"Well, the marrow in your bones are being altered so that your virus can produce from them. It will use your marrow to grow, slowly seeping into your mind. If my predictions are right, you'll have a personality that taps into your cultural heritage. It'll probably name itself after something lonely in your mythos. Our best hope, since you rejected the arm comp, would be-" Bryce has one eye well with blood. "actually, we may be able to guess a bit more about the emerging personality..."
@furi the reasoning was that it was a small dose that would kill itself healing his wounds. Then Royce showed up and healed all the wounds, meaning the virus didn't need to burn itself out. Of course, that's the official explanation...