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Revista chilena de infectología

versão impressa ISSN 0716-1018

Resumo

OTTH R, Laura et al. Antimicrobial susceptibility and resistance patterns of Staphylococcus aureus isolated from patients and carriers in Valdivia city, Chile. Rev. chil. infectol. [online]. 2008, vol.25, n.3, pp.175-178. ISSN 0716-1018.  http://dx.doi.org/10.4067/S0716-10182008000300005.

In vitro susceptibility of nosocomial and community acquired strains of Staphylococcus aureus must be periodically evaluated because of its continuous evolution. Aim: To know the antimicrobial susceptibility of S. aureus isolated in Valdivia, to determine the prevalence of methicillin resistance and global patterns of resistance and to compare the evolution of the susceptibility along the years. Material and Methods: A total of 278 S. aureus strains were evaluated: 136 obtained from hospitalized patients, 50 belonged to outpatients and 92 to healthy carriers. Antimicrobial agents tested were: penicillin, oxacillin, vancomycin, gentamycin, ciprofloxacin, lincomycin and erythromycin. Results: Thirty three, 28 and 1.1% of strains isolated from hospitalized, outpatients and carriers, respectively, were methicillin-resistant. Six resistance patterns were found. No vancomycin resistant strain was isolated. Comment: It is worrisome that 2% of S. aureus strains obtained from hospitalized patients showed intermediate resistance to vancomycin

Palavras-chave : MRSA; S. aureus; antimicrobial susceptibility.

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