Uranium. Does. Not. Have. The. Power. To. Mutate. Humans.
Uranium. Is. Not. A. Virus.
If it was, Japan would've been infected with zombies a long time ago.
Uranium is radioactive meaning it emits particles small enough to penetrate the human bodies outside. A common misconception is that a particle can knock out a pice of DNA (Which is true) and cause a mutation such as a superpower. Unless you think cancer is a superpower, than your in luck.
But uranium does have to power to mutate humans, or any other living being for that matter.