Fig. 1

MICs of H2O2 (A), BAC (B), ClO2 (C), NaClO (D), and ethanol (E) for S. Typhimurium strains before and after evolution in the presence of the same disinfectant. Strains were exposed to increasing concentrations of disinfectant for approximately 300–500 generations. MIC was screened before the onset of evolution and after evolution. Significance of difference of evolved to wild type strain indicated by asterisks: *P ≤ 0.05 (one sample t test for μ = 1)