1. Department of Pathology, School of Biomedical Sciences, College of Health Sciences, Makerere University, P.O. Box 7072, Kampala, Uganda
2. Department of Wild Life, School of Veterinary Medicine and Animal Resources, College of Veterinary Medicine, Animal Resources and Biosecurity, Makerere University, P.O. Box 7062, Kampala, Uganda
3. Department of Pediatrics, School of Medicine, College of Health Sciences, Makerere University, P.O. Box 7072, Kampala, Uganda
4. National Agricultural Research Organization, Abi Zonal Agricultural Research and Development Institute, P.O. Box 219, Arua, Uganda