Fig. 3

Clonal relationship of the isolates. The dendrogram depicts the phylogenetic relationship of the isolates. Cluster A consists of nine isolates from wave 3 with 93.2% similarity, while Cluster B consists of 41 isolates from waves 3, 4, and 5 with 83.8% similarity. The blaOXA−51−like gene, specific to A. baumannii species, was present in all isolates but is not displayed on the dendrogram. The blaOXA−58, blaOXA−143, blaVEB−1, blaVIM, and int-3 genes, which were absent in all isolates, are also not shown.