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. 2006 Sep;50(9):3003–3010. doi: 10.1128/AAC.00137-06

FIG. 1.

FIG. 1.

Recovery of E. coli 345-2RifC (diamonds), prepassage E. coli 345-2RifC/pVE46 (squares), postpassage E. coli 345-2RifC/pVE46 (triangles), and E. coli 345-2RifC/RP1 (circles) from pig feces. Variations of up to a factor of 1,000 were seen between individual animals infected with the same strain. Hence, standard deviations are large, and so, for clarity, error bars have not been included; however, they overlapped at all time points. Analysis of variance indicates no statistically significant difference in the recovery rates of the strains (for comparison of pre- and postpassage E. coli 345-2RifC/pVE46 with E. coli 345-2RifC, F = 1.87, P = 0.157; for comparison of E. coli 345-2RifC/RP1 with E. coli 345-2RifC, F = 3.031, P = 0.085).