African Health Sciences

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Prevalence and antibiogram study of Staphylococcus aureus isolated from clinical and selected drinking water of Dutsin-Ma, Katsina state, Nigeria

Adesoji A T, Onuh J P, Bagu J, Itohan S A


Background: Multidrug resistant Staphylococcus aureus in clinical and environmental samples is a global problem. Data comparing antibiogram of bacteria from these two sources in Nigeria is scarce. Therefore, this study compares antibiogram of isolates from both sources from Dutsin-Ma, Katsina State, Nigeria.

Methodology: A total of 120 and 150 clinical and aquatic samples respectively were collected for a five months period. Samples were analyzed for isolation of S. aureus using mannitol salt agar. Bacteria identification were carried out using standard biochem- ical characterization. Antibiogram of the isolates were determined using disc diffusion methods and comparison with Clinical Laboratory Standard Institute (CLSI)’s Standard. 

Result: A total of 120 and 45 S. aureus were isolated from both clinical and aquatic samples respectively. Highest (100.0%) resistance to cloxacillin was observed among isolates from each source. Clinical and aquatic isolates showed least resistance of 20.0% and 48.0% respectively to gentamicin. All isolated S. aureus (165) from this studies were multidrug resistant with different antibiotic resistant pattern.

Conclusion: This study revealed that multidrug resistance strains of S. aureus can be isolated from both clinical and drinking water sources, hence, a public health significance that calls for urgent attention by clinicians and public health workers.

Keywords: Clinical isolates, aquatic isolates, s. aureus, multi-drug resistant.
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