This is a descriptive, observational, cross-sectional and retrospective study carried out in the Transfusion Transmissible Infections Laboratory (ITT) of the Hemotherapy and Immunohematology Unit of the General Hospital of Acute Diseases Juan. A. Fern ndez General Hospital belonging to the GCABA.The purpose of this work is to study the average prevalence of the mandatory screening diseases in blood and platelet donors, in accordance with the requirements...