Fig. 8

Histopathological examination of organs from SD rats, which were immunized with nothing (group A), 100 ug of saline (group B), 100 ug of pVAX1 (group C), 100 ug of pVAX1-HA2-fimA (group D), 100 ug of pVAX1-HA2-fimA/IL-15 (group E), and 100 ug of pVAX1-HA2-fimA+CpG-ODN 1826 (30 μg) (group F), respectively. Scale bars represent 20 μm. Magnification, 200×