Antimicrobial susceptibility and pathogenicity of Escherichia coli strains of environmental origin

Detalhes bibliográficos
Autor(a) principal: Carvalho,Daiane
Data de Publicação: 2015
Outros Autores: Finkler,Fabrine, Grassotti,Tiela Trapp, Kunert Filho,Hiran Castagnino, Lima,Francisco Esmaile de Sales, Soares,Beatriz Dugaich, Rossato,Juliana Marzari, Cunha,Augusto César da, Brito,Kelly Cristina Tagliari de, Brito,Benito Guimarães de
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Ciência Rural
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782015000701249
Resumo: The study aimed to evaluate the antimicrobial susceptibility of 109 samples of Escherichia coli (E. coli) of environmental origin and to characterize these isolates according to the degree of pathogenicity in vivo, verifying a possible relationship between this variable and susceptibility to the active principles tested. The isolates were subjected to disc diffusion test to 14 antibiotics. From 16.5% to 90% of the samples were sensitive; 1 - 28.5% showed intermediate degree of susceptibility and between 9 to 78% of E. coli analyzed were resistant. The highest resistance percentages were seen in the class of quinolones and tetracyclines (>75%), and for sensitivity in the class of amphenicols (68.8%). By inoculating 1- day - old chicks, the isolates were classified as highly pathogenic (2.7%), intermediate (10.1%), low (42.2%) and apathogenic (45%). It was observed a wide variation in the susceptibility profile of isolates in relation to antimicrobials. It was also found that most of the samples had pathogenic potential (55%), thus being considered as APEC (avian pathogenic E. coli). No relationship between pathogenicity and antimicrobial susceptibility (P≤0.05) was observed.
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spelling Antimicrobial susceptibility and pathogenicity of Escherichia coli strains of environmental originEscherichia coliresistanceantimicrobialspathogenicitypoultry.The study aimed to evaluate the antimicrobial susceptibility of 109 samples of Escherichia coli (E. coli) of environmental origin and to characterize these isolates according to the degree of pathogenicity in vivo, verifying a possible relationship between this variable and susceptibility to the active principles tested. The isolates were subjected to disc diffusion test to 14 antibiotics. From 16.5% to 90% of the samples were sensitive; 1 - 28.5% showed intermediate degree of susceptibility and between 9 to 78% of E. coli analyzed were resistant. The highest resistance percentages were seen in the class of quinolones and tetracyclines (>75%), and for sensitivity in the class of amphenicols (68.8%). By inoculating 1- day - old chicks, the isolates were classified as highly pathogenic (2.7%), intermediate (10.1%), low (42.2%) and apathogenic (45%). It was observed a wide variation in the susceptibility profile of isolates in relation to antimicrobials. It was also found that most of the samples had pathogenic potential (55%), thus being considered as APEC (avian pathogenic E. coli). No relationship between pathogenicity and antimicrobial susceptibility (P≤0.05) was observed.Universidade Federal de Santa Maria2015-07-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782015000701249Ciência Rural v.45 n.7 2015reponame:Ciência Ruralinstname:Universidade Federal de Santa Maria (UFSM)instacron:UFSM10.1590/0103-8478cr20141020info:eu-repo/semantics/openAccessCarvalho,DaianeFinkler,FabrineGrassotti,Tiela TrappKunert Filho,Hiran CastagninoLima,Francisco Esmaile de SalesSoares,Beatriz DugaichRossato,Juliana MarzariCunha,Augusto César daBrito,Kelly Cristina Tagliari deBrito,Benito Guimarães deeng2015-07-15T00:00:00ZRevista
dc.title.none.fl_str_mv Antimicrobial susceptibility and pathogenicity of Escherichia coli strains of environmental origin
title Antimicrobial susceptibility and pathogenicity of Escherichia coli strains of environmental origin
spellingShingle Antimicrobial susceptibility and pathogenicity of Escherichia coli strains of environmental origin
Carvalho,Daiane
Escherichia coli
resistance
antimicrobials
pathogenicity
poultry.
title_short Antimicrobial susceptibility and pathogenicity of Escherichia coli strains of environmental origin
title_full Antimicrobial susceptibility and pathogenicity of Escherichia coli strains of environmental origin
title_fullStr Antimicrobial susceptibility and pathogenicity of Escherichia coli strains of environmental origin
title_full_unstemmed Antimicrobial susceptibility and pathogenicity of Escherichia coli strains of environmental origin
title_sort Antimicrobial susceptibility and pathogenicity of Escherichia coli strains of environmental origin
author Carvalho,Daiane
author_facet Carvalho,Daiane
Finkler,Fabrine
Grassotti,Tiela Trapp
Kunert Filho,Hiran Castagnino
Lima,Francisco Esmaile de Sales
Soares,Beatriz Dugaich
Rossato,Juliana Marzari
Cunha,Augusto César da
Brito,Kelly Cristina Tagliari de
Brito,Benito Guimarães de
author_role author
author2 Finkler,Fabrine
Grassotti,Tiela Trapp
Kunert Filho,Hiran Castagnino
Lima,Francisco Esmaile de Sales
Soares,Beatriz Dugaich
Rossato,Juliana Marzari
Cunha,Augusto César da
Brito,Kelly Cristina Tagliari de
Brito,Benito Guimarães de
author2_role author
author
author
author
author
author
author
author
author
dc.contributor.author.fl_str_mv Carvalho,Daiane
Finkler,Fabrine
Grassotti,Tiela Trapp
Kunert Filho,Hiran Castagnino
Lima,Francisco Esmaile de Sales
Soares,Beatriz Dugaich
Rossato,Juliana Marzari
Cunha,Augusto César da
Brito,Kelly Cristina Tagliari de
Brito,Benito Guimarães de
dc.subject.por.fl_str_mv Escherichia coli
resistance
antimicrobials
pathogenicity
poultry.
topic Escherichia coli
resistance
antimicrobials
pathogenicity
poultry.
description The study aimed to evaluate the antimicrobial susceptibility of 109 samples of Escherichia coli (E. coli) of environmental origin and to characterize these isolates according to the degree of pathogenicity in vivo, verifying a possible relationship between this variable and susceptibility to the active principles tested. The isolates were subjected to disc diffusion test to 14 antibiotics. From 16.5% to 90% of the samples were sensitive; 1 - 28.5% showed intermediate degree of susceptibility and between 9 to 78% of E. coli analyzed were resistant. The highest resistance percentages were seen in the class of quinolones and tetracyclines (>75%), and for sensitivity in the class of amphenicols (68.8%). By inoculating 1- day - old chicks, the isolates were classified as highly pathogenic (2.7%), intermediate (10.1%), low (42.2%) and apathogenic (45%). It was observed a wide variation in the susceptibility profile of isolates in relation to antimicrobials. It was also found that most of the samples had pathogenic potential (55%), thus being considered as APEC (avian pathogenic E. coli). No relationship between pathogenicity and antimicrobial susceptibility (P≤0.05) was observed.
publishDate 2015
dc.date.none.fl_str_mv 2015-07-01
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782015000701249
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782015000701249
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/0103-8478cr20141020
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv text/html
dc.publisher.none.fl_str_mv Universidade Federal de Santa Maria
publisher.none.fl_str_mv Universidade Federal de Santa Maria
dc.source.none.fl_str_mv Ciência Rural v.45 n.7 2015
reponame:Ciência Rural
instname:Universidade Federal de Santa Maria (UFSM)
instacron:UFSM
instname_str Universidade Federal de Santa Maria (UFSM)
instacron_str UFSM
institution UFSM
reponame_str Ciência Rural
collection Ciência Rural
repository.name.fl_str_mv
repository.mail.fl_str_mv
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