BRD2 and infection: In relation to the seroconversion rate of HBV in RP donors was observed that only during before HBV-NAT period (2013–2014) there was a bigger rate of donors who were among 16–29 (the lowest prevalence in FT donors to HBV), these data can reflect the necessity to invest in prevention and vaccine campaigns (as this age group shows more active sexual behavior), therefore being the most common infection through HBV.