About 27% of SARS patients have diarrhea and since full-length genome sequences identified that SARS-CoV-2 is 79.5% identical to SARS-CoV and shares the same receptor angiotensin-converting enzyme 2 (ACE2), it is estimated that the rate of gastrointestinal symptoms would be higher in patients with COVID-19 [10]. The gene discussed is ACE2; the disease is COVID-19.