Figure 5From: M cell targeting by a Claudin 4 targeting peptide can enhance mucosal IgA responsesPersistence of response to recombinant protein vaccine, three dose protocol. Using an initial three week course of immunization followed by an eleven week rest period, persistent antibody responses were evident, along with enhanced IgA responses to the CPE targeted vaccine. A, Immunization protocol. B, Response 3 weeks after first dose. C, Response 14 weeks after first dose.Back to article page