FIG 5.

Infection assay of the phages against P. aeruginosa in vitro. (a to c) Bactericidal effects of HX1, MYY9, and MYY16 independently against their host strain PAO1 at different multiplicities of infection (MOIs). (d) Comparison of antibacterial activities of phages HX1, MYY9, and MYY16 against host strain PAO1 at an MOI of 1. (e to h) Inhibition of bacterial growth by HX1 and MYY9 against clinical isolates with the multidrug resistance P. aeruginosa strain W₁₉ (e and f) and high-mucus-yield strain FRD1 (g and h). The experiment with the growth control (GC) group was conducted by adding equal volumes of SM buffer. The optical density (OD₆₀₀) was recorded every 10 min. Data are calculated as the means (±SD). The experiment was repeated three times.