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. Author manuscript; available in PMC: 2014 Nov 1.
Published in final edited form as: Biologicals. 2013 Oct 10;41(6):10.1016/j.biologicals.2013.09.005. doi: 10.1016/j.biologicals.2013.09.005

Fig. 2.

Fig. 2

LIPS detection of antibodies against two different Renilla luciferase fusion proteins of PCV-2. Antibodies to the PCV-2-CAP-FL and PCV-2-CAP-Δ1 were analyzed by LIPS in 46 porcine serum samples. Each symbol represents individual serum samples tested with each protein fragment and the raw LU values are shown on the Y-axis. The geometric mean and 95% confidence interval of the antibody level are also denoted. The Mann Whitney U test was used to test the statistical significance of the differences between the antibody levels in the PCV-2 positive and PCV-2 negative samples. Raw LU values are shown without subtracting background binding to protein A/G beads. The dashed line represents the diagnostic cut-off, derived from the mean plus 2 standard deviations of the PCV-2 seronegative porcine samples.