Figure 1From: Effects of vaccination against paratuberculosis on tuberculosis in goats: diagnostic interferences and cross-protectionKinetics of IFN-γ released after stimulation of whole blood with tuberculins in the vaccinated group. Avian tuberculin (PPD-A, ▲), bovine tuberculin (PPD-B, ■). Results are expressed as mean ΔOD450 (mean of OD450 of antigen-stimulated values with unstimulated values subtracted) ± 95% confidence interval.Back to article page