ACE2 and diabetes mellitus: It is possible that COVID-19 predispose patients to newly onset DM or the ones with preexisting DM to experience worsening of glycemic control or full blown DKA, as SARS CoV-2 infection is associated with high expression of angiotensin-converting enzyme 2 (ACE2) receptor in pancreatic islets (potentially destroying these cells), along with increased insulin resistance due to cytokine storm (Kothandaraman et al., 2021).