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chichiusa said: I agree, bad logic, I think the walkers are a result of an encephalitis infection of the brain and a bite from one cause the dormant virus to activate in a "healthy" individual because of an autoimmune response. Rick had maybe a minute for Hirschel's leg, but just getting the fluid in you when killing wouldn't necessarily trigger a huge immune system response, a bite or gouge causes shock and a larger autoimmune response. That's why they don't turn when they cut themselves shaving....oops! No one has shaved for a bit on this show, I bet they don't smell too good either.