Sleeping Sickness

Source Heart of the Jungle pg. 8
Type injury; Fortitude Save DC 14
Onset 1d2 days; Frequency 1/day
Effect 1d4 Wis damage and target is fatigued
Cure 2 consecutive saves or arsenic (see text)
The best cure for this disease is dosing the patient with the poison arsenic (Pathfinder RPG Core Rulebook 558)—if the patient survives, there’s a cumulative 30% chance that the disease is immediately cured.