Tuberculosis Diagnostics
QFT assay and skin testing identifies latent tuberculous infection
Published in TB and Outbreaks Week, June 27th, 2006
"Individual's infected with nontuberculous mycobacteria may elicit false-positive reactions on tuberculin skin testing. The QuantiFERON-TB (QFT) assay utilizes tuberculin and M. avium antigens and, therefore, may be more specific for latent tuberculosis infection," researchers in the United States report.
According to the authors, "The objective of this study was to investigate the agreement between the QFT and single and dual antigen skin testing for detecting latent M. tuberculosis and assess the impact of cross-reactions from latent infection with...
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