Although studies do not agree on which VDR haplotypes are related to susceptibility or protection for various diseases, the fact that BAt shows susceptibility to leprosy can be explained due to a strong linkage disequilibrium between the BsmI, ApaI, and TaqI haplotypes and the poly(A) variable number of tandem repeats (VNTRs) in the 3′UTR of the VDR gene. This evidence concerns the gene VDR and leprosy.