A brief, annotated history of the vampire: from Serbian village exhumations to the New England consumption panic.
The Slavic origins are not what literature has made of them. Petar Blagojevich was killed by what may have been epidemic typhus in 1725; his neighbors dug him up and described what they saw. A century and a half later, in Rhode Island, families were still doing the same thing for the same reason. The folk explanation crossed the Atlantic before the novel did.