It seems that every other reviewer has said that there was Noro on their ship. Is it really that prevelant? I worry about it even though it is something that is beyond my control. I dont get sick. eriously, I think the only time I was sick in the last 10 years is one time when I picked up strep throat from one of our boys. I just worry that one of us will pick it up and it will ruin our trip.