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Highly pathogenic and multidrug resistant avian pathogenic escherichia coli in free-range chickens from Brazil

dc.contributor.authorOliveira, E. S. [UNESP]
dc.contributor.authorCardozo, M. V. [UNESP]
dc.contributor.authorBorzi, Mariana Monezi [UNESP]
dc.contributor.authorBorges, C. A. [UNESP]
dc.contributor.authorGuastalli, E. A.L.
dc.contributor.authorÁvila, F. A. [UNESP]
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionAdvanced Center for Technological Research of Poultry Agribusiness
dc.date.accessioned2019-10-06T15:45:53Z
dc.date.available2019-10-06T15:45:53Z
dc.date.issued2019-01-01
dc.description.abstractAvian pathogenic Escherichiacoli (APEC) virulence mechanism has been continuously studied and it is believed to be multifactorial and because of this, this work aimed to characterize potentially APEC strains isolated from free-range hens. Isolates were submitted to PCR for the detection of virulence genes, which were of high prevalence. In vivo inoculation of day-old chicks revealed that 49 of these strains were of high and intermediate pathogenicity. In addition, isolates were submitted to antimicrobials susceptibility test with the majority of the strains presenting multiresistance. Phylogenetic analysis showed a greater presence of potentially APEC isolates in-group B2. In addition, high heterogeneity was detected among the isolates byXbaI enzyme. Fifteen serogroups were identified, being the O8 the most frequent. These results strengthen the fact that a combination of diverse factors are associated with the pathogenicity APEC strains, as well as to highlight its importance to public health and that free-range hens can act as a reservoirs of potentially zoonoticbacteria.en
dc.description.affiliationUNESP-São Paulo State University School of Agricultural and Veterinarian Sciences
dc.description.affiliationBiological Institute Advanced Center for Technological Research of Poultry Agribusiness
dc.description.affiliationUnespUNESP-São Paulo State University School of Agricultural and Veterinarian Sciences
dc.description.sponsorshipFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.description.sponsorshipIdFAPESP: 2013/18279-1
dc.description.sponsorshipIdFAPESP: 2014/06313-3
dc.identifierhttp://dx.doi.org/10.1590/1806-9061-2018-0876
dc.identifier.citationRevista Brasileira de Ciencia Avicola, v. 21, n. 1, 2019.
dc.identifier.doi10.1590/1806-9061-2018-0876
dc.identifier.fileS1516-635X2019000100326.pdf
dc.identifier.issn1516-635X
dc.identifier.scieloS1516-635X2019000100326
dc.identifier.scopus2-s2.0-85067205735
dc.identifier.urihttp://hdl.handle.net/11449/187743
dc.language.isoeng
dc.relation.ispartofRevista Brasileira de Ciencia Avicola
dc.rights.accessRightsAcesso aberto
dc.sourceScopus
dc.subjectAPEC
dc.subjectBackyard chickens
dc.subjectColibacillosis
dc.subjectPathogenicity
dc.subjectVirulence factors
dc.titleHighly pathogenic and multidrug resistant avian pathogenic escherichia coli in free-range chickens from Brazilen
dc.typeArtigo
unesp.author.orcid0000-0002-4173-4946[1]
unesp.author.orcid0000-0003-3972-0198[2]
unesp.author.orcid0000-0001-5238-2731[3]
unesp.author.orcid0000-0001-5013-2069[4]
unesp.author.orcid0000-0002-2491-8348[5]
unesp.author.orcid0000-0002-9779-2213[6]

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