Fig. 3

Evaluation of the efficacy of the oral mucosal TbpB-based vaccine in piglets immunized against Glässer’s disease throughout a seven-day experiment. A Survival rate, expressed as percentage, of immunized and non-immunized piglets challenged with four different serovars (SVs) of G. parasuis. B Clinical score average (0–3) and standard deviation of immunized and non-immunized piglets, itemized into six different clinical signs. No non-immunized piglet survived after the third day of challenge. Differences per group were evaluated with the Wilcoxon rank-sum test