TB QUANTIFERON TB GOLD/IGRA
QFT-Plus is an improved version of QuantiFERON-TB Gold. QFT-Plus uses the same principle, test procedures, and reliable technology that you trust, but is now optimized with innovative tuberculosis-specific antigens that elicit both CD8+ and CD4+ T cell responses – enabling a more accurate assessment of cell-mediated immune response to TB infection (2).
Unlike the TB skin test, QFT-Plus is not affected by the Bacille Calmette-Guérin (BCG) vaccination .
For more information :https://www.quantiferon.com/products/quantiferon-tb-gold-plus-qft-plus/