Health officials are trying to figure out why 40-kids got sick last week at a 4-H camp in Monticello. The kids were vomiting and spending lots of time in the bathroom, with diarrhea.  Officials say they're having a hard time pinpointing exactly what caused the illness because the kids got sick at different times.  Some started getting sick early last week while others started complaining as late as Wednesday.  At this point they're not sure if one of the 300-kids who attended the camp transferred it on to the others, or if they got sick from maybe eating something at the camp.  Health crews are doing a sweep of the grounds before a new bunch of kids come in for camp.