi, Kenya
5. Liverpool School of Tropical Medicine, Liverpool, UK