Validation of microarray data by qRT-PCR.

<p>Fold changes in in vivo gene expression at 4, 6, 14 and 38h post-infection, compared to the in vivo expression at 8h post-infection, were measured by microarray and qRT-PCR. Data are plotted as log₂ ratios of microarrays data (<i>x</i>-axis) compared with those of qRT-PCR (<i>y</i>-axis).