The Steroid Catabolic Pathway of the Intracellular Pathogen Rhodococcus equi Is Important for Pathogenesis and a Target for Vaccine Development
Figure 7
Serum antibody titer against R. equi of foals (n = 4) immunized orally (grey bars) at T = 0 and T = 14 days with attenuated R. equi strain RE1ΔipdAB (5×107 CFU) and challenged at T = 28 days with R. equi strain 85F (5×106 CFU).
The serum antibody titer of unvaccinated control foals (n = 4) are shown in white bars. Bars represent mean titers at day of vaccination (T = 0), at day of booster vaccination (T = 14), at day of intratracheal challenge (T = 28) and 20 days post-challenge (T = 48). Error bars represent standard deviation.