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. 2019 Mar 1;7:e6561. doi: 10.7717/peerj.6561

Figure 1. Minimum-Spanning-Tree of 462 hemagglutinin gene sequences of “Old-World”-orthopoxviruses retrieved from NCBI (March 2018).

Figure 1

Each circle corresponds to a unique sequence with circle sizes relative to the number of identical sequences. Individual species of the genus Orthopoxvirus are labelled by different colors. CPXV, Cowpox virus, light-blue; MPXV, Monkeypox virus, red; VARV, Variola virus, green; VACV, Vaccinia virus, dark-blue; TATV, Tatera poxvirus, pink; ECTV, Ectromelia virus, yellow; CMLV, Camelpox virus, beige.