Figure 2From: Effect of porcine circovirus type 2 (PCV2) vaccination on PCV2-viremic piglets after experimental PCV2 challengeQuantification of PCV2a DNA in sera. Mean values of the genomic copy number of PCV2a DNA in serum from four different groups (commercial inactivated chimeric PCV1-2 vaccinated PCV2a-challenged PCV2b-viremic pigs (group 7), experimental inactivated PCV2 vaccinated PCV2a-challenged PCV2b-viremic pigs (group 8), unvaccinated PCV2a-challenged PCV2b-viremic pigs (group 11), and unvaccinated PCV2a-challenged non-PCV2-viremic pigs (group 13)) at different days post challenge. Different letters (a, b, and c) indicate statistically significant differences (P < 0.05) among groups.Back to article page