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Reduced risk of transfusion‐transmitted HIV in Kenya through centrally co‐ordinated blood centres, stringent donor selection and effective p24 antigen‐HIV antibody screening

Background  Following a 1994 study showing a high rate of transfusion‐associated HIV, Kenya implemented WHO blood safety recommendations including: organizing the Kenya National Blood Transfusion Service (NBTS), stringent blood donor selection, and universal screening with fourth‐generation p24 antigen and HIV antibody assays. Here, we estimate the risk of transfusion‐associated HIV transmission in Kenya resulting from NBTS laboratory error and consider the potential safety benefit of instituting pooled nucleic acid testing (NAT) to reduce window period transmission.