QuantiFERON®-TB Gold (QFT) is a simple blood test that accurately identifies people infected with Mycobacterium tuberculosis, the causative agent of Tuberculosis (TB). QFT is a modern alternative to the 110 year old Tuberculin Skin Test (TST), also known as the Mantoux.
As a modern alternative to the TST:
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QFT is significantly more precise than TST in identifying people who will progress to active TB disease.
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QFT is significantly more sensitive, nearly halving the number of infected people missed by the TST.
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QFT is >99% specific, virtually eliminating false-positive readings
