Prevalence and antimicrobial resistance of Salmonella isolated from two pork processing plants in Alberta, Canada

Sánchez‐Maldonado, Alma Fernanda; Aslam, Mueen; Narváez‐Bravo, Claudia; Avery, Brent P.; Johnson, Roger P.; Jones, T. H.

doi:10.1016/j.ijfoodmicro.2016.10.004

Cited by 29 publications

(12 citation statements)

References 38 publications

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“…One of the most common serotypes causing human salmonellosis in many countries is S . Typhimurium ( Campos et al, 2012 ; Sanchez-Maldonado et al, 2017 ), which was the main serotype identified in this study. In other reports, this serotype was also found to be predominant in pig and pork products ( Botteldoorn et al, 2003 ; Kich et al, 2011 ; Bonardi et al, 2013 ), while other serotypes such as S .…”

Section: Discussionmentioning

confidence: 81%

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Detection and Characterization of Salmonella Serotypes in the Production Chain of Two Pig Farms in Buenos Aires Province, Argentina

et al. 2018

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The aim of the present study was to determine the prevalence of Salmonella in the pork production chain and to characterize Salmonella isolates. From 764 samples, 35 (4.6%) were positive for Salmonella spp., as determined by biochemical tests and the presence of the invA gene. From these, 2.6, 2.0, 8.8, and 8.0% corresponded to samples collected from farms, slaughterhouses, boning rooms and retail markets, respectively. Salmonella strains were classified into five serotypes and distributed as follows: S. Typhimurium in the pork production chain, S. Kentucky in farms and slaughterhouses, S. Brandenburg in slaughterhouses, S. Livingstone in farms and S. Agona in boning rooms and retail markets. Interestingly, the antimicrobial susceptibility testing indicated that all 35 Salmonella spp.-positive isolates were resistant to at least one antimicrobial agent, and 30 were multidrug-resistant (MDR) and resistant to different classes of antibiotics. The enterobacterial repetitive intergenic consensus-polymerase chain reaction (ERIC-PCR) analysis showed clonal relatedness among strains isolated from farms, boning rooms and retail markets. The presence of antibiotic-resistant Salmonella in food poses a potential health hazard to consumers.

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Section: Discussionmentioning

confidence: 81%

“…Salmonella spp. are important zoonotic pathogens involved in human foodborne illness ( Castagna et al, 2005 ; Sanchez-Maldonado et al, 2017 ). Most cases of salmonellosis are associated with ingestion of contaminated food such as poultry, milk, beef, pork, eggs, fruits and vegetables ( Favier et al, 2013 ).…”

Section: Introductionmentioning

confidence: 99%

Detection and Characterization of Salmonella Serotypes in the Production Chain of Two Pig Farms in Buenos Aires Province, Argentina

et al. 2018

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“…In Canada, Salmonella was the second most common cause of bacterial foodborne illness outbreaks. Salmonella was recovered from 94% of carcass swabs after bleeding and 10% of carcass swabs after de-hairing from two pork processing plants in Alberta, Canada (11). In Africa, Salmonella was detected in 13.1% (95% CI 9.3-18.3) of 5,467 pig samples (12).…”

Section: Introductionmentioning

confidence: 99%

Characterization of Salmonella Resistome and Plasmidome in Pork Production System in Jiangsu, China

et al. 2020

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The prevalence of antimicrobial resistance in zoonotic Salmonella is a significant ongoing concern over the world. Several reports have investigated the prevalence of Salmonella infections in the farm animals in China; however, there is only limited knowledge about the Salmonella cross-contamination in the slaughterhouses. Moreover, the application of genomic approaches for understanding the cross-contamination in the food-animal slaughterhouses is still in its infancy in China. In the present study, we have isolated 105 Salmonella strains from pig carcasses and environment samples collected from four independent slaughterhouses in Jiangsu, China. All the Salmonella isolates were subjected to whole genome sequencing, bioinformatics analysis for serovar predictions, multi-locus sequence types, antimicrobial resistance genes, and plasmid types by using the in-house Galaxy platform. The antimicrobial resistance of Salmonella isolates was determined using a minimal inhibitory concentration assay with 14 antimicrobials. We found that the predominant serovar and serogroup was S. Derby and O:4(B), with a prevalence of 41.9 and 55%, respectively. All the isolates were multidrug-resistant and the highest resistance was observed against antimicrobials tetracycline (95.4%) and trimethoprim and sulfamethoxazole (90.9%). Additionally, the colistin-resistant determinant mcr-1 gene was detected in five (4.8%) strains. Our study demonstrated the prevalence of antimicrobial resistance in Salmonella strains isolated from pig slaughterhouses in China and suggested that the genomic platform can serve as routine surveillance along with the food-chain investigation.

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“…Microbial infections produce approximately 15 million deaths per year worldwide, with 70 % of deaths caused by bacterial infections (Essama et al, 2016). Unfortunately, some bacteria have developed resistance to antibiotics (extrinsic resistance) (Sanchez-Maldonado et al, 2017).…”

Section: Introductionmentioning

confidence: 99%

“…Desafortunadamente, algunas bacterias han desarrollado resistencia a antibióticos (resistencia extrínseca) (Sanchez-Maldonado et al, 2017). Por lo tanto, el estudio de los nuevos agentes antimicrobianos puede ser dirigidos a las amenazas mundiales para la salud pública debido a la alta resistencia de los patógenos a los antimicrobianos y a la falta de desarrollo de nuevos antimicrobianos (Reis et al, 2015).…”

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Prevalence and antimicrobial resistance of Salmonella isolated from two pork processing plants in Alberta, Canada

Cited by 29 publications

References 38 publications

Detection and Characterization of Salmonella Serotypes in the Production Chain of Two Pig Farms in Buenos Aires Province, Argentina

Detection and Characterization of Salmonella Serotypes in the Production Chain of Two Pig Farms in Buenos Aires Province, Argentina

Characterization of Salmonella Resistome and Plasmidome in Pork Production System in Jiangsu, China

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