That's still a possible theory, but with Shane dead now there is no way they can come to that realization since he was alone on the bus. Besides, it doesn't explain Randall's infection.
It's becoming pretty clear that everyone is a potential walker with death being the cause.
@DDustiNN, the guy in season 1 got sick because he was only injured(scratched? I don't recall), he hadn't died yet. The wound was obviously infected though, so he would have died and turned eventually. As for the two guys in the bar, I believe Rick finished them with shots to the head, so they didn't have a chance to turn.
Recent discussions in the Video Games forum
|Shadow Complex is $4.94 on Xbox Live right now for Goldmembers||9||35 seconds ago|
|Destiny VGF Clan v5.0||6668||2 minutes ago|
|Battleborn Review Roundup||3||3 minutes ago|
|OT: 2016 NBA Playoffs!||155||4 minutes ago|
|OT: WWE Superstar Chyna passes away at 45||39||7 minutes ago|
|Hype! EA/DICE just changed it's Battlefield 1942 website image. WW2 Battlefield all but confirmed!||37||9 minutes ago|
|2016 VGF Vote to the death...you monsters||4022||11 minutes ago|
|OT: What does not being on Facebook mean to you?||29||14 minutes ago|
|I can't wait for the NX! I wanna see how bad it gets outsold by the PS4.||13||18 minutes ago|
|Dark Souls III Community Help Thread - **Expect Spoilers**||1603||21 minutes ago|
|playstation 4 *sony fix these issues*||93||26 minutes ago|
|Emily Rogers: Retro Studios NX game isn't Metroid or DKC. Releases 2017. Possibly New IP||39||1 hour ago|