I was there and also have gone for 20 or so years. Great things happen at Harmony tht happen nowhere else. It is not clear what caused the illness, but it wouldn't hurt to review rules with kitchen staff. Though we haven't had this sort of thing before, we can always improve our precautions. This was the worst series of problems I've ever encountered at camp, but I have to add that the days leading up to it were wonderful. The storms and power problems were out of our control.