I have the habit of checking the hospital every so often, just to see what's going on. It started with one kid, then a couple cats, then one of my militia captains, and it's been spreading. The general symptoms start with "Advanced Rot" on both eyes, then the entire body swells up. When one of the cats bled to death, I checked over the body and found forgotten beast extract, forgotten beast blood, and dwarf pus. The pus seems to be the only common factor between the blind, the most recent only has it on their right foot.
My doctors keep removing the rotting eyes, so I haven't had any dwarf deaths yet, but I'm getting concerned about the growing blindness amongst the dwarves. What do I do? We've got plenty of soap. Should I flood the entire fortress to ensure it cleans (because that will never go wrong).
How do you folks deal with disease?