Figure 1.
The genome structures of swine coronaviruses. ORF1ab, open reading frame genes 1a and 1b; S, spike; E, envelope; M, membrane; N, nucleocapsid; HE, hemagglutinin esterase; Ns3, Ns3a, Ns3b, Ns6, Ns7, Ns7a, Ns7b, accessory genes.
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