Clearance of pulmonary mglA infection requires T or B cells. 5 × 102 CFU/lung aerosolized ΔmglA was deposited in wild type, MyD88-/-, IFN-γ-/-, and Rag2-/- C57BL/6 mice. Animals were euthanized at four weeks post-infection. The left lung, median lobe of liver, and spleen were removed, homogenized, and quantitatively cultured. The data represent a single experiment. No significant differences were detected between groups by ANOVA and Tukey’s post-test.