People complain that their choices have no consequences.
Lo and behold, a choice with consequence, and people complain... jfc
Also, it seems pretty obvious, at least to me, that this would be a consequence. If you paid any attention at all to the quest, you'd know it was an infectious disease that you obtain from a molerat bite. Did you want the game to slap you in the face and yell at you that you'd get a disease if you got bit?
edit: anyway, if you care so much just spawn a cure and use it. I won't be bothered to find the code for you, so do it yourself. or go to the debug room using qasmoke and find it there.