Fig. 2
Fit plot for colony forming units (CFU)/mL. At each time point, cultures were diluted either 10−3 or 10−5 and 10−6 in 0.01 M PBS, and 25 μL of bacteria suspension were spread on LB agar. Colony forming units (CFU) from each dilution were enumerated and adjusted to CFU/mL. CFU/mL along the y-axis was plotted as a function of OD600 on the x-axis in XY scatter plot to predict CFU relative to OD600. The regression equations, R-squared value, and P-value were determined for each serotype and strain