Figure 1.

Spn D39 reduces the population of Sau biofilms. Sau was inoculated alone (Sau) or with Spn strain D39 (Sau+Spn) in abiotic polystyrene plates (A,C) or human pharyngeal cells (B,D). Plates were incubated for 4 or 8 h at 37°C. Planktonic cells were removed, biofilms were harvested, diluted and then plated onto salt mannitol agar plates to obtain Sau biofilm counts (cfu/ml) or blood agar plates with gentamicin to obtain Spn biofilm counts (cfu/ml). Error bars represent the standard errors of the means, calculated using data from at least three independent experiments. ^*statistical significance (p < 0.05) in comparison to wells inoculated only with Sau.