Abstract

Abstract Acinetobacter baumannii is an aerobic gram-negative opportunistic bacterial pathogen, an emerging cause of healthcare-associated infections, associated with increased morbidity, mortality and healthcare costs. It has been widely found in the hospital environment, exhibiting high resistance to antimicrobials, affecting the spread of healthcare-associated infections and preventing effective infection control. The role of virulence factors in the pathogenesis of A. baumannii related human infections remains unclear. Therefore, molecular testing of pathogenic bacteria is an important tool for improving infection control measures against A. baumannii with combined resistance. The aim of this study was to analyse A. baumannii infection cases, antimicrobial resistance profiles and to characterise the genetic heterogeneity of isolates. In general, outbreaks occurring in hospitals are presumed to be clonal, with patient-to-patient transmission of essentially identical strains. Treatment decisions are based on a combination of in vitro susceptibility assays and empirical results based on patient outcomes.

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