I not sure if my son had it or not, they told him no at the drs. office, but i'm sure he had it.. my other 2 did not get it neither did me or my wife... I had a friend who got it, it knocked him pretty good then he got phnemonia from it was off work for 2 weeks. His wife had it for 2 days, his kids didnt get it.. I've heard it hit some hard and some not at all...