From LSWiki

Class: Affinity Skills
Attribute: Vitality
Pedagogy: Body Alteration
Practitioner Term: Disease Affinite
Specialty Required: Degree I
Antagonistic To: Poison Affinity
Hidden Skill

This skill represents one's bodily processes operating in such a fashion that the activity of disease agents is incorporated into the
body's functioning, potentially even to the point where exposure to them becomes restorative.  However, the greater an affinity for
disease one develops, the more vulnerable one becomes to poison.

Disease affinity can be increased by exposure to pestilence, as well as degraded by exposure to venom, changing more quickly
according to one's somatic adaptability.

Trainers