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Sputum conversion in low positives (1 + and scanty) at the end of intensive phase (IP). Association was deduced between frequencies of (A) CD4+CD25+, (B) CD4+IL-17A, and (C) CD4+CD25+FoxP3CD127lo Treg and sputum conversion among low positives from zero and second months using Mann–Whitney U test. *p ≤ 0.05, **p ≤ 0.01, and ***p ≤ 0.001. M, months; ns, not significant; Treg, T regulatory cells; PPD, purified protein derivative.
