ISSN: 2161-0681
Journal of Clinical & Experimental Pathology
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Prevalence and antibiogram profiles of Escherichia Coli O157:H7 isolates recovered from three selected dairy farms in the Eastern Cape Province, South Africa
Joint Event on 15th International Congress on American Pathology and Oncology Research & International Conference on Microbial Genetics and Molecular Microbiology
Luyanda Msolo, Etinosa Ogbomoede Igbinosa and Anthony Ifeanyin Okoh
University of Fort Hare, South Africa
Posters & Accepted Abstracts: J Clin Exp Pathol
DOI:
Abstract
Escherichia coli O157:H7 is one of the most imperious foodborne pathogens predisposed for a number of mortalities worldwide. To investigate the occurrence and antibiotics susceptibility of Escherichia coli (E. coli) from three selected commercial dairy farms in the Amathole District Municipality, Eastern Cape Province, South Africa, raw milk samples were collected from bulk storage tanks and swab samples from milking machines, cattle udder(s) and workers hands were also collected on a six-month sampling regime between June and November 2014. A standard culture-based method was used for the enumeration and isolation of E. coli O157:H7 using sorbitol MacConkey agar (supplemented with cefixime (50渭g/L) and potassium tellurite (25mg/L). A serological confirmation of the presumptive E. coli O157:H7 isolates was conducted using the O157 latex agglutination test kit. A total of 252 E. coli O157:H7 isolates were further subjected to PCR detection of rfbE O157 and fliCH7 genes of which 27 (11%) of the isolates were confirmed positive E. coli O157:H7. Our finding reveals that of the 27 E. coli O157:H7 isolates from the dairy farms, the rate of resistance against penicillin was 85% and resistance against the other antibiotics follow the order: tetracycline (81%), erythromycin (70%), streptomycin (52%) and chloramphenicol (45%). We conclude that the dairy farms are potential reservoirs of E. coli O157:H7 serotype with multiple antibiotic resistance and consequently a concern to public and environmental health.Biography
E-mail: mrmsolo@gmail.com
