Salam et al. in the studyof ARG2 gene polymorphisms found an association of thers3742879*G allele in the haplotype structure (TAGTCATGC,rs12885261, rs7144243, rs3759757, rs4902501, rs7156352,rs4902503, rs7140310, rs742869, rs3742879, rs10483801)with asthma in patients of European origin (Salam et al., 2009).Allelic variants of the ARG2 gene specifically in the haplotypestructure might represent an important risk factor of asthmadevelopment and progression. The gene discussed is ARG2; the disease is asthma.