User blog comment:FairyRaven/Fairy Tail Chapter 425: Sabertooth X792, Review and Commentary/@comment-24536822-20150325021846/@comment-7418318-20150325181802

I think it was a persiflage of Zombie movies/series in general and not specific to any one series or movie.

I certainly doubt that any Zombie flic ever had the Zombies spread their affliction by sniffing their victims. ^^