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© Research
Publication : Brazilian journal of microbiology : [publication of the Brazilian Society for Microbiology]

Spread of multidrug-resistant Acinetobacter baumannii isolates belonging to IC1 and IC5 major clones in Rondônia state.

Scientific Fields
Diseases
Organisms
Applications
Technique

Published in Brazilian journal of microbiology : [publication of the Brazilian Society for Microbiology] - 09 Feb 2022

Barcelos Valiatti T, Silva Carvalho T, Fernandes Santos F, Silva Nodari C, Cayô R, da Silva JTP, da Silva CC, Ferreira JA, Moura LB, Dos Santos LA, Gales AC,

Link to Pubmed [PMID] – 35141834

Link to DOI – 10.1007/s42770-022-00706-4

Braz J Microbiol 2022 Feb; ():

In Brazil, carbapenem-resistant A. baumannii (CRAB) is a critical pathogen showing high carbapenem resistance rates. Currently, there is little epidemiological data on A. baumannii isolated in the Northern Brazilian region. Herein, this study aimed to characterize the resistance mechanisms of CRAB isolates recovered from hospitalized patients in the state of Rondônia in 2019. Most of CRAB were considered as extensively drug-resistant, and some of them showed high MICs for minocycline. Only polymyxins showed a satisfactory activity. All isolates carried blaOXA-23 and were included in 14 distinct clusters, with the predominance of clonal group A (29%). The IC1 was the most frequent clonal group, followed by IC5 and IC4. Here, we firstly reported the epidemiological scenario of CRAB in the state of Rondônia, located in the Brazilian Amazon region. The high frequency of CRAB presenting XDR phenotype is of great concern, due to limited therapeutical options, especially in the actual pandemic scenario, in which we observed an overcrowding of ICU beds. Such results are essential to better characterize the epidemiology of CRAB in the entire Brazilian territory.

https://pubmed.ncbi.nlm.nih.gov/35141834