Fig. 2From: Comparative efficacy of experimental inactivated and live-attenuated chimeric porcine circovirus (PCV) 1-2b vaccines derived from PCV1 and PCV2b isolates originated in ChinaMean values of the serum neutralizing antibody (NA) titers in the different groups. The grouping and treatment of the experimental pigs are summarized in Table 1 Back to article page