Whats up with NFL QBs getting injured all of sudden?

Sorry, not including Brett Favre in here. Mean it all started with Matt Cel's appendix and thank god it didn't happen during a game or practice. Still prevented it Cel from practicing all of last week and caused him to miss the next game (which was on the road). Then, Aaron Rodger's 2nd concussion. Which Rodgers missed the rest of that game, this entire week, game. Also, Kyle Orton is injured as well. Not quite sure what Orton's injury is for sure and etc.