You mean there are real zombies out there?
The concept of corpses walking originates in the occult, even if the cause is supposed to be a microorganism. Same with vampirism of similar causation.
Lawrence (Bob Hope): "You live here?"
Montgomery: "Yes."
Lawrence (Bob Hope): "Then maybe you know what a zombie is"
Montgomery: "When a person dies and is buried, its seems there are certain voodoo priests who ... who have the power to bring him back to life."
Carter: "How horrible!"
Montgomery: "It's worse than horrible because a zombie has no will of his own. You see them sometimes walking around blindly with dead eyes, following orders, not knowing what they do, not caring."
Lawrence (Bob Hope): "You mean like Democrats?"
In the animal world? Yup.
Look up prions.
It’s a stretch...but that’s what we are going on! :-)