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Memórias do Instituto Oswaldo Cruz
Fundação Oswaldo Cruz, Fiocruz
ISSN: 1678-8060
EISSN: 1678-8060
Vol. 108, No. 6, 2013, pp. 812-816
Bioline Code: oc13134
Full paper language: English
Document type: Short Communication
Document available free of charge

Memórias do Instituto Oswaldo Cruz, Vol. 108, No. 6, 2013, pp. 812-816

 en The antimicrobial susceptibility, biofilm formation and genotypic profiles of Staphylococcus haemolyticus check for this species in other resources from bloodstream infections
Vollú Silva, Patricia; Souza Cruz, Raquel; Sérgio Keim, Luiz; Renato de Paula, Geraldo; Ferreira Carvalho, Bernadete Teixeira; Rocchetto Coelho, Leonardo; da Silva Carvalho, Maria Cícera; Corrêa da Rosa, Joel Mauricio; Sá Figueiredo, Agnes Marie & Arneiro Teixeira, Lenise

Abstract

We analysed the antimicrobial susceptibility, biofilm formation and genotypic profiles of 27 isolates of Staphylococcus haemolyticus check for this species in other resources obtained from the blood of 19 patients admitted to a hospital in Rio de Janeiro, Brazil. Our analysis revealed a clinical significance of 36.8% and a multi-resistance rate of 92.6% among these isolates. All but one isolate carried the mecA gene. The staphylococcal cassette chromosome mec type I was the most prevalent mec element detected (67%). Nevertheless, the isolates showed clonal diversity based on pulsed-field gel electrophoresis analysis. The ability to form biofilms was detected in 66% of the isolates studied. Surprisingly, no icaAD genes were found among the biofilm-producing isolates.

Keywords
Staphylococcus haemolyticus; SCCmec; biofilm

 
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