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Expression of CXCL10 (A), IFN-γ (B), and IRF-7 (C) mRNA plotted against FMDV genome load. Combined linear regression lines for nonvaccinated animals (red) and vaccinated animals (blue) are shown with 95% confidence intervals (areas shaded gray). In persistently infected carriers, CXCL10, IFN-γ, and IRF-7 mRNA expression levels were negatively correlated with the FMDV genome load.
