Reply, without spoiler:
You make a vampire by biting your innocent and drinking their blood (if that's a spoiler for anyone, come out from under that rock and look around!) The situation you point out is something different and made him "unclean." I'm not sure if that is a Catholic concept or a Vampire Lore concept, being well versed in neither. I would lean toward the former since the Catholic church, like the Old Testament Israelites / New Testament Jews, is enamored with ritual and tradition.
You make a vampire by biting your innocent and drinking their blood (if that's a spoiler for anyone, come out from under that rock and look around!) The situation you point out is something different and made him "unclean." I'm not sure if that is a Catholic concept or a Vampire Lore concept, being well versed in neither. I would lean toward the former since the Catholic church, like the Old Testament Israelites / New Testament Jews, is enamored with ritual and tradition.