Quote:
Originally Posted by GH85Carrera
OK, I have a question, well actually two.
The walkers are dead and you can't drown them so they don't breath. How do they make that screaming sound?
And if their hearts don't pump how come all the blood comes squirting out when you lop of their heads. The blood would just pool in their legs or leak out if they had a leg wound.
You can be covered in walker blood and not turn into a walker but if they just nibble on you, poof you are a walker too.
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POSSIBLE SPOILER ALERT!!!! DO NOT READ ANY FURTHER IF YOU HAVE JUST STARTED WATCHING THE SERIES
It hasn't been explained really well yet on tv, but in one episode, the group goes to the CDC building in Atlanta and meet a man there called Jenner. Not to give too much away, but according to him, everyone is already infected with the virus and when you die, the virus reanimates parts of you brain and the person comes back as a walker. As a walker, you crave live flesh but don't need it to stay around. If you come in contact with the walker blood, unless you get an infection and die, it will not kill you. If you get bit on the other hand, you usually get an infection and die. That is all that really has been explained so far. As stomachmonkey stated, Eugene says he knows what caused the outbreak and how to fix it.