Commercial assays have high false positive rate

Several reports have noted the occurrence of false positive results when HIV viral load assays have been used qualitatively to

Review: commercial interferon-gamma release assays have high specificity but suboptimal sensitivity for detecting latent TB.

M e t h o d s Data sources: MEDLINE (to October 2006), bibliographies of relevant studies, and handsearches of the International Journal of Tuberculosis and Lung Disease. Study selection and assessment: Englishlanguage studies that used QuantiFERON (QFT) or Elispot tests with overnight incubation of peripheral blood lymphocytes stimulated with RD1 antigens. No gold standard exists for testing l...

HIV false positive results and Flu vaccination

Abstract False positive results are the major problem influencing interpretation of Clinical Laboratory test. They are originated mostly in the other diseases, technical errors and the recent vaccination. The problem has been presented since 1991 is positive HIV test after influenza Vaccination (1). The False positive has been reported in Cases using Eliza, one of The most common test to screen...

False-positive rate in prenatal diagnosis of surgical anomalies.

BACKGROUND/PURPOSE Technical refinements and increasingly sophisticated equipment have led to higher sensitivity in prenatal diagnosis of congenital malformations; however, such progress may be accompanied by decreased specificity. The aim of this study is to evaluate evolution of prenatal diagnosis from the first sonographic suspicion of fetal anomaly until after delivery (diagnosis confirmed,...

On the false-positive rate of Bloom filters

Bloom filters are a randomized data structure for membership queries dating back to 1970. Bloom filters sometimes give erroneous answers to queries, called false positives. Bloom analyzed the probability of such erroneous answers, called the false-positive rate, and Bloom’s analysis has appeared in many publications throughout the years. We show that Bloom’s analysis is incorrect and give a cor...