A GASTROENTERITIS ILLNESS OUTBREAK ASSOCIATED WITH SWIMMING IN A CAMPGROUND LAKE

A gastroenteritis illness outbreak occurred at a campground on June 11 -13, 1993, in Oakland County, Michigan. The 626-acre campground contai ns six man-made lakes and is served by municipal sewer and vault privi es. The potable water source is from on-site well supplies. Of the 111 telephone interviews conducted, 53 persons were identified as ill, pr edominantly with diarrhea, vomiting, and abdominal cramps. There was a n association between illness and swimming in one of the man-made lake s. The investigation indicated a potential viral etiology. The source may have been an incontinent swimmer.