The Contagion Test target: Contagion Index × Endurance. The roll is a d100
roll-under, and failing it means the affliction is contracted — so a lower
Contagion Index yields a lower (easier-to-fail) target and is more contagious.
Parameters
contagionIndex: number
The affliction's Contagion Index (CI).
enduranceScore: number
The being's Endurance attribute score.
Returns number
The success-test target; never negative, always an integer.
The Contagion Test target: Contagion Index × Endurance. The roll is a d100 roll-under, and failing it means the affliction is contracted — so a lower Contagion Index yields a lower (easier-to-fail) target and is more contagious.