Comment by keeda

Not quite zombies, but there is a credible theory that rabies was the inspiration for vampires -- and maybe even werewolves -- since a lot of the symptoms are similar, e.g. transmission through biting (often from dogs and bats, which coincidentally are also animals that vampires can transform into), heightened aggression that includes biting, aversion to bright lights and strong smells like garlic:

https://www.medicalnewstoday.com/articles/321780