QuantiFERON-TB Gold In-Tube test to identify latent tuberculosis infection (LTBI). QFT-Plus
includes TB1 and TB2 tubes which contain selected Mycobacterium tuberculosis (Mtb)
peptides designed to stimulate both CD4 and CD8 T-cells. Aim of this study is the flow
cytometric characterization of the specific CD4 and CD8 T-cell responses to Mtb antigens
contained within QFT-Plus. Methods We enrolled 27 active tuberculosis (TB) patients and 30 …