Stormont test

Stormont test

a more sensitive test for tuberculosis in cattle. The test is begun as a single intradermal test by an intradermal injection, usually into a caudal tail fold. The test is read at 72 or 96 hours and if it is inconclusive a second injection is made at the same site at 7 days after the first injection and the test read 24 hours later. A positive reaction is a 5 mm increase in the thickness of the skin.