VDR and leprosy: Polymorphisms in innate immune receptor, mannose-binding lectin (MBL), vitamin D receptor (VDR), and nucleotide-binding oligomerization domain (NOD2) genes influence the immune response and the differentiation of the clinical phenotypes of leprosy (Roy et al. 1999; de Messias-Reason et al. 2007; Sapkota et al. 2010; Berrington et al. 2010; Vasconcelos et al. 2011).