The mitochondrial outer membrane protein, LRRK2, has been identified by a genome-wide association study (GWAS) as one of the leprosy susceptibility genes in Han Chinese population12, and this was confirmed by our recent case-control study13 and other studies14, 15, although the associated LRRK2 SNPs or their effects were different in these studies. This evidence concerns the gene LRRK2 and leprosy.