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OXACILLIN RESISTANT STAPHYLOCOCCUS AUREUS AMONG HIV INFECTED AND NON-INFECTED KENYAN PATIENTS
Abstract
Background: Infections due to methicillin resistant S. aureus (MRSA) present global challenges to clinicians since therapeutic options are limited and suboptimal dosing contributes to heightened mortality and increased length of hospital stay particularly among the HIV infected patients.
Objectives: To assess the prevalence and relative risk of MRSA infections in HIV infected patients.
Design: Cross sectional analytical study.
Setting: Kenya Medical Research Institute, Opportunistic Infection Laboratories in Nairobi.
Subjects: Four hundred and thirty six male and female patients aged one to 65 years, of whom 220 were HIV-infected and 216 were non-infected.
Results: There was 436 male (57.1%) and female (42.9%) respondents. The prevalence of MRSA was 26.3% with majority infecting the HIV infected patients (P=0.046).
Likewise, the overall Staphylococcal infections were more common in HIV patients (P <0.001). The common test for MRSA oxacillin disk diffusion had a sensitivity and specificity of 100% and 92%.
Conclusion: HIV is a predisposing factor to Staphylococcal infection and there are indications that treatment with β-lactam antibiotics may no longer be relied on as sole empiric therapy for several ill HIV patients whose infections may be of MRSA in origin.
There is need for an informed choice in administration of appropriate antibiotics in order to minimise treatment failures due to the multidrug resistance and Vanvomycin intermediate S. aureus (VISA) strains. Molecular epidemiology of MRSA strains in understanding new and emerging trends is recommended.
Objectives: To assess the prevalence and relative risk of MRSA infections in HIV infected patients.
Design: Cross sectional analytical study.
Setting: Kenya Medical Research Institute, Opportunistic Infection Laboratories in Nairobi.
Subjects: Four hundred and thirty six male and female patients aged one to 65 years, of whom 220 were HIV-infected and 216 were non-infected.
Results: There was 436 male (57.1%) and female (42.9%) respondents. The prevalence of MRSA was 26.3% with majority infecting the HIV infected patients (P=0.046).
Likewise, the overall Staphylococcal infections were more common in HIV patients (P <0.001). The common test for MRSA oxacillin disk diffusion had a sensitivity and specificity of 100% and 92%.
Conclusion: HIV is a predisposing factor to Staphylococcal infection and there are indications that treatment with β-lactam antibiotics may no longer be relied on as sole empiric therapy for several ill HIV patients whose infections may be of MRSA in origin.
There is need for an informed choice in administration of appropriate antibiotics in order to minimise treatment failures due to the multidrug resistance and Vanvomycin intermediate S. aureus (VISA) strains. Molecular epidemiology of MRSA strains in understanding new and emerging trends is recommended.
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