TB Elimination - Mayo Clinic
https://www.mayoclinic.org/documents/cdc-tb-skin-test-pdf/doc-20079766
WebAn induration of 15 or more millimeters is considered positive in any person, including persons with no known risk factors for TB. However, targeted skin testing programs should only be conducted among high-risk groups. What Are False-Positive Reactions? Some persons may react to the TST even though they are not infected with M. tuberculosis.
DA: 58 PA: 46 MOZ Rank: 91