Diarrhea: 8.6% (56)Present on admission and prior to treatment.Defined as loose stool >3 times daily. Stool cultures were performed with negative results for all patients. Clostridium difficile not detected in stool and no recent antibiotic use.Median duration was 4 d (IQR, 3–6 d, range, 1–9 d). Most was self-limiting.Nausea/vomiting: 4.3% (28)Present on admission.11 only vomiting; 10 only nausea; 3 nausea, vomiting and diarrhea; 4 nausea and vomiting.Any GI Symptom: 11.4 (74)Nausea, vomiting or diarrhea.21 patients lacked respiratory symptoms of coughing and sputum production, and presented only with GI symptomsSevere/critical: 17/74 with GI symptoms vs 47/577 without GI symptom. In those with GI symptoms, risk factors for severe/critical disease were sputum production, increased lactate dehydrogenase and increased glucose on multivariate analysis.ARDS: 5/74 with GI symptoms vs 12/577 without GI symptomShock: 1/74 with GI symptoms vs 1/577 without GI symptomLiver injury: 13/74 with GI symptoms vs 51/577 without GI symptomMechanical ventilation: 5/74 with GI symptoms vs 12/577 without GI symptom ICU admission: 5/74 with GI symptoms vs 12/577 without GI symptom