Oxacillinase (OXA)-producing Acinetobacter baumannii in Brazil: clinical and environmental impact and therapeutic options

Following a worldwide trend, infections caused by MDR OXA-type (Ambler class D) carbapenemase-producing Acinetobacter baumannii are currently regarded as a clinical and epidemiological emergency in Brazil. OXA-producing A. baumannii strains have been identified in the states of Alagoas, Amazonas, Ba...

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Main Authors: Micheli Medeiros, Nilton Lincopan
Format: Article
Language:English
Published: Sociedade Brasileira de Patologia Clínica 2013-12-01
Series:Jornal Brasileiro de Patologia e Medicina Laboratorial
Subjects:
Online Access:http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-24442013000600003&lng=en&tlng=en
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author Micheli Medeiros
Nilton Lincopan
author_facet Micheli Medeiros
Nilton Lincopan
author_sort Micheli Medeiros
collection DOAJ
description Following a worldwide trend, infections caused by MDR OXA-type (Ambler class D) carbapenemase-producing Acinetobacter baumannii are currently regarded as a clinical and epidemiological emergency in Brazil. OXA-producing A. baumannii strains have been identified in the states of Alagoas, Amazonas, Bahia, Distrito Federal, Espírito Santo, Goiás, Mato Grosso, Mato Grosso do Sul, Minas Gerais, Paraná, Pernambuco, Rio de Janeiro, Rio Grande do Norte, Rio Grande do Sul, Santa Catarina and São Paulo. In some settings, the presence of OXA-23- and/or OXA-143 -producing A. baumannii (so far restricted to Brazil) has been endemic and A. baumannii strains carrying blaOXA-23 genes have been detected in hospital wastewater effluents, hence a potential risk to the community and the environment. Although molecular typing by multilocus sequence typing (MLST - Bartual scheme, University of Oxford, http://pubmlst.org/abaumannii/) has revealed the international spread of a clonal complex (CC) denominated CC92, in Brazil most OXA-23-producing A. baumannii belong to CC113, CC109 or CC104 clonal complexes. Finally, from a clinical point of view, the main problem of A. baumannii infections is the limited use of antibacterial agents with in vitro activity, often restricted to ampicillin/sulbactam, polymyxin B and/or colistin (polymyxin E).
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spelling doaj.art-e0d1eb9dfd44405fafb6206e70be4be62022-12-21T18:57:41ZengSociedade Brasileira de Patologia ClínicaJornal Brasileiro de Patologia e Medicina Laboratorial1678-47742013-12-0149639140510.1590/S1676-24442013000600003S1676-24442013000600003Oxacillinase (OXA)-producing Acinetobacter baumannii in Brazil: clinical and environmental impact and therapeutic optionsMicheli Medeiros0Nilton Lincopan1Universidade de São PauloUniversidade de São PauloFollowing a worldwide trend, infections caused by MDR OXA-type (Ambler class D) carbapenemase-producing Acinetobacter baumannii are currently regarded as a clinical and epidemiological emergency in Brazil. OXA-producing A. baumannii strains have been identified in the states of Alagoas, Amazonas, Bahia, Distrito Federal, Espírito Santo, Goiás, Mato Grosso, Mato Grosso do Sul, Minas Gerais, Paraná, Pernambuco, Rio de Janeiro, Rio Grande do Norte, Rio Grande do Sul, Santa Catarina and São Paulo. In some settings, the presence of OXA-23- and/or OXA-143 -producing A. baumannii (so far restricted to Brazil) has been endemic and A. baumannii strains carrying blaOXA-23 genes have been detected in hospital wastewater effluents, hence a potential risk to the community and the environment. Although molecular typing by multilocus sequence typing (MLST - Bartual scheme, University of Oxford, http://pubmlst.org/abaumannii/) has revealed the international spread of a clonal complex (CC) denominated CC92, in Brazil most OXA-23-producing A. baumannii belong to CC113, CC109 or CC104 clonal complexes. Finally, from a clinical point of view, the main problem of A. baumannii infections is the limited use of antibacterial agents with in vitro activity, often restricted to ampicillin/sulbactam, polymyxin B and/or colistin (polymyxin E).http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-24442013000600003&lng=en&tlng=enIRASmultirresistênciacarbapenêmicosoxacilinasesOXA-23OXA-143MLST
spellingShingle Micheli Medeiros
Nilton Lincopan
Oxacillinase (OXA)-producing Acinetobacter baumannii in Brazil: clinical and environmental impact and therapeutic options
Jornal Brasileiro de Patologia e Medicina Laboratorial
IRAS
multirresistência
carbapenêmicos
oxacilinases
OXA-23
OXA-143
MLST
title Oxacillinase (OXA)-producing Acinetobacter baumannii in Brazil: clinical and environmental impact and therapeutic options
title_full Oxacillinase (OXA)-producing Acinetobacter baumannii in Brazil: clinical and environmental impact and therapeutic options
title_fullStr Oxacillinase (OXA)-producing Acinetobacter baumannii in Brazil: clinical and environmental impact and therapeutic options
title_full_unstemmed Oxacillinase (OXA)-producing Acinetobacter baumannii in Brazil: clinical and environmental impact and therapeutic options
title_short Oxacillinase (OXA)-producing Acinetobacter baumannii in Brazil: clinical and environmental impact and therapeutic options
title_sort oxacillinase oxa producing acinetobacter baumannii in brazil clinical and environmental impact and therapeutic options
topic IRAS
multirresistência
carbapenêmicos
oxacilinases
OXA-23
OXA-143
MLST
url http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-24442013000600003&lng=en&tlng=en
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