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. 2012 Mar 9;7(3):e32400. doi: 10.1371/journal.pone.0032400

Figure 1. Antibody titre after vaccination and challenge.

Figure 1

Pigs were vaccinated with the adjuvanted split (solide line), non-adjuvanted whole (dashed line) or mock (dotted line) vaccine. The non-adjuvanted whole vaccine was administered twice (at day 0 and day 21pv). At day 93pv, all pigs were challenged with Eng195. Serum samples were taken at various time-points post-vaccination and challenge, and IgG1 (A) and IgG2 (B) Ab titres were quantified by ELISA. Results are expressed as the mean Log EU value ± SEM. *, P<0.05.