Figure 10.

(a) The activity of phage 590B against intact 24 h old preformed biofilm formed on Foley silicon catheter and (b) disrupted 24 h old preformed biofilm when treated for 24 h (in terms of viable biofilm counts). (c) Scanning electron micrograph images (magnification 2500×) of intact 24-old biofilm formed on polystyrene coverslips (control group) and (d) treated with phage (10⁷ PFU/mL) for 24 h. Error bars indicate Mean± SD; p-values show the significance between control and treated groups. The significant difference indicated by *** p < 0.001 and ** p < 0.01.