Fig 2. Comparison of gene expression levels between control and MAP-challenged mice.

A) Scatter plots comparing gene expression levels between MAP-challenged and control groups at 3, 6, and 12 weeks post-infection. Red dots indicate an expression level change of |fold change| ≥ 2. The expression levels were calculated by using the base–2 logarithm of the normalized hybridization signals from each sample. B) Numbers of genes with altered expression levels during this experiment. C) Venn diagram showing overlapping genes that were significantly up- or down-regulated in MAP-challenged mice at 3, 6, and 12 weeks post infection (p < 0.05, |fold change| ≥ 2).