Staphylococcus aureus and Salted Fish: Prevalence, Antibiogram, and Detection of Enterotoxin-coding Genes

This study was taken to investigate the prevalence of Staphylococcus aureus (S. aureus) in four types of salted fish, namely salted sardine, fesiekh, sahlia, and salted herrings that retailed in Zagazig city, Egypt. The antimicrobial susceptibility testing of the recovered S. aureus isolates was ex...

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Main Authors: Alaa Eldin M.A. Morshdy, Hassan Mohieldeen, Ahmed E. Tharwat, Maha Moustafa, Rehab E. Mohamed, Walaa Fathy SaadEldin, Wageh Sobhy Darwish
Format: Article
Language:English
Published: Assiut University 2022-11-01
Series:Journal of Advanced Veterinary Research
Online Access:https://advetresearch.com/index.php/AVR/article/view/1097
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author Alaa Eldin M.A. Morshdy
Hassan Mohieldeen
Ahmed E. Tharwat
Maha Moustafa
Rehab E. Mohamed
Walaa Fathy SaadEldin
Wageh Sobhy Darwish
author_facet Alaa Eldin M.A. Morshdy
Hassan Mohieldeen
Ahmed E. Tharwat
Maha Moustafa
Rehab E. Mohamed
Walaa Fathy SaadEldin
Wageh Sobhy Darwish
author_sort Alaa Eldin M.A. Morshdy
collection DOAJ
description This study was taken to investigate the prevalence of Staphylococcus aureus (S. aureus) in four types of salted fish, namely salted sardine, fesiekh, sahlia, and salted herrings that retailed in Zagazig city, Egypt. The antimicrobial susceptibility testing of the recovered S. aureus isolates was examined. Moreover, PCR was used for the detection of the coding genes of S. aureus-enterotoxins (SE) including SEA, SEB, SEC, and SED. The obtained results of the current investigation revealed isolation of S. aureus from the examined salted sardine, fesiekh, sahlia, and salted herrings at 15%, 40%, 30%, and 15%, respectively. Fesiekh had significantly (p< 0.05) the highest total S. aureus count (3.17 ± 0.13 log 10 cfu/g), followed by sahlia (3.08 ± 0.13 log 10 cfu/g), sardine (2.33 ± 0.07 log 10 cfu/mL), and salted herrings (2.30 ± 0.11 log 10 cfu/g), respectively. Besides, 10%, 35%, 20%, and 5% of the examined salted sardine, fesiekh, sahlia, and salted herrings, respectively exceeded Egyptian limits of S. aureus. The recovered S. aureus isolates showed clear multidrug resistance profiling. PCR testing of selected S. aureus isolates for harboring Staphylococcal enterotoxin-coding genes revealed SEA, and SEB were not detected in any examined isolate. However, SEC was detected in 3 S. aureus isolates recovered from fesiekh, and in 2 isolates that recovered from sahlia. SED was only detected in 2 isolates that recovered from fesiekh. Therefore, strict hygienic measures should be adopted during handling, and processing of salted fish.
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spelling doaj.art-74113a7125ec48838091482df53b14c62023-10-18T14:22:45ZengAssiut UniversityJournal of Advanced Veterinary Research2090-62692090-62772022-11-01126Staphylococcus aureus and Salted Fish: Prevalence, Antibiogram, and Detection of Enterotoxin-coding GenesAlaa Eldin M.A. Morshdy0Hassan Mohieldeen1Ahmed E. Tharwat2Maha Moustafa3Rehab E. Mohamed4Walaa Fathy SaadEldin5Wageh Sobhy Darwish6Food Control Department, Faculty of Veterinary Medicine, Zagazig University, Zagazig 44519, Egypt.Food Control Department, Animal Health Research Institute, Zagazig Province Laboratory, Zagazig, Egypt.Food Control Department, Faculty of Veterinary Medicine, Zagazig University, Zagazig 44519, Egypt.Food Control Department, Animal Health Research Institute, Zagazig Province Laboratory, Zagazig, Egypt.Department of Zoonoses, Faculty of Veterinary Medicine, Zagazig University 44519, Egypt.Educational Veterinary Hospital, Faculty of Veterinary Medicine, Zagazig University, Zagazig 44519, Egypt.Food Control Department, Faculty of Veterinary Medicine, Zagazig University, Zagazig 44519, Egypt. This study was taken to investigate the prevalence of Staphylococcus aureus (S. aureus) in four types of salted fish, namely salted sardine, fesiekh, sahlia, and salted herrings that retailed in Zagazig city, Egypt. The antimicrobial susceptibility testing of the recovered S. aureus isolates was examined. Moreover, PCR was used for the detection of the coding genes of S. aureus-enterotoxins (SE) including SEA, SEB, SEC, and SED. The obtained results of the current investigation revealed isolation of S. aureus from the examined salted sardine, fesiekh, sahlia, and salted herrings at 15%, 40%, 30%, and 15%, respectively. Fesiekh had significantly (p< 0.05) the highest total S. aureus count (3.17 ± 0.13 log 10 cfu/g), followed by sahlia (3.08 ± 0.13 log 10 cfu/g), sardine (2.33 ± 0.07 log 10 cfu/mL), and salted herrings (2.30 ± 0.11 log 10 cfu/g), respectively. Besides, 10%, 35%, 20%, and 5% of the examined salted sardine, fesiekh, sahlia, and salted herrings, respectively exceeded Egyptian limits of S. aureus. The recovered S. aureus isolates showed clear multidrug resistance profiling. PCR testing of selected S. aureus isolates for harboring Staphylococcal enterotoxin-coding genes revealed SEA, and SEB were not detected in any examined isolate. However, SEC was detected in 3 S. aureus isolates recovered from fesiekh, and in 2 isolates that recovered from sahlia. SED was only detected in 2 isolates that recovered from fesiekh. Therefore, strict hygienic measures should be adopted during handling, and processing of salted fish. https://advetresearch.com/index.php/AVR/article/view/1097
spellingShingle Alaa Eldin M.A. Morshdy
Hassan Mohieldeen
Ahmed E. Tharwat
Maha Moustafa
Rehab E. Mohamed
Walaa Fathy SaadEldin
Wageh Sobhy Darwish
Staphylococcus aureus and Salted Fish: Prevalence, Antibiogram, and Detection of Enterotoxin-coding Genes
Journal of Advanced Veterinary Research
title Staphylococcus aureus and Salted Fish: Prevalence, Antibiogram, and Detection of Enterotoxin-coding Genes
title_full Staphylococcus aureus and Salted Fish: Prevalence, Antibiogram, and Detection of Enterotoxin-coding Genes
title_fullStr Staphylococcus aureus and Salted Fish: Prevalence, Antibiogram, and Detection of Enterotoxin-coding Genes
title_full_unstemmed Staphylococcus aureus and Salted Fish: Prevalence, Antibiogram, and Detection of Enterotoxin-coding Genes
title_short Staphylococcus aureus and Salted Fish: Prevalence, Antibiogram, and Detection of Enterotoxin-coding Genes
title_sort staphylococcus aureus and salted fish prevalence antibiogram and detection of enterotoxin coding genes
url https://advetresearch.com/index.php/AVR/article/view/1097
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