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LUNG ALERT
A new test for latent tuberculosis infection?
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This study compared the enzyme linked immunospot assay (ELISPOT) with tuberculin skin testing (TST) for the diagnosis of latent tuberculosis infection (LTBI) in low prevalence settings. The ELISPOT assay measures interferon gamma secretion by blood mononuclear cells to ESAT-6, an antigen present in Mycobacterium tuberculosis but not …