Angiotensin-converting enzyme 2 (ACE2) receptor is the binding site of SARS-CoV-1 and-2 viruses and these receptors are strongly expressed in pancreatic cells, and initial findings hypothesized that the SARS-CoV-1 virus enters pancreatic cells via the ACE2 receptor and leads to the destruction of β-cells and, consequently, the appearance of a diabetes mellitus (10). This evidence concerns the gene ACE2 and diabetes mellitus.