The data in this Excel file are the source data for Figures 3-5 of the manuscript. The headings for Figure 3 refer to the experiment date, experimental group (mouse genotype), time post-infection (DPI), tissue, and composition of the tissue: number of microglia (#MG), percentage of microglia expressing inducible nitric oxide synthase (%MG iNOS+), number of infiltrating myeloid cells (#inf. Myeloid), and the percentage of the infiltrating myeloid cells expressing iNOS (%Inf. Myeloid iNOS). Figure 4. Experiment date, group refers to mouse genotype, timepoint is day post-infection, tissue, and the number of CD4 T cells (#CD4), number of CD8 T cells (#CD8), % expressing the cytokine IFN-gamma (%CD4/8 IFNg+). Figure 5. Experimental date, group (mouse genotype), time point refers to day post-infection, tissue where cells were collected, number of live cells in the tissue (#live cells), number of CD4 T cells (#CD3+CD4+), number of CD8 T cells (#CD3+CD8+), % making cytokine IFN-gamma, # of monocytes by Ly6C expression (low or high)