Figure 5

Relative gene expression in different tissues after S. suis intranasal inoculation. Log₂ of the individual values and mean (black bars) of the relative gene expression in different tissues in S. suis inoculated piglets (gene expression was normalized relative to the PBS group). Piglets were intranasally inoculated with S. suis T15 (non-virulent, blue bars) or S10 (virulent, red bars), and necropsies were performed at 1 and 3 days post-infection. The values and means are shown for the indicated groups (challenge strain and time point) having at least one significant difference when compared to the PBS group and with a mean higher than 2-fold change (log₂ = 1). LN Tracheobr: Tracheobronchial lymph node. * indicates significant differences (P < 0.05) versus the PBS group. Differences between strains at the same time point are labelled with # and differences between time points for the same strain are labelled with +, P < 0.05, in both cases. n = 4 for each group. All expression values and significant differences can be found in Additional file 5.