[quote=Krieg]
Like I said, I can't force you to use my format. Just don't let details and realism trip you up too much. There's nothing realistic about zombies anyway.
[/quote]

I disagree. A fungal infection could, in theory, allow for a zombie. Fungi can preform neurological and vascular functions on a corpse, making it appear alive, we know this from studies. Theoretically, a fungus that infects a human could be transferred via a bite, lie dormant until death, then restart the neurological and vascular functions to aid in spreading the fungi to continue the species's growth. Highly improbable, but not impossible. Your idea, with a parasite, is actually very similar to the most likely scenario, which is why I like it so much.