PsychoFreak99
badonyx
But if it's airborne why wouldn't he tell everybody?
That could make everyone panic and/or give up and just commit suicide. Like he said to Hershal, he's just trying to let them be hopeful, believe in salvation. Even if he doesn't.
This.
Plus, now we're maybe getting hints about it. In "18 Miles Out", with the two dead cops, and how Rick and Shane were wondering how they died. Shane was like, "There's no bites," and Rick said, "It must be scratches." He could easily be hiding the truth about it being airborne. Also, when Rick killed the fat guy in the bar, he shot him twice, so the guy was going to die anyway. Rick didn't need to do a headshot TOO, unless he was worried the fat guy might become a walker afterwards.