1. Department of Paediatrics and Child Health, Catholic University of Health and Allied Sciences, Mwanza, United Republic of Tanzania.
2. Division of Hematology, Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati Children’s Hospital, 3333 Burnet Avenue, MLC 7015 Cincinnati, Ohio 45229, United States of America.
3. Department of Laboratory Services, Bugando Medical Centre, Mwanza, United Republic of Tanzania.
4. Department of Biochemistry and Molecular Biology, Catholic University of Health and Allied Sciences, Mwanza, United Republic of Tanzania.
5. Department of Pathology, Catholic University of Health and Allied Sciences, Mwanza, United Republic of Tanzania.