Detection of a novel clone of Acinetobacter baumannii isolated from a dog with otitis externa

In this study, the isolation ofAcinetobacter baumanniiin a dog with clinical bilateral otitis externa is described.Moreover, to investigate the zoonotic potential of the isolate, microbiological examinations on the familymembers were performed. AnA. baumanniistrain was isolated from nasal swab in one of the dog owners. Theidentity of bacterial strains, either from dog and owner, was confirmed by phenotypic and molecular typing(wgMLST). Furthermore, to assess the pathogenic potential of the isolates a deep characterization of virulenceand antibiotic resistance genes was done by Whole Genome Sequencing (WGS). Finally, the susceptibility to-wards a wide panel of antimicrobials was investigated. In our knowledge, this is thefirst recorded case ofA.baumanniiisolation from canine auricular swabs in Italy. And interestingly, this study underlines the possiblespread of this microorganism from human to animal