Transylvania isn't the only place to have vampires. Greece has them as well. Several types, in fact.
Callicantzaros-
These are a peculiar type of Grecian vampire. Leo Allatius discussed them in his 1645 treatise, De Graecorum hodie quorundam opinationibus. These vampires are related to the sanctity ascribed to Christian holy days at Christmas time. It is said that any child born between Christmas and New Years (or Epiphany of Twelfth Night- the evening when the Three Wisemen supposedly arrive at Bethlehem with their gifts for Jesus) are considered unlucky. These children were said to be feast-blasted and believed to be fated to become vampires upon death. The callicantzaros is distinct among vampires because they are limited to being active for the twelve days between Christmas and Epiphany. The rest of the time, they are stuck in a vague kind of limbo. It can be recognized by its manic behavior and extended fingernails. This vampire would grab people with its talons and tear them to sheds. Based on the maturity level of the born in the unlucky days, the appearance of the callicantzaros varies. The children were treated with hostility, making it noticeable in everyday life. Their parents feared they would act out vampiric fantasies on their siblings. Upon death, the siblings are often bitten and devoured by the callicantzaros. In order to prevent their child from becoming a vampire, one parent would hold the infant feet down over a fire until the tonails were singed.