MBP64, but do come out positive, along with the actively infected, in tuberculin testing.

ECONOMIST: A poor diagnosis

However, vaccination of cattle against TB is currently prohibited by EU legislation, mainly because BCG vaccination of cattle can interfere with the tuberculin skin test, the main diagnostic test for TB.

BBC: Q&A: The badger cull

According to Sequella, early trials show that the patch picks up 98% of those infected, yields few false positives and is easier to use in the field than tuberculin-testing, since no needles are required.

ECONOMIST: A poor diagnosis