These shows also never ever mention about how do deal with the stink either. The apocalypse is going to be a smelly affair with hundreds of millions/billions of rotting corpses; enough to ensure that no matter where you go on the planet the stink will still be around.

Of course some folks may have already been a little more prepared to cope with the sweet sickly smelly meaty stink more than others, especially folks who stand around malls outside the local well known burger chains.