Figure 2
From: Vaccination of pigs with the S48 strain of Toxoplasma gondii – safer meat for human consumption
T. gondii IgG ELISA. T. gondii IgG ELISA results for all pigs from week 0 to 70 post vaccination. Plots show observed ELISA value of each pig (small dots), estimated mean ELISA value of each group (large solid dots joined by solid line) and corresponding 95% confidence intervals (shaded region). The vertical dashed line indicates the point at which pigs were challenged with 1000 M4 T. gondii oocysts. The horizontal dashed line indicates when animals were classed as seropositive for T. gondii.G1 = Oocyst (M4) challenged pigs, G2 = Vaccinated (S48) and oocyst (M4) challenged pigs, G3 = Vaccinated (S48) pigs, G4 = Negative control pigs.