Figure 2
From: Type IV fimbrial subunit protein ApfA contributes to protection against porcine pleuropneumonia
Titration of porcine post-vaccination sera. Pigs were immunized with two doses of the indicated vaccines at two week intervals and the post-vaccination sera from all piglets were taken one day before challenge and examined for the anti-rApfA (A), anti-rApxIA (B), anti-rApxIIA (C), anti-rApxIIIA (D), anti-rApxIVA (E) and anti-rTbpB (F) antibody levels using ELISA. Each point represents an average value calculated from results obtained for titration of sera taken from all pigs included in the given vaccination group ± standard deviation.