Isolation of drug-resistant <i>Salmonella enterica</i> serovar enteritidis strains in gentoo penguins from Antarctica

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dc.contributor.authorRetamal, Patricio
dc.contributor.authorLlanos-Soto, Sebastian
dc.contributor.authorMoreno Salas, Lucila
dc.contributor.authorLopez, Juana
dc.contributor.authorVianna, Juliana
dc.contributor.authorHernandez, Jorge
dc.contributor.authorMedina-Vogel, Gonzalo
dc.contributor.authorCastaneda, Francisco
dc.contributor.authorFresno, Marcela
dc.contributor.authorGonzalez-Acuna, Daniel
dc.date.accessioned2025-01-23T21:24:11Z
dc.date.available2025-01-23T21:24:11Z
dc.date.issued2017
dc.description.abstractAnthropogenic activity in Antarctica constitutes a continuous risk for the introduction of infectious diseases into indigenous wildlife populations. Penguin colonies living close to human settlements or inhabiting in areas considered for tourism could be facing a greater threat of infection. Fecal samples from Pygoscelis penguins (Pygoscelis spp.) were collected from different sites within Antarctic Peninsula and South Shetlands Islands in order to assess the presence of Salmonella enterica. Bacterial identification and characterization was performed applying biochemical and molecular techniques. Isolates were tested for antimicrobial resistance by the disk diffusion method, and PCR analyses were used for detection of resistance and virulence-associated genes. Four samples (1.74%) from P. papua were found to be positive to S. enterica serovar Enteritidis strains. All of them showed phenotypic antimicrobial resistance to at least three antimicrobials, and shared a similar gene profile through PCR. Results in this study urgently call for improvements in sanitary standards for waste disposal and sewage treatment in Antarctica. To our knowledge, this is the first study to report antimicrobial resistance in S. enterica isolated from Antarctic wild species.
dc.description.funderInstituto Antartico Chileno (INACH)
dc.fuente.origenWOS
dc.identifier.doi10.1007/s00300-017-2163-7
dc.identifier.eissn1432-2056
dc.identifier.issn0722-4060
dc.identifier.urihttps://doi.org/10.1007/s00300-017-2163-7
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/101299
dc.identifier.wosidWOS:000418386500017
dc.issue.numero12
dc.language.isoen
dc.pagina.final2536
dc.pagina.inicio2531
dc.revistaPolar biology
dc.rightsacceso restringido
dc.subjectSalmonella enterica
dc.subjectAntimicrobial resistance
dc.subjectAntarctica
dc.subjectGentoo penguins
dc.subject.ods03 Good Health and Well-being
dc.subject.odspa03 Salud y bienestar
dc.titleIsolation of drug-resistant <i>Salmonella enterica</i> serovar enteritidis strains in gentoo penguins from Antarctica
dc.typeartículo
dc.volumen40
sipa.indexWOS
sipa.trazabilidadWOS;2025-01-12
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