What about the "Undead"?

Directing things to another topic, I've been requested to speak on the idea of the "undead". While that's something that's great for entertainment properties, I fail to see how this could work in reality. Vampires, for example, while *sort of* a similar topic, I find significantly more believable.

No property has ever given me an "outbreak" origin that I find believable or within reason. How would one even begin that couldn't be immediately handled or contained?

Perhaps I'm wrong, but the moment I see a "zombie" for the first time I'll be convinced that everything I believe in is a lie.

D.W. Maverick