LIAISON® QuantiFERON® -TB Gold Plus

In partnership with QIAGEN®, DiaSorin has developed a fully-automated assay on the LIAISON® XL Analyzer which automates the analytical process for latent tuberculosis testing using QuantiFERON®-TB Gold Plus Blood Collection Tube technology. 

The LIAISON® QuantiFERON®-TB Gold Plus assay is an in vitro diagnostic test for the detection of interferon-y (IFN-y) in human lithium heparin plasma by chemiluminescence immunoassay (CUA) using the LIAISON® XL Analyzer. QIAGEN QuantiFERON®-TB Gold Plus Blood Collection Tubes, containing a peptide cocktail simulating ESAT-6 and CFP-10 proteins, are used in conjunction with the LIAISON® QuantiFERON®-TB Gold Plus assay to stimulate cells in heparinized whole blood. Detection of IFN-y is used to identify in vitro responses to these peptide antigens that are associated with Mycobacterium tuberculosis infection. 

The assay is a qualitative indirect test for M. tuberculosis infection (including disease) and is intended for use in conjunction with risk assessment, radiography, and other medical and diagnostic evaluations to assist the clinician in making individual patient management decisions. The LIAISON® QuantiFERON®-TB Gold Plus assay must be performed using the LIAISON® XL Analyzer. 

LIAISON® QuantiFERON® Software

LIAISON® QuantiFERON® Software (LQS) is a flexible lab tool that can be installed between LIAISON® XL and LIS to allow you the following features:


  • Management of four different workflow scenarios
  • Sample check-in with barcode reader
  • Duplication of individual barcode labels when necessary
  • Schedule retesting of failed samples
  • Repetition of single or multiple patient tubes
  • Automatic interpretation of results