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Table 1 Experimental design

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

Group Immunized recombinant plasmid Dose Challenge isolate Challenge dose (TCID50/ml)
pV/PCV2b pVAX1 400 μg/ml PCV2b 2 × 105.5
pV/PCV2d pVAX1 400 μg/ml PCV2d 2 × 105.5
pVO/PCV2b pVAX1-ORF2 400 μg/ml PCV2b 2 × 105.5
pVO/PCV2d pVAX1-ORF2 400 μg/ml PCV2d 2 × 105.5
pVOC3/PCV2b pVAX1-ORF2-C3d-P28.3 400 μg/ml PCV2b 2 × 105.5
pVOC3/PCV2d pVAX1-ORF2-C3d-P28.3 400 μg/ml PCV2d 2 × 105.5
Negative group PBS 1 ml / /