MRC1 and leprosy: The following genes were determined to have replicated and/or validated associations with clinical forms of leprosy: 1) TNF, associated with the MB form in Indian8 and Thai populations,9 2) MRC1 and MBL2, associated with the MB form in Brazil10,11 and Nepal,12 and to the PB form in China,13,14 3) TLR2, associated with the PB form in Ethiopia15 and Malawi and 4) LRRK2 associated with the PB form in China16 and India.17