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Prevalence of Pseudomonas aeruginosa in Clinical Samples and its sensitivity to Citrus Extract

Bioline for the Ibadan Biomedical Communications Group
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  • Biology


The prevalence of selected pathogens in four hundred and ninety eightsamples of ear, wound swabs and urine samples submitted to theMicrobiological Laboratory of Wesley Guild Hospital, Ilesa, Nigeria wasinvestigated. In ear infections, Pseudomonas aeruginosa predominated(50%), followed by Staphylococcus aureus (30%) and others (20%). Inwound swabs, S. aureus predominated (46.3%), P. aeruginosa(16%).Other bacteria isolated included Klebsiella spp, Proteus spp andEscherichia coli accounting for 18%. In urine, S. aureus and E. coli weremore frequently isolated with 49% and 23% respectfully. Theantibiogram studies showed that P. aeruginosa, was highly sensitive toCiprotab, Perflotab and Gentamycin except Pseudomonas isolates fromwounds which were resistant to Gentamycin. The isolates were resistantto Streptomycin, Ampicillin and Cotrimoxazole (septrin). Citrus juice –C. aurantifolia (Lime) and C. limon (Lemon) on P. aeruginosa gavepositive results with lethal effects on the test organisms with zones ofinhibition ranging from 7mm-22mm in diameter around the colonies.(Afr. J. Biomed. Res. 10: 183 – 187) Keywords: Pseudomonas aeruginosa, prevalence, citrus extract, antibiogram

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