Abstract
The recent emergence of the novel coronavirus (SARS-CoV-2/COVID-19) has quickly become a worldwide threat to health, causes severe respiratory syndrome in human. SARS-Cov-2 likely facilitates entry into cells via Angiotensin-converting enzyme 2 (ACE2) expressed by pneumocytes, pulmonary macrophages, heart, kidneys and intestine. The physiological role of ACE2 is in the maturation of angio…