Some 107 youth sports camp participants at the University of Notre Dame were treated today on campus and at local hospitals for a gastrointestinal illness. All have been successfully treated for symptoms that are typical of the stomach flu and short-lived.

The cause of the illness is unknown, though it may be related to food or a virus and was not associated with any physical activity. The University is working with the St. Joseph County Health Department in an effort to determine the cause.

The participants were taking part in football, hockey, women’s basketball, women’s lacrosse and women’s tennis camps.