Elderly A study in adult populations showed that the results of both IGRAs were significantly age-dependent with a decreasing trend of sensitivity of 93.3%, 86.5%, 76.8%, and 68.3% for QFT ® -GIT and 96.7%, 94.7%, 87.5%, and 85.7% in T-SPOT ® .TB in the age groups of <29 years, 30–49 years, 50–69 years, and >70 years, respectively [ 80 ].
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Challenges and the Way forward in Diagnosis and Treatment of Tuberculosis Infection.
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