I am pretty sure this virus was cooked up in a lab. Even if this thing popped up in District X it seems odd that this virus has not spread outside the mutant population. Though it would be possible for the virus to evolve to latch on to the X-gene naturally it is incredibly improbable. It would be like a lake freezing in summer, within the laws of physics but so unlikely you discount it.

Anyways I will get back to you when I have more information from Dr. McCoy. Talk to you soon.

(ooc: Next time Viti contacts, assume some time has gone by, as he's waiting for the good doctor to get back to him.)