Can Vampires/Ghouls/[insert undeadish type anything here] sense them?
A8. Not by default or specifically as such. They may have an ability related to sensing spirits, humans, possessed humans, and so on that would enable them to, however this is not inherent to undead. Think of it like strong-willed people and Garou, in the absense of any special abilities: the human is uneasy and would like to get distance from the Garou, without really knowing why. A more gifted or experienced ghoul or vampire might recognize the feeling, or be able to sense the cleansing spirit.