Effect of sub-inhibitory concentrations of antibiotics on biofilm formation and expression of virulence genes in penicillin-resistant, ampicillin-susceptible Enterococcus faecalis

Abstract excerpt

Biofilm formation is a key factor in the pathogenesis of enterococcal infections. Thus, the biofilm-forming ability and frequency of biofilm-related genes in penicillin-resistant, ampicillin-susceptible Enterococcus faecalis (PRASEF) compared to penicillin- and ampicillin-susceptible E. faecalis (PSASEF) were assessed in the present study. In addition, the effect of sub-inhibitory concentrations (sub-MICs) of...

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