Those that died in the highway episode died from a virus, the 1st virus, before being affected by the 2nd virus. The "zombie" virus (ie the 2nd virus) is the cure, released by the CDC, to combat the 1st virus. Those infected by the 2nd virus first are surviving and only affected by the 1st and 2nd virus mixing after they die.
So 3 groups of people:
People that died from virus 1 before getting virus 2.
People that got virus 1 first then virus 2 before they died (zombies).
People that got virus 2 first, then exposed to virus 1 (survivors or future zombies).
So it's very simple!
Ahhh, I see.
Oh okay,
Kirkman as pointed out above basically said ignore the reason behind those people dead on the hwy. The military probably gased them for something.
As for ingesting stuff like blood accidentally vs being bitten. The accidental blood ingestion would have to past through the stomach and probably get burned up. While a bite would be like being injected into the blood stream via hypodermic and through a wound. Another thing I guess would be a different virus that later mutated into the zombie virus.
That is just my thought on the subject anyhow.
Unless you have a situation like snake venom being sucked out by someone who has cavities and then dies because of the exposure. Or someone that has ulcers from stress can easily be infected.
Anyway, thanks for explanation, Heath.
Had to get my fix again before February.