In our study, all the four tested zinc export-related mutants exhibited enhanced intracellular survival abilities (significantly higher CFU counts than WT and higher fold net replications – significantly different from WT for 4/74ΔzntA, 4/74ΔzitB, and 4/74ΔzntA/zitB) within the Nramp1-positive murine macrophages at 20 h post-infection (Figures 4B,C). Here, SLC11A1 is linked to infection.