Since we were raised on a steady diet of "Interview with the Vampire," "Bram Stoker's Dracula," "True Blood," "The Vampire Diaries" and "Twilight," we mostly assumed vampires could only be born, so to speak, when a living human is bitten by a vampire who then allows that human to drink his or her immortality-giving blood. Pop culture lore would also have us believe that when one is transformed into a vampire, she remains forever the age she was at transformation. Hence Kirsten Dunst's little girl vampire in "Interview."
There is some precedence in film ("Grave of the Vampire") and fiction, according to The Daily Rot. Aside from "Breaking Dawn," in Poppy Z. Brite's 1992 novel "Lost Souls,