TNF and Granuloma: ΔlipY C+Mtb cells from granulomas treated with anti-TNFα mAb had a lower percentage of Rif resistance as compared to the ΔlipY C+Mtb cells from granulomas treated with control IgG, although the difference in percentage of Rif resistance of the ΔlipY C+Mtb cells from granulomas treated with control IgG and anti-TNFα mAb, was less as compared to the difference in the percentage of Rif resistance of the WT Mtb cells from granulomas treated with control IgG and anti-TNFα mAb.