NEW YORK (360Dx) – The World Health Organization has deemed interferon gamma-release assays (IGRAs) an appropriate alternative to the tuberculin skin test (TST) for determining which patients in regions with a high disease burden may progress to active tuberculosis.

WHO issued the recommendation this week as part of broader guidelines for the diagnosis, treatment, and management of latent TB. The new recommendation is a positive for Qiagen and Oxford Immunotec, both of which market IGRAs.

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