Maximum-likelihood tree of 42 genomes of carbapenemase-producing A. baumannii isolates. The phylogeny is based on 2,646 orthologous genes and was calculated by RAxML v8. Graphical visualization was achieved by iTOL v5. Colored rings represent (from inner to outer ring the (i) year of isolation, (ii) veterinary clinic, (iii) country of isolation, (iv) multilocus sequence type (Pasteur scheme), (v) international clone, (vi) core genome MLST complex type, (vii) core genome MLST cluster, (viii) OXA-51-like type, (ix) acquired oxacillinase type, and (x) A. baumannni resistance island type. Color of strain numbers indicates the origin of the isolates (green = cats; black = dogs; red = environment).