Figure 9From: Porcine circovirus type 2 (PCV2): genetic variation and newly emerging genotypes in ChinaReactivity of the 19 isolates with mAb 1D2. All isolates showed strong reactivity with mAb 1D2 except the YJ isolate (PCV2b) and the PCV2d genotype isolates (AH, MDJ and BDH), indicating that viruses of the PCV2d genotype are not recognized by mAb 1D2 and that the ORF2 mutation in strains of this genotype results in antigenic changes in the PCV2 Cap protein.Back to article page