Figure 2

Individual daily viral genome load in calves’ blood. Results are expressed as the Log copies of BTV segment 2 cDNA per mL of blood. A and B BTV1; C and D BTV2; E and F BTV4; G and H BTV9; I and J BTV16. C, E, G and I are non-vaccinated groups whereas B, D, F, H and J are vaccinated groups; dpi: day post-infection.