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QuantiFERON-TB Gold In-Tube

Applications and Keys to Accurate Performance


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QuantiFERON-TB Gold In-Tube Applications, cont.

Slide 17

November 2009

On the next slide, we see a summary of the specificity data from this study, and this is where the major difference was observed between the skin test and QuantiFERON In-Tube. If we first look at the specificity data for those patients that had a history of BCG vaccination, the tuberculin skin test demonstrated a pooled specificity of 59%, while QuantiFERON In-Tube showed a significantly higher specificity of 96%.

Applications, cont.


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