Graphs illustrating the dynamics of FMDV infection with the O/SKR/2010 strain by direct inoculation of steers (A) and contact exposure of steers (B) or pigs (C).

<p>Time on the X-axes is in hours post-inoculation (A) or hours post-exposure (B and C). Lines represent log₁₀ RNA copy numbers per ml of virus expressed in the left Y-axes. Bars represent a cumulative index of FMD lesion distribution expressed in the right Y-axes. (i) Shaded yellow areas in figures A and B indicate the 24 h period that these animals were sharing the room. (ii) Shaded green areas in figures A and C indicate the 24 h period that these animals were sharing the room.