Children of the Night (Unabridged) [Unabridged Fiction‪]‬

In a desolate orphanage in what remains of post-Communist Romania, a desperately ill infant is given the wrong blood transfusion - and flourishes when he's supposed to die. The discovery of his unique immune system may hold the key to the long-awaited cure for cancer and AIDS.
For a dedicated American doctor, he promises the medical breakthrough of a lifetime, as well as a very special love she's never been able to find. But he also conceals a shockingly intimate link to a clan of vampires and their legendary leader - the fiend the world calls Vlad Dracula, who, for centuries, has triumphed over countless rival tyrants, including death itself.