Figure 2.
Rabbit antibody responses to oral immunisation with L. lactis expressing GAS pili. Serum (a) or BAL (b) antibody titres from rabbits immunised with L. lactis PilM18 or L. lactis PilM28 were determined by ELISA against purified recombinant proteins. Black bars indicate antibody titres against proteins present in the vaccine. Grey bars indicate antibody titres against cross-reactive antigens. Two technical replicates were performed.