A haplotype (i.e., a group of alleles that are inherited together) of IL-10, IL-10.1 (alleles CGAA of the SNPs rs 3021097, rs1800896, rs6693899, and rs6703630), was associated with worse clinical outcome, whereas the haplotype 10.2 (alleles CACG of the same SNPs) was associated with better clinical outcome of keratitis [62]. The gene discussed is IL10; the disease is keratitis.