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

Table 3 The lymphoid lesion score and PCV2-antigen score of experimental pigs

	Negative group	pV/PCV2b	pVO/PCV2b	pVOC3/PCV2b	pV/PCV2d	pVO/PCV2d	pVOC3/PCV2d
Lymphoid lesion score	0.20 ± 0.45^a	1.80 ± 0.84^bc	1.20 ± 0.84 ^ac	0.80 ± 0.84 ^ac	2.20 ± 0.84 ^bc	1.00 ± 1.00 ^ac	0.60 ± 0.89 ^ac
PCV2-antigen score	0 ^a	18.80 ± 4.44 ^b	8.20 ± 5.22 ^a	5.40 ± 3.97 ^a	20.6 ± 5.03 ^b	7.60 ± 5.18^a,	3.40 ± 3.58 ^a,

Different superscripts (^a,b,c) indicate significant differences among groups. (p < 0.05)

ISSN: 1743-422X