Interesting read. I guess a lot of people dont really think of the stench of zombies. I guess I would mainly be worried about making it deader by shooting or smashing its head in. Too much andrenaline flowing to think about the smell. But yeah, id imagine its like roadkill on the highway...horrible smell.
The plague of the 21st Century, remember mad cow disease? Well mad cow became mad person became mad zombie. It's a fast acting virus that leaves you with a swollen brain, a raging fever, makes you hateful and violent and leaves you with a really bad case of the munchies.