Comparison of two interferon-gamma release assays for pediatric tuberculosis infection.

Introduction: Identifying tuberculosis infection (TBI) using interferon-gamma release assays (IGRAs) is a primary component of clinical and public health efforts to prevent pediatric tuberculosis. Pediatric data comparing the two IGRAs in the United States are very limited. We compared the performance of the two IGRAs among a large pediatric cohort tested for TBI and assessed whether discordance might be due to quantitative results close to test cut-off values.

Tuberculosis infection prevalence and treatment completion among refugees in the United States.

Background: Identifying and treating tuberculosis infection (TBI) among refugees at elevated risk for developing TB disease is crucial for TB prevention and elimination in the United States (U.S.).

Comparison of three tests for latent tuberculosis infection in high-risk people in the USA: an observational cohort study.

Background: Treatment of latent tuberculosis infection is an important strategy to prevent tuberculosis disease. In the USA, three tests are used to identify latent tuberculosis infection: the tuberculin skin test (TST) and two IFN-γ release assays (T-SPOT.TB and QuantiFERON).