<prompt> Type-I lepra reaction is commonly seen in:Histoid LeprosyLepromatous LeprosyBorderline tuberculoid leprosyPolyneuritic leprosy  <response>: type 1 reaction reversal reaction is a delayed hypersensitivity reaction associated with a rapid increase in specific CMI activity against M.leprae. It usually occurs in borderline types of leprosy, BBBT BLcharacteristically associated with immunological instability. Page no.2046Reference IADVLs concise textbook of dermatology 