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dc.contributor.author
Urzúa Encina, Constanza
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Fernández Sanhueza, Bastián
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Pavez Muñoz, Erika
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Ramírez Toloza, Galia
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Tomazic, Mariela Luján
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Rodríguez, Anabel Elisa
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Alegría Morán, Raúl
dc.date.available
2024-03-04T10:45:00Z
dc.date.issued
2023-08
dc.identifier.citation
Urzúa Encina, Constanza; Fernández Sanhueza, Bastián; Pavez Muñoz, Erika; Ramírez Toloza, Galia; Tomazic, Mariela Luján; et al.; Epidemiological Characterization of Isolates of Salmonella enterica and Shiga Toxin-Producing Escherichia coli from Backyard Production System Animals in the Valparaíso and Metropolitana Regions; Multidisciplinary Digital Publishing Institute; Animals; 13; 15; 8-2023; 1-15
dc.identifier.issn
2076-2615
dc.identifier.uri
http://hdl.handle.net/11336/229167
dc.description.abstract
Backyard production systems (BPS) are distributed worldwide, rearing animals recognized as reservoirs of Salmonella enterica and Shiga toxin-producing Escherichia coli (STEC), both zoonotic pathogens. The aim of this study was to characterize isolates of both pathogens obtained from animals raised in BPS from two central Chile regions. The presence of pathogens was determined by bacterial culture and confirmatory PCR for each sampled BPS, calculating positivity rates. Multivariate logistic regression was used to determine risk factors. Additionally, phenotypic antimicrobial resistance was determined. A positivity rate of 2.88% for S. enterica and 14.39% for STEC was determined for the complete study region (Valparaíso and Metropolitana regions). Risk factor analysis suggests that the presence of ruminants (OR = 1.03; 95% CI = 1.002–1.075) increases the risk of STEC-positive BPS, and the presence of ruminants (OR = 1.05; 95% CI = 1.002–1.075) and the animal handlers being exclusively women (OR = 3.54; 95% CI = 1.029–12.193) increase the risk for S. enterica/STEC positivity. Eighty percent of S. enterica isolates were multidrug resistant, and all STEC were resistant to Cephalexin. This study evidences the circulation of multidrug-resistant zoonotic bacterial strains in animals kept in BPS and the presence of factors that modify the risk of BPS positivity for both pathogens.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Multidisciplinary Digital Publishing Institute
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dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
ANTIMICROBIAL RESISTANCE
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BACKYARD PRODUCTION SYSTEM
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ONE HEALTH
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POSITIVITY RATE
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RISK FACTORS
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SALMONELLA ENTERICA
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STEC
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Biología Celular, Microbiología
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Ciencias Biológicas
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CIENCIAS NATURALES Y EXACTAS
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dc.title
Epidemiological Characterization of Isolates of Salmonella enterica and Shiga Toxin-Producing Escherichia coli from Backyard Production System Animals in the Valparaíso and Metropolitana Regions
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2024-02-29T12:09:55Z
dc.journal.volume
13
dc.journal.number
15
dc.journal.pagination
1-15
dc.journal.pais
Suiza
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dc.description.fil
Fil: Urzúa Encina, Constanza. Universidad de Chile; Chile
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Fil: Fernández Sanhueza, Bastián. Universidad de Chile; Chile. Universidad Santo Tomás;
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Fil: Pavez Muñoz, Erika. Universidad de Chile; Chile
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Fil: Ramírez Toloza, Galia. Universidad de Chile; Chile
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Fil: Tomazic, Mariela Luján. Instituto Nacional de Tecnología Agropecuaria. Centro de Investigación En Ciencias Veterinarias y Agronómicas. Instituto de Patobiología Veterinaria.
Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Instituto de Patobiología Veterinaria; Argentina
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Fil: Rodríguez, Anabel Elisa. Universidad de Buenos Aires; Argentina
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Fil: Alegría Morán, Raúl. Universidad Santo Tomás;
dc.journal.title
Animals
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dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://www.mdpi.com/2076-2615/13/15/2444/review_report
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.3390/ani13152444
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