Fig 1.
Posttreatment blaCMY-2 (A), posttreatment-with-ceftriaxone-pressure blaCMY-2 (B), and floR (C) gene expression (fold change) among S. enterica serovar Newport 044, 016, and 023 and S. enterica serovar Typhimurium 043, 047, 030, and 032 by qRT-PCR, relative to the expression of their respective pretreatment isolates. Expression of blaCMY-2 and floR was normalized to recA for each sample. Gene expression data were statistically analyzed using independent Student t tests. Bars show the means of three replicates. Dashed lines show a fold change of 1, error bars indicate the standard deviation, and asterisks show significant differences (P < 0.05).