Over half of the employees who attended the employee appreciation luncheon at Emerson Precision became ill with Norovirus. The investigation revealed that food workers from a restaurant that provided the event's sandwiches, salads, and cookies had also been ill, but they had not been involved in preparing food or serving food at the employee luncheon. It was not revealed whether any of the employees were confirmed to have norovirus in their stool. No food remained for testing. The luncheon had been held on a Friday. The restaurant catered other events over the following weekend, using the same menu, and no other illness outbreaks occurred.