Fig. 1From: Prevalence of virulence genes of biofilm producing strains of Staphylococcus epidermidis isolated from clinical samples in Iran Right black colonies in a strong biofilm-producing Staphylococcus epidermidis isolate in the Congo red agar (CRA) medium. Left red colonies of Staphylococcus epidermidis isolate with no biofilm.Back to article page