Putrid Plague (disease) The Sickened and Unconscious conditions from putrid plague don't improve on their own until the disease is cured.
Saving Throw DC 14 Fortitude
Stage 1 carrier with no ill effect (1d4 hours)
Stage 2 Sickened 1 (1 day)
Stage 3 Sickened 1 and Slowed 1 (1 day)
Stage 4 Unconscious (1 day)
Stage 5 dead
Source: Pathfinder Monster Core
Running this fight? Add the giant rat to the initiative tracker: type its name and the AC, hit points and Perception for initiative fill in, and the book button shows this stat block mid-fight.