Within-Subject Variability of Interferon-g Assay Results for Tuberculosis and Boosting Effect of Tuberculin Skin Testing: A Systematic Review

• Richard N. van Zyl-Smit,

  Affiliation Lung Infection and Immunity Unit, Division of Pulmonology and UCT Lung Institute, Department of Medicine, University of Cape Town, Cape Town, South Africa

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• Alice Zwerling,

  Affiliations Department of Epidemiology & Biostatistics, McGill University, Montreal, Canada, Montreal Chest Institute, Montreal, Canada

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• Keertan Dheda,

  Affiliations Lung Infection and Immunity Unit, Division of Pulmonology and UCT Lung Institute, Department of Medicine, University of Cape Town, Cape Town, South Africa, Institute of Infectious Disease and Molecular Medicine, University of Cape Town, South Africa, Centre for Infectious Diseases and International Health, University College Medical School, London, United Kingdom

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• Madhukar Pai

  * E-mail: madhukar.pai@mcgill.ca

  Affiliations Department of Epidemiology & Biostatistics, McGill University, Montreal, Canada, Montreal Chest Institute, Montreal, Canada

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