FIGURE 4.

One step growth curve of bacteriophage Sfin-1. Shigella flexneri 2a, Shigella dysenteriae 1, Shigella sonnei were infected with Sfin-1 at 37°C at an MOI of 0.01. After phage absorption, the cultures were diluted 10⁴-fold, incubated at 37°C and the titers in PFU per mL of Sfin-1 from the infected cultures at different time points were determined. Result was plotted as mean ± SD (n = 3). (A–C) Present one step growth curves of Sfin-1 in Shigella flexneri 2a, Shigella dysenteriae 1, and Shigella sonnei, respectively.