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Figure 1 | BMC Infectious Diseases

Figure 1

From: Contribution of Interferon gamma release assays testing to the diagnosis of latent tuberculosis infection in HIV-infected patients: A comparison of QuantiFERON-TB Gold In Tube, T-SPOT.TB and tuberculin skin test

Figure 1

Venn diagram illustrating how often the tuberculin skin test (TST), QuantiFERON-TB Gold (QFG), and T-SPOT.TB tests coincide in terms of positives as defined by the manufacturers in 372 HIV-infected patients (A) and in 302 HIV-infected patients with no past or current TB nor treated for of latent tuberculosis infection (B).

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