Figure 4From: Potent O-antigen-deficient (rough) mutants of Salmonella Typhimurium secreting Lawsonia intracellularis antigens enhance immunogenicity and provide single-immunization protection against proliferative enteropathy and salmonellosis in a murine modelHumoral and mucosal immune responses specific to the Salmonella OMP. Titers of serum IgG titers (a) and virginal sIgA (b) after immunization with JOL1809, JOL1810, JOL1811 and JOL1812 in the mice via an oral route. Data are the means for all mice in each group (n = 10). PBS, antibodies elicited in the non-immunized mice; OptA, antibodies specific to OptA elicited by the immunization in the mice; OptB, antibodies specific to OptB elicited by the immunization in the mice; LFliC, antibodies specific to FliC elicited by the immunization in the mice; LHly, antibodies specific to Hly elicited by the immunization in the mice. Error bars indicate standard deviation (sd). wpi: week post-immunization; P < 0.05 (vs. PBS).Back to article page