Aggravated Damage

Fire and the rays of the sun inflict terrible wounds on the undead, as can the teeth and claws of other vampires (as well as the attacks of werewolves or other supernatural creatures). Aggravated damage may not be soaked except with the Discipline of Fortitude. Moreover, aggravated damage is far more difficult to heal. A level of aggravated damage may be healed only with a full day of rest and the expenditure of five blood points (though a vampire may, at the end of the full day's rest, cure additional aggravated health levels by spending an additional five blood points and one Willpower point per extra aggravated health level to be healed). Worst of all, a vampire who loses his last health level due to aggravated damage meets Final Death - his eternal life ends at last, and he goes to whatever reward awaits him beyond the grave.

Mortals may ignore sunlight, but obviously take damage from fire, fangs, and claws. If a mortal is susceptible to a type of aggravated damage (fire, for example), that damage is treated as lethal.