Maximum likelihood tree of 1,557 <i>K</i>. <i>pneumoniae</i> strains.

<p>A phylogenetic tree was built using a 2,253,033 bp long core alignment. Contextual information relevant to the collection was visualized using Phandango and includes ST (of which the major ones are indicated on the tree); GD or TD insertion in the loop L3 of <i>ompK36</i>, in black and red, respectively; presence or absence of <i>ompK36</i>, in orange and purple, respectively; presence or absence of <i>ompK35</i>, in orange and purple, respectively. Additional metadata include year of isolation, in a gradient from purple to yellow; source and geographical region of isolation in a rainbow gradient; and presence of major beta-lactamases (<i>bla</i>) alleles identified, in dark blue.</p>