Figure 1. Schematic representation of the structure of SARS-CoV-2 virus. SARS-CoV-2 virus is made up of primarily spike (S), membrane (M), envelope (E), and nucleocapsid (N) structural proteins, embedded in the lipid bilayer of the viral envelope. In contrast, the N glycoprotein is associated with the genomics RNA, which is approximately 30 kb, of the virion.