Differentiated THP-1 cells, MDM, and AM were used to determine the impact of NFκB inhibition on intracellular recovery of viable MTB. The mean number of intracellular MTB isolated 1 hr following infection (Day 0) was similar between the control cells and cells pre-treated with BAY, indicating that inhibition of NFκB did not impact the phagocytosis of MTB by the macrophages (Figure 2A,B,C). Here, NFKB1 is linked to infection.