Towards Risk-Based Test Protocols: Estimating the Contribution of Intensive Testing to the UK Bovine Tuberculosis Problem
Figure 10
Herd size and the predicted difference in numbers of γIFN and SICCT false positives.
The probability of a null hypothesis stating that γIFN and SICCT give an equal amount of false positives being true is given for herds containing 50–250 cows. The coloured lines represent different levels of BTB prevalence in the herd, the value of which is given; the dotted line gives the α = 0.05 significance level. Only in very small herds, at high prevalence levels, is SICCT projected not to significantly outperform γIFN.