<prompt> Interferon-gamma release assays used to diagnose tuberculosis is :T-SPOT.TBB-SPOT.TBNIGRAsC-SPOT.TB  <response>: Two in vitro assays that measure T cell release of IFN with the highly TB-specific antigens ESAT-6 and CFP-10 are available. The T-SPOT.TB is an enzyme-linked immunospot ELISpot assay, and the QuantiFERON-TB Gold. 