In December 2017, seven patrons became ill after eating at a restaurant in the Seward neighborhood of Minneapolis, Minnesota. The implicated meal date was December 23. No one was hospitalized and no one died. No one submitted a stool specimen for testing.

All cases reported diarrhea, six (86%) reported cramps, and five (71%) reported vomiting. The median incubation period was 30 hours (range, 3 to 38.5 hours). The median duration of illness for the five cases who had recovered at time of interview was 32 hours (range, 14 to 76 hours)

Cases reported eating a variety of foods from the menu. In univariate analysis, consumption of the Greek salad (2 of 5 cases vs. 1 of 60 controls; odds ratio [OR], 24.0; 95% confidence interval [CI], 1.8 to 3130; p=0.02) and consumption of the pesto turkey hoagie (2 of 5 cases vs. 1 of 60 controls; OR, 24; 95% CI, 18 to 313; p=0.02) were significantly associated with illness.

Minneapolis Health Department sanitarians interviewed 77 of 86 restaurant employees. Six employees reported recent gastrointestinal illness, with symptoms of nausea, vomiting or diarrhea. Onset dates for these illnesses ranged from December 7 to December 23. This led Investigators concluded that one or more ill employees were the likely source of the outbreak.