He can understand that. A disease hitting so hard and fast across the planet that no one had time at all to work out the source, or a way to combat it apart from, well, combat.

"I suppose that's one thing to be glad of- that you aren't also fighting animals." He pauses a moment, thinking on what she'd said abut the massive group of them.

"Are they... learning that is a better way of attacking? The communities you mentioned all sounded like villages, nothing that big." How could they fight so many? Explosives, perhaps, but you'd need a lot. And even then...

"It takes a long time for a body to properly decompose in most circumstances. How long since this disease first hit? If you can keep them at bay, maybe at some point it will be over? Every walker would have decomposed?"