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Phylogenetic analysis of the neuraminidase (NA) gene from influenza B (Victoria lineage) viruses detected in this study. The phylogenetic tree was constructed by the maximum likelihood method using IQ‐TREE with substitution model selection (ModelFinder implemented in IQ‐TREE) option and 1000 bootstraps. The best‐fit model according to Bayesian information criterion: HKY + F (NA). Bootstrap values are shown if >70%.
