<p>A. Infection in resting bone marrow derived macrophages from BALB/c mice. B. Infection in IFNγ activated bone marrow derived macrophages from BALB/c mice. These results are the means and standard deviation derived from one representative of three independent experiments. C. Infection in resting bone marrow derived macrophages from C57BL/6 mice. D. Infection in IFNγ activated bone marrow derived macrophages from C57BL/6 mice. E. Infection in resting bone marrow derived macrophages from iNOS KO mice. F. Infection in IFNγ activated bone marrow derived macrophages from iNOS KO mice. The results are the means and SDs derived from triplicate wells. The experiments have been reproductively repeated once. Solid square: WT <i>M. tuberculosis</i> H37Rv. Open square: YHΔ<i>tpx.</i> Solid triangle, YH<i>tpx</i>Comp.</p
