Lepromin test is positive in which leprosy –

As you know, lepromin test is cell mediated hypersensitivity (delayed or type IV), and the maximum suppresion of cell mediate immunity occurs in polar lepromatous leprosy → Lepromin test is negative in lepromatous leprosy. Maximally preserved cell mediated immunity is seen in tuberculoid leprosy → Lepromin test gives strongest reaction in polar tuberculoid (TT) leprosy. Lepromin Test TT : ++ BT  : + BB : +/– BL : – LL : – IL : +/–