1921
Volume 99, Issue 5
  • ISSN: 0002-9637
  • E-ISSN: 1476-1645

Abstract

Abstract.

The escalating burden of infections attributable to methicillin-resistant (MRSA) in East African countries is calling for interventional strategies to control the spread of this strain. The present study aimed at determining the prevalence, antimicrobial profiles, and staphylococcal cassette chromosome (SCC) typing of MRSA strains. This was a cross-sectional laboratory-based study involving 226 non-duplicated isolates from different clinical samples of patients attending a referral hospital in Kigali. Kirby–Bauer disk diffusion method was used for drug susceptibility testing. Methicillin-resistant were confirmed using polymerase chain reaction (PCR) assay for the A gene and SCC type PCR assay was used for genotyping. Of 138 , 39 (31.2%) were found to be MRSA strains. The mean age of the patients was 21.9 years. The incidence of MRSA increases with age and was 27.1% in patient age group younger than 18 years, 33.3% in the age group between 19 and 65 years, and 66.7% in patient age group older than 65 years. There was a significant association between geographic regions and incidence of MRSA ( = 0.02) with the high MRSA isolates from Northern (61.5%) and Western (50%) provinces. Methicillin-resistant strains were found to be mostly susceptible to linezolid (93.5%). Among the MRSA strains, SCC type I and SCC type IV were the most prevalent at 56.4% and 17.9%, respectively. A high prevalence of MRSA was found in Rwanda. Staphylococcal cassette chromosome type I (52.2%) was the most predominant. A continuous surveillance of MRSA strains, particularly in the hospital settings, should be an enduring exercise in Rwanda.

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  • Received : 12 Jul 2017
  • Accepted : 30 Apr 2018
  • Published online : 10 Sep 2018

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