In contrast, the frequencies of CD3+TCRαβ−CCR7+ and CD3+TCRαβ+CCR7+ MDMs were higher than that of CD3−CCR7+ MDMs (asterisks; Figure 5E), and CCL19 levels (ligand to CCR7) were not modified as a result of H37Ra and H37Rv infection (Figure 5F). Here, CCL19 is linked to infection.