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

BMC Research Notes

Roula M. Abdel-Massih¹  Lamine Baba-Moussa²  Fidélia Djegui³  Jerrold Agbankpe⁴  Esther Deguenon⁴  Nana Maman⁴  Victorien Dougnon⁴  Evelyne Lozes⁴  Jacques Dougnon⁴ 

[1] Department of Biology, Faculty of Arts and Sciences, University of Balamand;Laboratory of Biology and Molecular Typing in Microbiology, Faculty of Science and Technology, University of Abomey-Calavi, UAC;Laboratory of Veterinary Diagnosis and Serosurveillance of Parakou, Ministry of Agriculture, Livestock and Fisheries;Research Unit in Applied Microbiology and Pharmacology of Natural Substances, Research Laboratory in Applied Biology, Polytechnic School of Abomey-Calavi, University of Abomey-Calavi;

关键词: Salmonella;    Virulence genes;    Multidrug resistance;   

DOI  :  10.1186/s13104-019-4341-x

来源: DOAJ

【 摘 要 】

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.

【 授权许可】

Unknown