Figure 7. Enumeration of biofilm-associated phages recovered from drinking water biofilms colonized by K. pneumoniae CAV1016, after 2 h treatments at either 37 °C or 25 °C. Dark blue bars represent biofilm-associated phage titers after treatments at 37 °C. Light blue bars represent biofilm-associated phage titers after treatments at 25 °C. Treatment 1 was applied at 7 d, treatment 2 at 14 d, and treatment 3 at 21 d, post-colonization by CAV1016. All cocktails were applied at a titer of 109 PFU/mL and supplemented with P103. Values are log-normalized means ± SEM (n = 12). Asterisks represents a significant difference (p < 0.05) between the number of recovered phages at 37 °C and 25 °C after a given treatment, as determined by Student's t-test.
