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.

Why use QuantiFERON?

As a modern alternative to the TST:

QFT is significantly more precise than TST in identifying people who will progress to active TB disease. QFT is significantly more sensitive, nearly halving the number of infected people missed by the TST. QFT is >99% specific, virtually eliminating false-positive readings
^