Not so original or unusual if its already a meme.
"Zombie" Smurfs have existed since 1963 in the Peyo comics. There was a story about a Smurf that was stung by a fly and whose skin turned pitch black (purple in the US cartoon version). He was reduced to only being able to shout "GNAP!" and started biting other Smurfs on the tail, which spread the epidemic.