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Canadian Journal of Infectious Diseases and Medical Microbiology
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Canadian Journal of Infectious Diseases and Medical Microbiology
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2021
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Article
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Tab 1
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Research Article
The Relationship between Pre-Pandemic Interferon Gamma Release Assay Test Results and COVID-19 Infection: Potential Prognostic Value of Indeterminate IFN-
γ
Release Assay Results
Table 1
Evaluation of TBF test.
Results
Mitogen-nil value
TB-specific antigen-nil value (IU/mL)
TBF positive
≥0.5
≥0.35
TBF negative
≥0.5
<0.35
Indeterminate
<0.5
<0.35 vs nil ≤8.0