"One other thing. Never drink the water out here without boiling it." the old scavenger added, waving a hand over the bogs and hills. "You'll get rabies, and I don't like accepting payment from somebody who's trying to eat me."
"Rabies? I thought that was spread by bites?"
"Meh. You could ask the dwarves under those hills. Oh wait, they're all dead," the scavenger growled and spat.
So, the dwarven cities in this part of my world have been officially abandoned since rabies started mutating about seventy/eighty years before the story starts. The long and short of it is that rabies is now waterborne, and can potentially spread.
I'm assuming (like the old man up above) that boiling water will provide safe drinking water. However, how does this affect the following forms of agriculture?
- Fishing (fish farms, or sea fish if it leaks into the sea)