This outbreak occurred at one of the cafeterias located in the out patient department which serves approximately 600 visitors and employees daily. We will call this cafeteria ‘cafeteria A’. To give you an idea we are dealing with a 940 bed hospital with 4 cafeterias and a few restaurants.

On December 9, 1997 individuals who had eaten at cafeteria A reported nausea and projectile vomiting after eating a noon meal.