Recently buying a copy of Diamond from Game Stop, I found myself extremely lucky. Every Pokemon I had ever wanted was in this unerased game. Now all I need is another DS to transfer them to Black. That aside, I also felt lucky at having Pokemon with Pokerus, but the one thing that struck me as odd were of the many eggs left behind by the previous owner of the game, quite a number of the Spiritombs, Eevees, and Aerodactyls were born with Pokerus.
Does being born with pokerus incite the same infection possibilites of catching it in the wild?