The authors did, however, detect DMRs in another interferon-induced gene, ‘interferon alpha inducible protein 27’ (IFI27), as well as in ‘2′-5′-oligoadenylate synthetase 2’ (OAS2) which is a member of the 2–5 A synthetase family known to be involved in the innate immune response to viral infection. This evidence concerns the gene OAS2 and viral infectious disease.