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Phylogenetic tree of the HA segment of the poultry, captive, and wild bird viruses sequenced. HPAI H5N8 viruses sequenced in this study are shown in blue, H5N1 in green, H5N3 in orange, H5N4 in purple, and H5N5 in brown. Variants are marked by A or B. Reference viruses from other countries are shown in black. The reassortments for all gene segments are schematically shown. The closest related viruses for each gene segment are listed and are marked by color.
