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Antibiotic Sensitivity Patterns and Plasmid Profile of Bacteria Isolated from Some Swimming Pools

The aim of this study was to determine the antibiotic susceptibility profile of bacteria isolated from pools in Akure, Nigeria.


Between May and July 2018, I studied at the Department of Microbiology at the Federal University of Technology in Akure, Ondo State, Nigeria.


Methodology: Water samples were obtained from ten (10) swimming pools in Akure, Ondo State, Nigeria, during the morning and evening hours, including weekends. At the time of collection, the temperature and pH of the water samples were measured and reported. For each of the swimming pools, the types and loads of bacteria were calculated at various times during the day. Gram-staining methods and biochemical tests were used to characterise and identify the different bacterial isolates. Normal methods were used to assess the isolates' antibacterial susceptibility profiles. Plasmid analysis was performed on Escherichia coli and Staphylococcus aureus strains that were resistant to multiple antibiotics.


E. coli was found to be the most frequently (25 percent), followed by S. aureus (18.75 percent), Shigella flexneri (14.50 percent), Klebsiella pneumoniae (14.50 percent), Proteus mirabilis (9.37 percent), Citrobacter freundii (6.25 percent), Pseudomonas aeruginosa (6.25 percent), Enterobacter faecalis (3.13 percent), and (3.13 percent ). Ciprofloxacin, pefloxacin, and tarivid all showed significant inhibition zones against the isolates. The isolates were immune to chloramphenicol and septrin in particular. The existence of conjugative plasmids was also investigated in the isolates. Their resistance was chromosomally mediated, according to the findings.


Conclusion: Despite the fact that these pools meet the World Health Organization's minimum requirements, a microbiological analysis found that the majority of them are infected with potentially harmful pathogenic microorganisms.


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