title: The Acinetobacter baumannii group: a systemic review.
abstract: BACKGROUND
  The Acinetobacter baumannii group, including Acinetobacter baumannii, Acinetobacter genomospecies 3 and 13TU, is phenotypically indistinguishable and uniformly identified as Acinetobacter baumannii by laboratories of clinical microbiology. This review aimed to demonstrate the differences among them.
  
  
  METHODS
  Literatures associated with the Acinetobacter baumannii group were identified and selected from PubMed databases and relevant journals.
  
  
  RESULTS
  Acinetobacter genospecies 3 and 13TU possess a certain proportion in clinical isolates. There were considerable differences in epidemiologic features, clinical manifestations, antimicrobial resistances and therapeutic options among the Acinetobacter baumannii group. Compared with Acinetobacter genomospecies 3 and 13TU, Acinetobacter baumannii with a higher resistance to antimicrobial agents are easier to be treated inappropriately, and present a worse outcome in patients.
  
  
  CONCLUSIONS
  The Acinetobacter baumannii group comprises three distinct clinical entities, and their clinical value are not equal.
authors.affiliation: Department of Emergency Medicine, First Affiliated Hospital, Nanjing Medical University, Nanjing 210029, China.
authors.forename: Hua-Zhong
authors.initials: HZ
authors.lastname: Zhang
authors.affiliation: Department of Emergency Medicine, First Affiliated Hospital, Nanjing Medical University, Nanjing 210029, China.
authors.forename: Jin-Song
authors.initials: JS
authors.lastname: Zhang
authors.affiliation: Department of Emergency Medicine, First Affiliated Hospital, Nanjing Medical University, Nanjing 210029, China.
authors.forename: Li
authors.initials: L
authors.lastname: Qiao
keywords: Acinetobacter baumannii; Acinetobacter genomospecies 13TU; Acinetobacter genomospecies 3; Difference