Fig. 2

CSFV RNA detection in serum samples at weaning and 21 dpv versus antibody response after vaccination. CSFV RNA loads in sera expressed as Ct values (left Y axis) at weaning (white dots) and 21 dpv (white rhombuses). Ct values equal to or less than 42 were considered to indicate positive results (black line). Antibody response against the E2 glycoprotein detected by a commercial ELISA test (IDEXX) expressed as blocking % (right Y axis); samples with blocking % values more than 40 were considered positive (dotted line)