Figure 1: The average number of AIEC colonies that survived antibiotic treatments under combination therapy during the original and replicate tests are represented by the figure above. Plates that consisted of LB+AMP, LB+Kan and LB+Spe treatments only have one antibiotic treatment and served as positive controls to test whether combination therapy was more effective than therapy using only a single antibiotic. The LB+P/S and LB + Kan/Cam plates however had two antibiotics mixed in agar plates, which are the plates that happened to have no surviving colonies when combination therapy was initiated. The standard error of the mean (SEM) calculated is 5.043.