 Ben's life changes when he donates a pint of blood.When Braddock, who is dying, is given a transfusion of his donated blood, and is brought back from the brink of death, Ben's physician, Dr. Matthew Pearce, determines that his O-negative blood contains all known antibodies and immunities.This gives Ben immunity to every known disease and an estimated lifespan five to ten times that of other humans, making him, in the doctor's words, "virtually immortal".