[Death689God]

Originally Posted by Rommel49

That's why I said that at a minimum the information we have access to gives us a pretty big clue the problem is atleast statewide, simply based on the distance between Savannah and Atlanta.

However, one could reasonably infer that the infection crossed state borders as well:

The quarantine in Savannah was unsuccessful, Savannah not only has an airport, it has access to the sea. It's also not far from South Carolina.

The lack of apparent military involvement at this point would be a pretty big clue as well that things are looking grim. Georgia's home to Ft. Benning, one of the largest military bases in the nation (incidentally, where I went for basic). Benning's not that far from Atlanta from what I remember, the fact we don't see much in the way of any sort of real military presence near the biggest city in the state implies they already failed (somehow) and couldn't deploy in force to aid the rest of the state.

A good chunk of the characters seem to have some indication the situation could potentially last longer than a few days or get worse, Carley brings up the possibility when she confronts Lee about his past and it being potentially detrimental to the group. Kenny's plan to retreat to his boat is predicated on the situation getting worse.

Good Catch.