Hey folks, as the title says.
I recently beat this game and I'm just looking to tie up loose ends. The Joker infection was biological in nature coming from Joker's blood. This leaves me a little confused as to how Batman was able to fight it and suppress it in the end. I mean, sure there's psychological effects and stuff like that but the root of them is from Batman's biology. If it was purely a psychological/mental health issue then I'd understand how he could just scare Joker into not showing his face ever again, there's a pathos there where Batman works through his issues.
But this is a disease that literally changes the physiology and biology of those with it, it doesn't make sense to me that he can just 'willpower' past the other symptoms. Is there any explanations for this? Something I missed?