Resistance and virulence determinants of faecal Salmonella spp. isolated from slaughter animals in Benin

Abstract Objective Salmonella spp. are one of the leading foodborne pathogens worldwide naturally found in the intestines of many animals. People that are in direct contact with the infected animals or their cages may become ill. The aim of this study was to determine the prevalence, antibiogram and...

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Main Authors: Esther Deguenon, Victorien Dougnon, Evelyne Lozes, Nana Maman, Jerrold Agbankpe, Roula M. Abdel-Massih, Fidélia Djegui, Lamine Baba-Moussa, Jacques Dougnon
Format: Article
Language:English
Published: BMC 2019-06-01
Series:BMC Research Notes
Subjects:
Online Access:http://link.springer.com/article/10.1186/s13104-019-4341-x
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author Esther Deguenon
Victorien Dougnon
Evelyne Lozes
Nana Maman
Jerrold Agbankpe
Roula M. Abdel-Massih
Fidélia Djegui
Lamine Baba-Moussa
Jacques Dougnon
author_facet Esther Deguenon
Victorien Dougnon
Evelyne Lozes
Nana Maman
Jerrold Agbankpe
Roula M. Abdel-Massih
Fidélia Djegui
Lamine Baba-Moussa
Jacques Dougnon
author_sort Esther Deguenon
collection DOAJ
description Abstract Objective Salmonella spp. are one of the leading foodborne pathogens worldwide naturally found in the intestines of many animals. People that are in direct contact with the infected animals or their cages may become ill. The aim of this study was to determine the prevalence, antibiogram and virulence genes associated with Salmonella serovars from fecal samples of animals intended for consumption in Southern Benin. Results Out of a total of 406 samples, 2.46% were positive. The isolates identified were multidrug-resistant Salmonella spp. to penicillins, first generation cephalosporins and some aminoglycosides. All Salmonella isolates produced invA gene of 284 bp, fimA of 85 bp and stn of 260 bp. The spvC gene (571 bp) was present in 10% of the isolates whereas the spvR gene (310 bp) was found in 20% of the isolates. The control strain possessed all the tested genes. The invA gene implies that strains are able to invade epithelial cells. The fimA and stn genes present in all isolates show that they are capable of causing gastrointestinal illness in humans. The presence of spvC and spvR genes suggests the possibility of these strains to produce toxins.
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spelling doaj.art-ad98eaf0c83d4288ac44d5a6908bf67a2022-12-21T23:17:22ZengBMCBMC Research Notes1756-05002019-06-011211710.1186/s13104-019-4341-xResistance and virulence determinants of faecal Salmonella spp. isolated from slaughter animals in BeninEsther Deguenon0Victorien Dougnon1Evelyne Lozes2Nana Maman3Jerrold Agbankpe4Roula M. Abdel-Massih5Fidélia Djegui6Lamine Baba-Moussa7Jacques Dougnon8Research Unit in Applied Microbiology and Pharmacology of Natural Substances, Research Laboratory in Applied Biology, Polytechnic School of Abomey-Calavi, University of Abomey-CalaviResearch Unit in Applied Microbiology and Pharmacology of Natural Substances, Research Laboratory in Applied Biology, Polytechnic School of Abomey-Calavi, University of Abomey-CalaviResearch Unit in Applied Microbiology and Pharmacology of Natural Substances, Research Laboratory in Applied Biology, Polytechnic School of Abomey-Calavi, University of Abomey-CalaviResearch Unit in Applied Microbiology and Pharmacology of Natural Substances, Research Laboratory in Applied Biology, Polytechnic School of Abomey-Calavi, University of Abomey-CalaviResearch Unit in Applied Microbiology and Pharmacology of Natural Substances, Research Laboratory in Applied Biology, Polytechnic School of Abomey-Calavi, University of Abomey-CalaviDepartment of Biology, Faculty of Arts and Sciences, University of BalamandLaboratory of Veterinary Diagnosis and Serosurveillance of Parakou, Ministry of Agriculture, Livestock and FisheriesLaboratory of Biology and Molecular Typing in Microbiology, Faculty of Science and Technology, University of Abomey-Calavi, UACResearch Unit in Applied Microbiology and Pharmacology of Natural Substances, Research Laboratory in Applied Biology, Polytechnic School of Abomey-Calavi, University of Abomey-CalaviAbstract Objective Salmonella spp. are one of the leading foodborne pathogens worldwide naturally found in the intestines of many animals. People that are in direct contact with the infected animals or their cages may become ill. The aim of this study was to determine the prevalence, antibiogram and virulence genes associated with Salmonella serovars from fecal samples of animals intended for consumption in Southern Benin. Results Out of a total of 406 samples, 2.46% were positive. The isolates identified were multidrug-resistant Salmonella spp. to penicillins, first generation cephalosporins and some aminoglycosides. All Salmonella isolates produced invA gene of 284 bp, fimA of 85 bp and stn of 260 bp. The spvC gene (571 bp) was present in 10% of the isolates whereas the spvR gene (310 bp) was found in 20% of the isolates. The control strain possessed all the tested genes. The invA gene implies that strains are able to invade epithelial cells. The fimA and stn genes present in all isolates show that they are capable of causing gastrointestinal illness in humans. The presence of spvC and spvR genes suggests the possibility of these strains to produce toxins.http://link.springer.com/article/10.1186/s13104-019-4341-xSalmonellaVirulence genesMultidrug resistance
spellingShingle Esther Deguenon
Victorien Dougnon
Evelyne Lozes
Nana Maman
Jerrold Agbankpe
Roula M. Abdel-Massih
Fidélia Djegui
Lamine Baba-Moussa
Jacques Dougnon
Resistance and virulence determinants of faecal Salmonella spp. isolated from slaughter animals in Benin
BMC Research Notes
Salmonella
Virulence genes
Multidrug resistance
title Resistance and virulence determinants of faecal Salmonella spp. isolated from slaughter animals in Benin
title_full Resistance and virulence determinants of faecal Salmonella spp. isolated from slaughter animals in Benin
title_fullStr Resistance and virulence determinants of faecal Salmonella spp. isolated from slaughter animals in Benin
title_full_unstemmed Resistance and virulence determinants of faecal Salmonella spp. isolated from slaughter animals in Benin
title_short Resistance and virulence determinants of faecal Salmonella spp. isolated from slaughter animals in Benin
title_sort resistance and virulence determinants of faecal salmonella spp isolated from slaughter animals in benin
topic Salmonella
Virulence genes
Multidrug resistance
url http://link.springer.com/article/10.1186/s13104-019-4341-x
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