Extensively drug-resistant ArmA-producing acinetobacter baumannii in an Italian intensive care unit

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Journal Article
New Microbiologica, 2018, 41 (2), pp. 159 - 161
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© 2018 by EDIMES - Edizioni Internazionali Srl. All rights reserved. We describe the spread of 12 carbapenem-resistant Acinetobacter baumannii isolates in hospitalized patients. All strains showed an extensively drug-resistant phenotype and high-level of aminoglycoside resistance, harboring the ArmA gene and blaoxa-23 downstream of ISAba1 (transposon Tn2008 arrangement) where both were located on the chromosome. These strains carry a class 1 integron containing the gene cassette aacA4-catB8-aadA1. Molecular analysis revealed that all isolates belonged to the same sequence type (ST) 2 clone. The spread of ArmA-producing A. baumannii strains limit the treatment options showing the dramatic situation which requires novel therapies to limit high mortality rates.
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