ACE2 and COVID-19: Strikingly, extensive organ damage in COVID-19 occurs due to ACE2 (angiotensin-converting enzyme 2) expression [12,13], allowing SARS-CoV-2 to enter host cells due to several receptors and accessory proteins, including CD147, NRP-1, CD26, AGTR2, Band3, KREMEN1, ASGR1, ANP, TMEM30A, CLEC4G, and LDLRAD3, which promote entry into human cells.