1. University of Malawi, College of Medicine, Blantyre, Malawi
2. Malawi-Liverpool-Wellcome Trust Clinical Research Programme, Blantyre, Malawi
3. Oxford Centre for Tropical Medicine and Global Health, Oxford, United Kingdom
4. Mahidol-Oxford Tropical Medicine Research Unit, Bangkok, Thailand
5. Liverpool School of Tropical Medicine, Liverpool, United Kingdom
6. University of Liverpool, Liverpool, United Kingdom