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Neutralization antibody titres in the experimental pigs against PCV2 genotypes. Sera collected from vaccinated pigs at 14, 35 and 70 dpi were neutralized with (a) PCV2d genotype; (b) PCV2b genotype and (c) PCV2a genotype. Bars (Mean ± SE) indicate the representative data of a single experiment. Data with different small letters superscript indicate treatment effect (p < 0.05).
