The chest roentgenogram results were normal. The skin biopsies were negative for acid-fast bacilli (AFB). Mycobacterial cultures of the blood and skin were negative. However, the QuantiFERON-TB Gold test was positive, which led to a diagnosis of latent TB infection being made. The patient ...
Not needing to return for the test results like the TB skin test which requires 2 visits (we can send the results to you, your school or work) BCG vaccine will not cause a false positive in Quantiferon test as it sometimes does with a TB Skin test ...
Children with negative QFT results had lower mean serum zinc level (P=0.01) and higher ferritin levels (P=0.007) as compared to those with positive test. Higher proportion of children with positive TST were vitamin D deficient/insufficient (P=0.003). CONCLUSION: Micronutrient status, especially ...
False negative results of quantiFERON TB-2G test in patients with active tuberculosis False negative results of Quantiferon TB-2G test on patients with active tuberculosis. J Infect Dis 2009;62:300-2.Kobashi Y, Shimizu H, Ohue Y, ... Y Kobashi,H Shimizu,Y Ohue,... - 《Japanese Journa...
Effect of preventive therapy on QFT-Plus results in LTBI subjects We evaluated the score response to antigens present in QFT-Plus test in subjects with LTBI at baseline and at the end of TB preventive therapy. LTBI subject enrollment was based on a positive QFT-Plus score at baseline. At ...
Thus, it is also reasonable to suppose that false negative results could occur because of the present high cut-off value of the test recommended by the manufacturer. Studies showed that lowering of the cut-off value recommended by the manufacturer could decrease the specificity of the test based...
Children with negative QFT results had lower mean serum zinc level (P=0.01) and higher ferritin levels (P=0.007) as compared to those with positive test. Higher proportion of children with positive TST were vitamin D deficient/insufficient (P=0.003). Conclusion: Micronutrient status, especially ...
The t-SPOT technique is fast, specific, and is less influenced by the BCG vaccinations compared to the tuberculin skin test because both of these tests use different antigens. T-SPOT test consists of a nil control, Panel A (ESAT-6) and Panel B (CFP10) results, and a positive control....
Children with negative QFT results had lower mean serum zinc level (P=0.01) and higher ferritin levels (P=0.007) as compared to those with positive test. Higher proportion of children with positive TST were vitamin D deficient/insufficient (P=0.003). CONCLUSION: Micronutrient status, especially ...
Conventional methods of Mycobacterium tuberculosis detection such as acid-fast staining microscopy and tuberculin skin test are widely used, but with low sensitivity or specificity. In recent years, a newly developed quantitative test, 纬-interferon release test (IGRA), has been recognized and widely ...