Choleraesuis rSC0016 in BALB/c mice at different time points. The numbers of Salmonella Choleraesuis C78-3, rSC0018(pYA3493), rSC0018(pS-SaoA), SC0016(pYA3493), rSC0016(pS-SaoA), rSC0011(pYA3493), and SC0011(pS-SaoA) in Peyer’s patches (A), spleen (B) and liver (C), of mice at 3, 7, 14, and 21 days after oral inoculation with 1.0 ± 0.3 × 109 CFU of the indicated strains were plotted. Bars represent the arithmetic mean ± standard deviations from ten mice per group. **P < 0.01, for rSC0018 compared to rSC0016 or to rSC0011 with either pYA3493 or pS-SaoA, respectively; #
P < 0.05, ##
P < 0.01, for rSC0011 compared to rSC0016 carrying either pYA3493 or pS-SaoA, respectively; $$
P < 0.01, for C78-3 compared to rSC0018, rSC0016 and rSC0011 carrying either pYA3493 or pS-SaoA, as indicated. The data were collected from two independent experiments.