https://www.cbsnews.com/news/coronavirus-digestive-symptoms-diarrhea-almost-half-of-patients/
"Clinicians must bear in mind that digestive symptoms, such as diarrhea, may be a presenting feature of COVID-19, and that the index of suspicion may need to be raised earlier in these cases rather than waiting for respiratory symptoms to emerge," wrote the investigators from the Wuhan Medical Treatment Expert Group for COVID-19.