{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,29]],"date-time":"2026-09-29T23:21:50Z","timestamp":1790724110368,"version":"4.1.0"},"reference-count":46,"publisher":"Wiley","license":[{"start":{"date-parts":[[2019,11,6]],"date-time":"2019-11-06T00:00:00Z","timestamp":1572998400000},"content-version":"unspecified","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["BioMed Research International"],"published-print":{"date-parts":[[2019,11,6]]},"abstract":"<jats:p><jats:italic>Background.<\/jats:italic> Extended spectrum beta-lactamases (ESBLs) producing Enterobacteriaceae cause severe infections in humans which leads to complicated diseases. There is increasing evidence that cattle contribute to the development and spread of multidrug resistant pathogens and this raises public health concern. Despite this, data on the concurrence of ESBL producing pathogens in cattle, especially in the North-West province are rare. Therefore, the aim of the present study was to isolate, identify and characterise ESBL producing <jats:italic>E. coli<\/jats:italic> and <jats:italic>K. pneumoniae<\/jats:italic> species from cattle faeces and raw beef samples. <jats:italic>Results<\/jats:italic>. A total of 151 samples comprising 55 faeces samples and 96 raw beef samples were collected and 259 nonreplicative potential isolates of Enterobacteriaceae were obtained. One hundred and ninety-six isolates were confirmed as <jats:italic>E. coli<\/jats:italic> (114; 44%) and <jats:italic>K. pneumoniae<\/jats:italic> (82; 32%) species through amplification of <jats:italic>uspA<\/jats:italic> and <jats:italic>uidA<\/jats:italic> and <jats:italic>ntrA<\/jats:italic> gene fragments, respectively. Antimicrobial susceptibility test revealed that large proportions (66.7\u2013100%) of the isolates were resistant to Amoxicillin, Aztreonam, Ceftazidime, Cefotaxime, and Piperacillin and were multidrug resistant isolates. Cluster analysis of antibiotic inhibition zone diameter data revealed close similarities between isolates from different sources or species thus suggested a link in antibiotic exposures. The isolates showing phenotypic resistance against ESBL antimicrobial susceptibility tests were screened for the presence of ESBL gene determinants. It was observed that 53.1% of the isolates harboured ESBL gene determinants. The <jats:italic>blaTEM<\/jats:italic>, <jats:italic>blaSHV<\/jats:italic> and <jats:italic>blaCTX-M <\/jats:italic>genes were detected in <jats:italic>E. coli <\/jats:italic>isolates (85.5%, 69.6%, and 58%, respectively) while <jats:italic>blaCTX-<\/jats:italic>M and <jats:italic>blaOXA<\/jats:italic> were detected in <jats:italic>K. pneumoniae <\/jats:italic>(40% and 42.9%, respectively). All the genetically confirmed ESBL producing <jats:italic>E. coli <\/jats:italic>and <jats:italic>K. pneumoniae <\/jats:italic>isolates were subjected to Enterobacterial Repetitive Intergenic Consensus (ERIC) PCR analysis. Fingerprinting data revealed great similarities between isolates from different areas and sources which indicates cross-contamination between cattle and beef. <jats:italic>Conclusion<\/jats:italic>. This study revealed that cattle and its associated food products, beef in particular, harbour ESBL producing pathogens. And this warrants a need to enforce hygiene measures and to develop other mitigation strategies to minimise the spread of antibiotic resistant pathogens from animals to human.<\/jats:p>","DOI":"10.1155\/2019\/4318306","type":"journal-article","created":{"date-parts":[[2019,11,6]],"date-time":"2019-11-06T18:30:46Z","timestamp":1573065046000},"page":"1-13","source":"Crossref","is-referenced-by-count":54,"title":["Antimicrobial Resistance Factors of Extended-Spectrum Beta-Lactamases Producing <i>Escherichia coli<\/i> and <i>Klebsiella pneumoniae<\/i> Isolated from Cattle Farms and Raw Beef in North-West Province, South Africa"],"prefix":"10.1155","volume":"2019","author":[{"given":"Kotsoana Peter","family":"Montso","sequence":"first","affiliation":[{"name":"Department of Microbiology, Faculty of Natural and Agricultural Sciences, North-West University, Private Bag X2046, Mmabatho 2735, South Africa"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Sicelo Beauty","family":"Dlamini","sequence":"additional","affiliation":[{"name":"Department of Microbiology, Faculty of Natural and Agricultural Sciences, North-West University, Private Bag X2046, Mmabatho 2735, South Africa"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ajay","family":"Kumar","sequence":"additional","affiliation":[{"name":"Department of Microbiology, School of Bioengineering and Biosciences, Lovely Professional University, Jalandhar-Delhi G.T. 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