MHA-What if?

Intro What if, Overhaul(Kai Chisaki) was correct about the quirks being a disease? How would that play out? Symptoms- 1st stage- mild strengthening of quirk, and using it a little without realizing it(Water=More usage of creating, or controlling of water without the user relizing it, and things like that with every other quirk) 2nd stage- Quirk strengthens a lot more, and the user is constantly using it, now they're aware that they have the disease. 3rd stage- The quirk starts taking over the body, it can no longer be cured at this stage, but victim is not aggressive. 4th stage- The quirk overtakes the body, and now the user will attack anyone close to them, they'd need to be contained right away at this stage. 5th stage- The victim starts to decay, while also attacking anyone victim sees/hears, they're hearing and sight strengthen(If victim is blind, they gain sight, if they're deaf, they gain hearing) 6th stage- usually victim dies at this stage, but they're basically already dead, just with a consousness, they cannot move anymore. 7th stage: If a victim reaches this stage, anyone close to them will get infected, they release germs that will infect anyone within a kilometer radious of them. How was this disease found out about- Overhaul, he first saw the signs, and now, the heroes knew he was true about it. Overhaul has his arms. Overhaul hasn't yet had the crap kicked outta him by Deku. **I do not own Kai, nor do I own MHA, all the credit for the character goes to the creator and anyone who helped in the creation of MHA.** This idea is mine though.