Figure 1From: Pigs naturally exposed to porcine circovirus type 2 (PCV2) generate antibody responses capable to neutralise PCV2 isolates of different genotypes and geographic originsPCV2 capsid amino acid sequence alignment of the four PCV2 isolates used for the cross-neutralization study. The residues that differ from the genotype PCV2a Stoon-1010 strain are highlighted in grey and black.Back to article page