User blog comment:Mckrongs/Monster Hunter 4 for the Nintendo 3DS/@comment-121.220.52.69-20130310005413/@comment-5853890-20130311032612

I think it would be more like this

Just for regular questiing: On any quest, the infection would be like the unstable system.

For storyline: You have to find a specific monster who is thought to be infected.