Fig. 4: The proportion of CD153+ Mtb300-specific CD4 T cells inversely correlates with Mtb bacterial burden, irrespective of HIV status.

a Correlation between Xpert CT values and the proportion of CD153+ Mtb300-specific CD4 TÂ cells in HIV-uninfected (blue) and HIV-infected (red) persons. Linear regression and 95% confidence band are depicted. b Correlation between Xpert CT values and the proportion of IL-2+ Mtb300-specific CD4 TÂ cells in HIV-uninfected and HIV-infected persons. c Correlation between the proportion of CD153+ Mtb300-specific CD4 TÂ cells and the proportion of IL-2+ Mtb300-specific CD4 TÂ cells in HIV-uninfected and HIV-infected persons. Correlations were tested by a two-tailed nonparametric Spearman rank test.