South Carolina, who completed a risk factor questionnaire and underwent testing with the 3 tests: 1) tuberculinskin test(TST), 2) theinterferon gammarelease assays (IGRAs) QuantiFERON®-TB Gold In-Tube test (QFT-GIT) and 3) the TSPOT® TB test (T-Spot). The Battey Skin Test (BST)...