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. 2022 Jul 4;7:75. doi: 10.1038/s41541-022-00503-y

Fig. 5. Schematic representation of a poxvirus genome flanked by one origin for DNA replication and one terminal loop.

Fig. 5

The central region of the genome contains a conserved series of genes needed for viral replication. The two flanking regions code for several proteins that help determine virulence. When used as a viral vector in vaccinations, the D1–13 transcription units (indicated between the dotted lines) are replaced by the transgene of choice.