Heatmap of differential gene expression 1 day post vaccination. Heatmap showing changes in gene expression one day post-vaccination with either MVA85A or a Candin placebo. Colors at the top show vaccination: MVA85A (blue) or Candin (red). Genes were selected on the basis of differential expression between the two groups (fdr < 0.05). Clustering using euclidean distance and average clustering methods. Red indicates up-regulated mRNA, blue indicates downregulated.