One-Health Challenge in H9N2 Avian Influenza: Novel Human-Avian Reassortment Virus in Guangdong Province, China

Figure 4

Maximum likelihood-based phylogenetic analysis of the inner genes of H9N2-subtype AIVs isolated from 2019 to 2021: (a) PB2 gene, (b) PB1 gene, (c) PA gene, (d) NP gene, (e) NS gene, and (f) M gene. H9N2 viruses isolated in this study are shown in red. The sequences inside the gray box are from human-infecting AIVs, and those inside the yellow box are from mink-infecting AIVs.

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