original-paper | 06-December-2021
over the disease (Augustynowicz-Kopeć and Zwolska 2008).
For many years the only diagnostic tool to diagnose LTBI was TST, a simple and no expensive test. It is characterized by low specificity due to false-positive results in patients after Bacille Calmette-Guérin (BCG) vaccination or infected with nontuberculous mycobacteria (NTM) (Auguste et al. 2017). For 15 years, the Interferon-Gamma Release Assays (IGRA) have been used as a more specific alternative for TST.
QuantiFERON-TB Gold Plus (QFT
Polish Journal of Microbiology, Volume 70 , ISSUE 4, 461–468