Fig. 1.

Genomic epidemiology of Staphylococcus aureus outbreak isolates from PNG (n = 95) and FNQ (n = 89). (A) Map of sampling locations, multilocus sequence types, and predominant symptoms of patients (ring annotation) (B) Global evolutionary history of the Australian lineage (ST93) showing the rooted ML phylogeny constructed from a nonrecombinant core-genome SNP alignment (n = 575) and major regional geographical structures in the evolutionary history of the clone. ST93 emerged in remote communities of north Western Australia and acquired SCCmec-IV, spreading to the AEC (blues, yellow), remote northern Australian communities (orange, red), the remote highlands of PNG (green), and into Auckland communities in NZ (sea green).