Resumo

CASTELLANO GONZALEZ, Maribel J. et al. Staphylococcus aureus: estado de portador en personal de enfermería y patrones de susceptibilidad antimicrobianaStaphylococcus aureus: carrier state in nursery personnel and antimicrobial susceptibility patterns. Rev. Soc. Ven. Microbiol. [online]. 2005, vol.25, n.2, pp.72-78. ISSN 1315-2556.

Abstract In order to determine carrier state and antimicrobial susceptibility patterns of S. aureus, nasal and hands swabs coming from 126 professional nurses, were processed. Isolation and bacterial identification were made by conventional methodology and antimicrobial susceptibility was determined by disk diffusion method. β-lactamases production, oxacillin screening test, minimal inhibitory concentration to oxacillin, vancomycin and penicillin G, and PBP2 production were also determined. 18.25% (23) of the individuals were S. aureus carriers. For penicillin G resistance was 86.79% and 18.87% to oxacillin. The presence of MRSA strains was observed in the adult intensive care units (26.09%). 84.91% of the strains were β-lactamase positive and 16.98% PBP2 producers. Nasal carriage represents an important hospital reservoir of S. aureus; none specific resistance profile was found among the isolated strains

Palavras-chave : Staphylococcus aureus; carriers; antimicrobial resistance.