Fig. 6From: Recombinant lipoprotein-based vaccine candidates against C. difficile infectionsMouse anti-RBD antibody responses elicited by different dosages of A-rRBD or rlipoA-RBD. BALB/c mice were immunized three times with either 3, 10 or 30 μg doses of A-rRBD; or with 3, 10 or 30 μg doses of rlipoA-RBD. Anti-RBD titers of mouse sera obtained at 0, 2, 4, 6, and 16 weeks were determined by RBD-specific ELISABack to article page