Monthly follow-ups of interferon-{gamma} release assays among healthcare workers in contact with TB patients
Chest, 05/07/2012
Park JS et al. – Fluctuation in Interferon–γ (IFN–gamma)–release assays (IGRAs) findings was common when health care workers in contact with TB patients were tested monthly. This could be a result of poor reproducibility of the assay, repeated infection and true reversion, or periodic secretion of antigens from M. tuberculosis.



