Antibiotic Susceptibility of Shiga Toxin Producing E. coli O157:H7 Isolated from Different Water Sources
Einas H. El-Shatoury; M. Azab El-Leithy; ABOUZEID, MOHAMED; Gamila E. El-Taweel; Waled Morsy El-Senousy;
Abstract
Nowadays the extensive use of antibiotics for the treatment of humans and warm blooded animals has influenced the frequency and spread of antibiotic resistant E. coli O157:H7 in different aqueous sources. Thus, the main aim of this study was to evaluate the antibiotic susceptibilities of E. coli O157:H7 isolated from different water sources and establish a correlation between the presence of virulence genes of E. coli O157:H7 with the resistance to six antibiotic groups (amoxicillin, cefixime, ciprofloxacin, tetracycline, clarithromycin and streptomycin) extensively used in Egypt. To achieve this aim 44 suspect E. coli O157:H7 isolates were confirmed by biochemical tests and were characterized for six virulence genes: fliC, stx1, stx2, eae, rfbE and hlyA using multiplex PCR. All E. coli O157:H7 isolates carrying three (stx2, eae and rfbE) or more virulence genes were resistant to amoxicillin and 77% were resistant to clarithomycin. In conclusion, it appears that the environmental E. coli O157:H7 strains develop strategies for antibiotic resistance more than reference strains.
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Title | Antibiotic Susceptibility of Shiga Toxin Producing E. coli O157:H7 Isolated from Different Water Sources | Authors | Einas H. El-Shatoury; M. Azab El-Leithy; ABOUZEID, MOHAMED ; Gamila E. El-Taweel; Waled Morsy El-Senousy | Keywords | Antibiotic resistance;E. coli O157:H7;shiga toxins;water | Issue Date | 2015 | Publisher | Bentham | Journal | The Open Conference Proceedings Journal | Volume | 6 | Start page | 30 | End page | 34 | DOI | DOI:10.2174/2210289201506010030 |
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