Fourth-Generation QuantiFERON-TB Gold Plus: What Is the Evidence?

Author:

Shafeque Arena1,Bigio Jacob23,Hogan Catherine A.14,Pai Madhukar35,Banaei Niaz146

Affiliation:

1. Department of Pathology, Stanford University School of Medicine, Stanford, California, USA

2. Research Institute of the McGill University Health Centre, Montreal, Quebec, Canada

3. McGill International TB Centre, Montreal, Quebec, Canada

4. Clinical Microbiology Laboratory, Stanford Health Care, Stanford, California, USA

5. Department of Epidemiology, Biostatistics and Occupational Health, McGill University, Montreal, Quebec, Canada

6. Division of Infectious Diseases and Geographic Medicine, Stanford University School of Medicine, Stanford, California, USA

Abstract

QuantiFERON-TB Gold Plus (QFT-Plus) is the latest generation of interferon gamma release assays (IGRAs) to receive approval from the U.S. FDA, replacing its predecessor, QuantiFERON-TB Gold In-Tube (QFT-GIT). The novelty of QFT-Plus is that it elicits a response from CD8 T cells, in addition to CD4 T cells, thus collecting a broader response from T-cell subsets than QFT-GIT. It was developed with the aim to improve the detection of latent tuberculosis infection (LTBI), especially among recently exposed contacts, immunocompromised hosts, and young children.

Publisher

American Society for Microbiology

Subject

Microbiology (medical)

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