African institute of biomedical Science and Technology (AiBST), Harare, Zimbabwe (C.M., C.R.K., N.N.K., R.S.T.); Sydney Brenner Institute of Molecular Bioscience (SBIMB), Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa (C.M., M.R., B.M., N.S.); Wits Donald Gordon Medical Centre (WDGMC), Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa (H.E., H.M., S.R., B.S., F.V.S., J.L., J.F.); Karolinska Institute, Department of Clinical Science, Intervention and Technology (CLINTEC), Division of Transplantation Surgery, Karolinska University Hospital Huddinge, Sweden (E.E.); Bioengineering and Integrated Genomics Group, Next Generation Health Cluster, Council for Scientific and Industrial Research (CSIR), Pretoria, South Africa (T.H., J.N., J.S.); and Transplant Services, Intermountain Medical Center, Salt Lake City, Utah (J.B.)