[Name] The Rat Plague [Source] Dishonored [Symptoms] 
The Rat Plague killed almost half of the population of the city of Dunwall, the fictional city from the game Dishonored. Victims of the rat plague can cure themselves via use of Sokolov's Health Elixir. Once blood comes from the Nose or Eyes there is no way to be cured. It is also known as the doom of Pandyssia.