Antibody responses elicited by various immunogens in pigs. Six pigs were vaccinated
with the vesicular stomatitis virus glycoprotein-VP1, five pigs with glutathione
S-transferase-VP1, and four pigs with commercial inactivated foot-and-mouth disease
virus (FMDV) vaccine. Pigs were immunized twice intramuscularly, four weeks apart. The
antibody responses were measured by FMDV type O ELISA, and the results were presented as
average percentage inhibition (PI) (%). The statistical significance of differences
between the booster immunization and pre-immunization stage was determined at a 95%
confidence level, and the asterisks represent a statistically significant difference
(P<0.05).