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Original Article
Online Published: 25 Jan 2016
 


Isolation and Molecular Characterization of Shiga Toxin-Producing Escherichia Coli in Beef Retail Markets

Adel M. El-gamal, Abdou M.s., Nehad I.e. Salem, Nahla A.a. Ebied.


Abstract
Shiga toxin-producing Escherichia coli (STEC) are foodborn pathogens cause mild to serious diseases, leading to people death. This study reports the prevalence and characterization of STEC O157 and non-O157 in beef retail markets (commercial ground beef and instruments samples: meat tables, knives, meat mincing machines) obtained from 25 retail markets in Kafer El-sheikh governorate. The STEC isolates were serotyped and virulence genes as stx1 (Shiga toxin 1), stx2 (Shiga toxin 2) and eae (intimin) were determined. STEC O157 were identified in 11 (14.6 %) of raw beef samples and 8 (10.6%) in instruments samples, while STEC non-O157 (O128, O78, O111, O26 and O119) were present in 6(8%) in raw beef samples and 9 (12%) in instruments samples. Among strains isolated , the prevalent genotype for O157 were stx1,stx2and eae while for STEC non-O157 were stx1 , stx2 and eae in O111, stx1 and stx2 in O26 , stx1 in O128 and O119 , stx2 in O78 . In conclusion, cross-contamination between meat and the environment could be suspected.

Key words: shiga toxin, STEC, raw ground beef, retail markets, instruments samples, molecular.


 
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How to Cite this Article
Pubmed Style

El-gamal AM, M.s. A, Salem NI, Ebied NA. Isolation and Molecular Characterization of Shiga Toxin-Producing Escherichia Coli in Beef Retail Markets. AJVS. 2016; 48(1): 50-56. doi:10.5455/ajvs.205072

Web Style

El-gamal AM, M.s. A, Salem NI, Ebied NA. Isolation and Molecular Characterization of Shiga Toxin-Producing Escherichia Coli in Beef Retail Markets. https://www.alexjvs.com/?mno=205072 [Access: May 04, 2025]. doi:10.5455/ajvs.205072

AMA (American Medical Association) Style

El-gamal AM, M.s. A, Salem NI, Ebied NA. Isolation and Molecular Characterization of Shiga Toxin-Producing Escherichia Coli in Beef Retail Markets. AJVS. 2016; 48(1): 50-56. doi:10.5455/ajvs.205072


Vancouver/ICMJE Style

El-gamal AM, M.s. A, Salem NI, Ebied NA. Isolation and Molecular Characterization of Shiga Toxin-Producing Escherichia Coli in Beef Retail Markets. AJVS. (2016), [cited May 04, 2025]; 48(1): 50-56. doi:10.5455/ajvs.205072


Harvard Style

El-gamal, A. M., M.s., . A., Salem, . N. I. & Ebied, . N. A. (2016) Isolation and Molecular Characterization of Shiga Toxin-Producing Escherichia Coli in Beef Retail Markets. AJVS, 48 (1), 50-56. doi:10.5455/ajvs.205072


Turabian Style

El-gamal, Adel M., Abdou M.s., Nehad I.e. Salem, and Nahla A.a. Ebied. 2016. Isolation and Molecular Characterization of Shiga Toxin-Producing Escherichia Coli in Beef Retail Markets. Alexandria Journal of Veterinary Sciences, 48 (1), 50-56. doi:10.5455/ajvs.205072


Chicago Style

El-gamal, Adel M., Abdou M.s., Nehad I.e. Salem, and Nahla A.a. Ebied. "Isolation and Molecular Characterization of Shiga Toxin-Producing Escherichia Coli in Beef Retail Markets." Alexandria Journal of Veterinary Sciences 48 (2016), 50-56. doi:10.5455/ajvs.205072


MLA (The Modern Language Association) Style

El-gamal, Adel M., Abdou M.s., Nehad I.e. Salem, and Nahla A.a. Ebied. "Isolation and Molecular Characterization of Shiga Toxin-Producing Escherichia Coli in Beef Retail Markets." Alexandria Journal of Veterinary Sciences 48.1 (2016), 50-56. Print. doi:10.5455/ajvs.205072


APA (American Psychological Association) Style

El-gamal, A. M., M.s., . A., Salem, . N. I. & Ebied, . N. A. (2016) Isolation and Molecular Characterization of Shiga Toxin-Producing Escherichia Coli in Beef Retail Markets. Alexandria Journal of Veterinary Sciences, 48 (1), 50-56. doi:10.5455/ajvs.205072




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    The Alexandria Journal of Veterinary Sciences (AJVS) Official Journal of Faculty of Veterinary Medicine, Alexandria University   ISSN: 1110 ... Read more.



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