The LAMP assay did not generate a positive result when challenged with a range of non-target species, including Gadus macrocephalus, and Gadus chalcogrammus, indicating a high level of specificity.
The probability that LTBI generates a positive result is assumed to be the same as the probability that active TB generates a positive result, as there is no gold standard for LTBI.
This would, however, generate a positive result for smokeless tobacco only if users switched to smoking products.
Another explanation is that the assays are so sensitive that even rare infected cells generate a positive result.
By providing another opportunity to generate a positive result, adding a third PCR measurement necessarily increases sensitivity and decreases specificity, but the amount of change depends on the degree of dependence between the individual PCR results for an individual.
The high positive predictive value of culture means that any badger generating a positive culture result can be considered infected with M. bovis with an estimated probability of 93%.
It is necessary to distinguish analytical sensitivity (minimum number of HPV genomes to be present in a sample to generate a positive test result) from clinical sensitivity (proportion of women with disease who test positive) (Table 1).
Figure 6 shows very clearly that dual-display phage SR21 which is pre-incubated with the positive sera can specifically bind to the autoantibodies in the serum with its pVI-displayed UH-RA.21 autoantigenic target and also to the streptavidin-coated magnetic beads by its pVII-displayed SBP at the same time, and generate a positive ELISA result.
Final results with a C8 acylcarnitine ≥ 0.4 μmol/L with accompanying elevations of secondary analytes (or age at collection greater than 7 days), or a C8 acylcarnitine ≥ 0.5 μmol/L in isolation generated a screen positive result.
It is possible, however, that chance or confounding factors such as ethnicity and the influence of known risk factors such as oral contraceptive use may have generated a false positive result.
