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Maximum composite likelihood amino acid tree, using Poisson model with 1000 bootstrap replicates of 65 NA sequences (nt 28–1395) of H3N8 EIVs available in GenBank and GISAID EpiFlu™ for the Florida Clade 1 (FC1), Florida Clade 2 (FC2), Kentucky, Eurasian and Pre-divergent lineages. The virus characterized in the present study is indicated by a diamond (♦).
