From the first ominous tingle I know I have about a ten minute period before I transform into a hideous mockery of a man and become a literal avatar of disease.  Once the process begins there is no stopping it until the horror completes itself.

It’s like becoming a werewolf.  Only I don’t gain any cool powers, I don’t get hairy, and my face hurts and drips puss.

Okay it’s nothing like becoming a werewolf.