Background: Deferring blood donors who admit to high-risk behavior on questioning are likely to eliminate those in window period for transfusion transmitted infections (TTI). However. many questions have been implemented in some countries as part of donor history questionnaire. based on precautionary principle and not on evidence. https://www.diegojavierfares.com/amazing-find-Dinah-Lace-Front-Synthetic-Wig-by-Bobbi-Boss-limited-save/