SEROTYPING AND ANTIMICROBIAL RESISTANCE OF SALMONELLA (Spp). ISOLATED FROM FOOD MATRICES AND CLINICAL SPECIMENS FROM LEBANON

Authors

  • Andre EL KHOURY Saint Joseph University of Beirut
  • Joseph YAGHI Saint Joseph university of Beirut, Faculty of Sciences
  • Ali ATOUI Lebanese University, Faculty of Sciences
  • Grace NARGUIZIAN Saint Joseph university of Beirut, Faculty of Sciences
  • Marie Noel Mansour Saint Joseph university of Beirut, Faculty of Sciences
  • Malak GHORABI

DOI:

https://doi.org/10.15414/jmbfs.3565

Keywords:

Salmonellosis, Multidrug resistant bacteria, Foodborne diseases, Pathogenesis

Abstract

Salmonella (spp) is a genus of bacteria responsible for the most frequently reported cases of foodborne illnesses worldwide. In this study, serotyping was done by using highly specific manufactured antisera, to identify circulating Salmonella serovars isolated from food samples and clinical specimens. Antibiotic susceptibility testing was also performed to determine the level of resistance of these serotypes. This was done by using the disk diffusion method by testing 14 clinically important antibiotics on the Salmonella (spp) isolates. A total of 85 Salmonella (spp) strains, preidentified by biochemical testing, were collected over the course of 1 year. Serotyping of the isolates revealed the presence of 14 serotypes in the food samples with S. Infantis and S. Enteritidis, being the most common and 6 serotypes in the clinical samples with S. Enteritidis and S. Typhimurium being the most common. Antimicrobial susceptibility testing results showed resistance of isolates from both sample types to conventional antibiotics like Ampicillin and Piperacillin, and almost total resistance of the food isolates to a broad-spectrum antibiotic Imipenem, belonging to the Carbapenem class. Higher resistance was observed in food samples than in clinical ones. Moreover, 13 and 3 multidrug resistant serotypes of Salmonella (spp) were identified for the first time in Lebanon in the food and clinical samples respectively, with three of them were isolated from imported food samples.

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Published

2021-08-01

How to Cite

EL KHOURY, A., YAGHI, J., ATOUI, A., NARGUIZIAN, G. ., Mansour, M. N., & GHORABI, M. (2021). SEROTYPING AND ANTIMICROBIAL RESISTANCE OF SALMONELLA (Spp). ISOLATED FROM FOOD MATRICES AND CLINICAL SPECIMENS FROM LEBANON. Journal of Microbiology, Biotechnology and Food Sciences, 11(1), e3565. https://doi.org/10.15414/jmbfs.3565

Issue

Section

Miscellaneous
Received 2020-08-11
Accepted 2021-03-03
Online Published 2021-08-01