title: Characterization of genetic diversity of carbapenem-resistant Acinetobacter baumannii clinical strains collected from 2004 to 2007.
abstract: Genotypes of carbapenem-resistant Acinetobacter baumannii collected by the clinical microbiology laboratory of a university hospital in Chicago, IL, between 2004 and 2007 were analyzed by pulsed-field gel electrophoresis. A single genotype established predominance after being introduced in 2005. Analysis of carbapenemases by PCR revealed that imipenem resistance but not meropenem resistance was associated with the presence of bla(OXA-23) and bla(OXA-40) genes.
authors.affiliation: Department of Pathology, Northwestern University Feinberg School of Medicine, Chicago, IL 60611, USA. cqi451@northwestern.edu
authors.forename: Chao
authors.initials: C
authors.lastname: Qi
authors.forename: Michael
authors.initials: M
authors.lastname: Malczynski
authors.forename: Michelle
authors.initials: M
authors.lastname: Parker
authors.forename: Marc H
authors.initials: MH
authors.lastname: Scheetz
mesh_terms: D000151:Acinetobacter Infections / Q000382:microbiology*; D040981:Acinetobacter baumannii / Q000145:classification* / Q000187:drug effects* / Q000235:genetics / Q000302:isolation & purification; D000900:Anti-Bacterial Agents / Q000494:pharmacology*; D015780:Carbapenems / Q000494:pharmacology*; D024881:Drug Resistance, Bacterial; D016521:Electrophoresis, Gel, Pulsed-Field; D014644:Genetic Variation; D005838:Genotype; D006801:Humans; D015378:Imipenem / Q000494:pharmacology; D000077731:Meropenem; D008826:Microbial Sensitivity Tests; D013845:Thienamycins / Q000494:pharmacology; D001618:beta-Lactamases / Q000235:genetics
chemical_list: D000900:Anti-Bacterial Agents; D015780:Carbapenems; D013845:Thienamycins; D015378:Imipenem; C466679:beta-lactamase OXA-23; D001618:beta-Lactamases; C488541:beta-lactamase OXA-40, Acinetobacter baumannii; D000077731:Meropenem