User blog comment:Kogath/Monster Hunter 4 Ultimate for the Nintendo 3DS/@comment-22748142-20141029094027/@comment-4009941-20141030234331

You know according to MH4 the Virus is not exactly new. It said the whole Heavenly mountains ecosystem died and restart. So with extreme monsters I assume monsters will get immune to the Virus and then next generation or who knows maybe Gore takes multiple generations to show up again because it sure stayed a myth for a VERY long time in its native home. This is just my idea because maybe after some generations of immune monsters go by the later ones will no longer be immune and cycle restarts. Because somehow the whole virus dissapears for a VERY long time then shows up again. So long that it had to have time to become only a myth.