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Aim: To study the emergence of the community-acquire CTX-M beta-lactamase genes among the residents in Abeokuta, Nigeria. Study Design: To determine the prevalence rate of CTX-M beta-lactamase genes in enteric multiresistant ESBL isolates found among the Abeokuta residents. Place of Study: Abeokuta, Nigeria between August 2010 and March 2013. Methodology: Beta-lactamase and ESBL producing enteric bacteria were identified and their antimicrobial susceptibility was tested against commonly used antibiotics. Mating activity of the Original Research Article Akinduti et al.; BMRJ, 5(4): 351-358, 2015; Article no.BMRJ.2015.036 352 isolates was evaluated and their plasmid was profiled while a CTX-M chromosomal gene was assayed by PCR. Results: Of the 27.4% beta-lactamase producers obtained, only 5.1% of the strains were ESBL and 2.8% harboured blaCTX-M genes. High resistance rate of 91.0% by Escherichia coli and Klebsiella oxytoca to commonly used antibiotics was observed. Conclusion: There is urgent need to curb the community spread of undetected mobile genetic elements of CTX-M-encoded enteric bacteria among the residents in this community and if this persists, a possible outbreak of enteric infection caused by resistant organisms is eminent. |
