The higher protein secretion levels of IL-12(p70), TNF-β, and IL-15 displayed in rBCG-LTAK63-infected M1 are in agreement with the findings at the transcriptomic level in that infection with rBCG-LTAK63 enhanced the inflammatory and activated cellular immune response profile compared to BCG-infected M1 macrophages. Here, IL15 is linked to infection.