It depends on genre more than anything. With old-school gothic vampires, you can get away with 'superstition'-based lore, like garlic, religion, 'magic', animal motifs and such, while modern settings tend to favour cod-scientific approaches, 'justifying' vampire traits through genetics and the effect of drinking blood, which, to my mind, discredit garlic and holiness. Other elements like psychic abilities can go either way. Glamour does, too, with both the glamourousness and the grotesque being gothic features, while modern interpretations may blur these elements. To the list of traits, I'd add obsessive, compulsive behaviour. An old (I think) Polish 'remedy' for vampires was dumping a load of grain on the ground - they'd be compelled to count them, distracting them for a getaway/slay. Also weak to sunlight/sunrise. It also might be worth adding a section for breeding; exact method of vampire creation (any bite, feeding off a vampire's blood, unholy rite, other?) and relationship between 'sire' and 'progeny' (as I call them). Can a vampire breed?