Fig. 5.
Systemic IgG antibody response induced in mice by the LTBentero plant-made protein. a anti-LTB b anti-ST and c anti-LptD antibody titers in subcutaneously (s.c.) or orally (per os, p.o.) immunized mice. Antibody levels were determined by ELISA weekly over a period of 4 weeks post-first immunization.