Number of infected cells (spots) for the different treatment groups.

Treatment groups: IBH (inoculated with neat SSBP/1), Incubated IBH (inoculated with SSBP/1 that was incubated at the digestion temperature), EF (inoculated with keratinase-digested SSBP/1), BS (inoculated with biosurfactant-digested SSBP/1) and EF+BS (inoculated with enzymatic formulation-digested SSBP/1). The number of infected cells were significantly reduced for EF (p = 0.009), BS (p = 0.033) and EF+BS (p = 0.009) treatment groups compared to Incubated IBH. Test of significance was calculated using Two-Sample T-Test. Each bar represents mean ± SD (n = 4, each data point).