Scientists have unearthed a secret which will clarify why some persons are in a position to withstand viral infections, having screened the immune methods of girls uncovered to hepatitis C (HCV) by way of contaminated anti-D transfusions given over 40 years in the past in Eire. The extraordinary work has wide-ranging implications from enhancing our elementary understanding of viral resistance to the potential design of therapies to deal with contaminated individuals.