Tuberculosis infection in foreign-born children: a screening survey based on skin and blood testing.

摘要

This study, carried out in a low tuberculosis (TB) prevalence country with high immigration rates from high TB prevalence countries, deals with the interferon-gamma release assay, QuantiFERON(R)-TB Gold In-Tube, for the diagnosis of latent TB infection (LTBI) in foreign-born children. The results of our study highlight the potential advantages and concerns of using a blood test for diagnosing LTBI in a 'two-step' strategy in foreign-born children.