The alternative lifestyle "Vampirism" consists of drinking blood and psychic vampirism. Practitioners of pyschic vampirism draw spiritual nourishment from auric or pranic energy.

if its not full vampirism just the poryphic haemo thing then a cure common disease potion or imperial shrine will work if it is full blown vampirism its incurable

When a person turns into vampire.

vampirism...

A vampirism paraphilia. A true vampire paraphilia should be distinguished from a goth or emo fashion culture. In true vampirism the person is attracted to the blood vessels of their "victim" and/or the actual drinking of their blood. True vampirism as a paraphilia is rare.