Figure 2. Dendrogram for characterization of Burkholderia pseudomallei isolate TX2018b from a 63-year-old man in Texas, USA, by comparison with reference genomes. Maximum-parsimony phylogenetic analysis based on core single-nucleotide polymorphisms (SNP) by using Parsnp, a component of the Harvest 1.3 software (https://github.com/marbl/harvest). Bold indicates clusters of genomes associated with the southwestern United States; the 2004 patient resided in the same county as the patient described in this article. Numbers at each node are bootstrap percentages. Scale bar indicates nucleotide substitutions per SNP.