1. Muhimbili Wellcome Programme; Muhimbili University of Health and Allied Sciences; Dar es Salaam Tanzania
2. Department of Biochemistry; Muhimbili University of Health and Allied Sciences; Dar-es-Salaam Tanzania
3. Department of Hematology and Blood Transfusion; Muhimbili University of Health and Allied Sciences; Dar-es-Salaam Tanzania
4. London School of Hygiene & Tropical Medicine; London United Kingdom
5. Graduate School of Global Health and Tropical Medicine; Nagasaki University; Nagasaki Japan
6. Tanga Centre; National Institute for Medical Research; Dar es Salaam Tanzania
7. Nuffield Department of Clinical Medicine; University of Oxford; Oxford United Kingdom