Biofilm-Forming Staphylococcus epidermidis Expressing Vancomycin Resistance Early after Adhesion to a Metal Surface

Figure 1

BCR and VCC after adhesion. After 5-minute adhesion to the washer surface, the bacteria were cultured and formed biofilm in TSB for 0, 2, 4, and 8 hours. BCRs on the washer surface were 4.1, 9.5, 37.0, and 79.2% in the immediate, 2 hr, 4 hr, and 8 hr groups, respectively, showing a significant increase with prolongation of the culture time in TSB (a). VCCs in biofilm were 7.2 × 10³, 1.3 × 10⁵, 7.0 × 10⁵, and 7.9 × 10⁵ CFU, respectively, showing no significant difference among the groups (b). Values represent mean and error bars indicate SD ( (a), (b)).

(a)

(b)