Figure 3

Antigen-specific antibody (IgG) levels in serum over a 6 week period post-infestation with P. ovis. Serum IgG responses specific for cathepsin L; Pso o 10; muGST; Pso o 1; Pso o 2, Pso o 3 and cyclophilin, respectively over a 6 week period of infestation with P. ovis during Trial 2 only (2013). Data on IgG levels are presented on the observed scale (OD_450nm). The plot shows observed IgG levels of each lamb of the vaccine (triangles) and control (circles) groups, estimated mean IgG level of vaccine (solid line) and control (dashed line) groups and corresponding 95% confidence interval (CI) envelope (shaded region). Green arrows indicate timing of immunisations.