It makes you reconsider every vampire story you ever heard growing up. From what I understand, the man that Dracula was based on was actually someone from a royal family that kidnapped children in order to harvest their blood. Many ancient cultures believed in the idea of gaining benefits through the consumption of human flesh, blood, etc. so it's not surprising this still goes on. They've just managed to make it sound nicer, like using mobile facilities to set up "blood drives" for donations. It reeeeaaaallly makes you wonder.