Natural Diseases
Natural diseases occur throughout Erdreja and can be contracted by characters in the normal manner.
Natural diseases may or may not be contagious.
Unliving Diseases
These are the diseases spread by certain types of unliving. They are unnatural in origin but few are contagious.
Magical Diseases
These diseases are inflicted through a magical process. They tend to be designed to be deadly, highly contagious and very quick, although such items are rare and expensive.