Bog rot

Bog rot was a disease inflicted by bog hags on their victims.

Acquisition
The disease was contracted from injuries inflicted by the sharp nails of a bog hag and symptoms would begin to manifest within four days.

Effects
Bog rot caused a steady deterioration of the sufferer's stamina and fortitude. While this could be fatal, in general the damage was only temporary and a healthy individual could recover in as little as two days from the onset of symptoms.