Quote: Yes they carry the zombie contagion. That is why it is passed on by bite or even scratches. Even a person who gets stuck by an arrow dipped in walker blood.
Nope. Everybody is already infected with the zombie contagion.
If what you're saying is true, then the tactic of spreading zombie guts on yourself is idiocy. And often they've done with with open wounds, and it got in their eyes, etc.
You die, by any means whatsoever, you turn. Period. And you can die quite easily from even normal bites.
First if you watch the show or read the books then you should know the characters explicitly state repeatedly to not get zombie goo in their mouth,eyes, or wounds. Everybody does have the virus or whatever it is so obviously the zombies have it as well. Over and over people who are bitten die and turn while in a normal person it is dormant until their eventual demise. I said nothing about regular people not having the contagion where you claim the zombies carry nothing which is simply not true. Their bite contains a fatal dose except for occasions when a limb is severed in time to STOP the spread. No one has died simply because the virus was in their system.
While it hasn't been addressed in Walking Dead no one has been turned by the bite of a normal,living,breathing, human. That actually would be a good area to explore because of the possibilities and something that I have never seen used in zombie stories. The tactic of using zombie guts and gore as camouflage has been used several times-Michonne walked around with a gore covered cloak and without giving away probable spoilers if you haven't read the books a situation is coming up on the show that deals with the issue in dramatic fashion. If you are referring to real world bites I have never seen a case of a person dying from one unless the biter had some disease that could be passed on. Animal bites yes and some cases where a bite became infected though the latter not fatally.