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Fig. 3 | Virology Journal

Fig. 3

From: A candidate DNA vaccine encoding a fusion protein of porcine complement C3d-P28 and ORF2 of porcine circovirus type 2 induces cross-protective immunity against PCV2b and PCV2d in pigs

Fig. 3

Production of PCV2 antibodies in pigs after vaccination and infection with PCV2b or PCV2d viruses. Pigs in each of seven groups (n = 5 per group) were vaccinated on day 0, boosted on day 21, and infected with PCV2 on day 35. The mean sample-to-positive (S/P) ratio of each group at different days post vaccination were measured weekly by PCV2 ELISA as an indication of the host response. Different superscripts (a,b,c,d,e) indicate significant differences among groups. (p < 0.05)

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