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Mean concentrations of (a) interleukin (IL)-12p40, (b) monocyte chemotactic protein (MCP)-1, (c) macrophage inflammatory protein (MIP)-1α, (d) MIP-1β, (e) sCD40L and (f) tumour necrosis factor (TNF)-α in the plasma of active tuberculosis (TB) patients pretreatment (PT) and at weeks (W) 1, 5, 13 and 26 of treatment. The vertical bars denote 95% confidence intervals. +Significant differences from pretreatment; +: P < 0·05; ++: P < 0·005; +++: P < 0·0005.
