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Bayesian phylogenetic and phylogeographic analyses of FQR1 and FQR2 strains. The computational tool BEAST2 was used to incorporate time and geography variables with the single-nucleotide polymorphism analysis. (A) Phylogenetic analyses are plotted with US Food and Drug Administration approval dates for certain fluoroquinolones. (B) Predictive dissemination of FQR1 (red lines) and FQR2 (blue lines) strains worldwide and (C) within Texas.
