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Doctoral Thesis
DOI
https://doi.org/10.11606/T.42.2018.tde-19022018-113736
Document
Author
Full name
Quézia Moura da Silva
Institute/School/College
Knowledge Area
Date of Defense
Published
São Paulo, 2017
Supervisor
Committee
Huenuman, Nilton Erbet Lincopan (President)
Garcia, Doroti de Oliveira
Guimarães, Ana Marcia de Sá
Silva, Rodrigo Cayô da
Timenetsky, Jorge
Title in Portuguese
Resistência bacteriana a antimicrobianos em uma comunidade remota da Floresta  Amazônica.
Keywords in Portuguese
Enterobacteriaceae
Comunidade remota
CTX-M
ESBL
GES-5
MLST
Plasmídeos
Resistência antimicrobiana
Sequenciamento de genoma completo
Abstract in Portuguese
O objetivo deste trabalho foi investigar a presença de bactérias produtoras de β-lactamases adquiridas na microbiota Gram-negativa comensal de humanos e animais domésticos em uma comunidade remota na região da Floresta Amazônica. De março a julho de 2013 foram coletadas amostras de fezes de indivíduos atendidos e funcionários de um centro assistencial em saúde restrito a comunidades indígenas e de swab retal de animais de companhia da comunidade. Nas amostras de humanos foram detectados isolados de Escherichia coli, Klebsiella pneumoniae, Enterobacter aerogenes, Enterobacter kobei e Morganella morganii, carregando os genes blaTEM-1, blaCTX-M-15, blaCTX-M-14, blaCTX-M-8 e blaGES-5. Nas amostras de animais foram detectados apenas isolados de E. coli carregando os genes blaTEM-1, blaCTX-M-14, blaCTX-M-2 e blaCTX-M-8. Foi observada a relação clonal entre isolados de E. coli de origem humana e de origem animal. Estes resultados demonstram a disseminação de um problema endêmico em áreas urbanas para uma comunidade, em teoria, com baixa exposição a antibacterianos.
Title in English
Antimicrobial resistance in a remote community in the Amazon Forest.
Keywords in English
Enterobacteriaceae
Antimicrobial resistance
CTX-M
ESBL
GES-5
MLST
Plasmids
Remote community
Whole genome sequencing
Abstract in English
The aim of this study was to investigate the presence of acquired β-lactamase in the commensal Gram-negative microbiota of humans and domestic animals of a remote community in the Amazon Forest region. From March to July 2013 stool samples were collected from individuals attended in a health care center restricted to indigenous communities and from the local staff, and rectal swab samples were collected from companion animals in the community. In the human samples were detected Escherichia coli, Klebsiella pneumoniae, Enterobacter aerogenes, Enterobacter kobei and Morganella morganii isolates harboring blaTEM-1, blaCTX-M-15, blaCTX-M-14, blaCTX-M-8 e blaGES-5 genes. In the animal samples only E. coli strains harboring blaTEM-1, blaCTX-M-14, blaCTX-M-2 and blaCTX-M-8 were detected. The clonal relatedness between E. coli strains from human and animal samples was observed. These results demonstrate the dissemination of an urban endemic problem to a community, in theory, with low antimicrobial exposure.
 
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Publishing Date
2018-02-19
 
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