gene (Rota et al., 2003; Zaki et al., 2012).
FIGURE 2  Schematic structure of SARS-CoV, MERS-CoV, and 2019-nCoV. (A) Schematic diagram of genomic organization of SARS-CoV, MERS-CoV, and 2019-nCoV. The genomic regions or open-reading frames (ORFs) are compared. Structural proteins, including spike (S), envelope (E), mem