Fig. 5.

The phenotypic marker CD4⁺IFN⁻γ⁺CD38⁺CD27⁻ on CD4⁺ cells in different subgroups. A The phenotypic marker CD4⁺IFN-γ⁺CD38⁺CD27⁻ on CD4⁺ cells with negative TB culture stimulated with ESAT 6/CFP10. B The phenotypic marker CD4⁺IFN-γ⁺CD38⁺CD27⁻ on CD4⁺ cells with EPTB stimulated with ESAT 6/CFP10. C⁺: TB culture⁺; C⁻: TB culture⁻; PTB: pulmonary tuberculosis; EPTB: extrapulmonary tuberculosis; LTBI: latent tuberculosis infection; NTM: non-tuberculous mycobacterium pulmonary disease; OD: other respiratory diseases; HC: healthy control