“…The VDR gene is located at q11‐q13 on chromosome 12. Several major VDR polymorphisms have been studied in the context of viral infection susceptibility, including Fok I (C/T, exon 2, rs2228570), Taq I (T/C, exon 9, rs731236), Bsm I in intron 8 (G/A, rs1544410), Apa I in intron 8 (A/C, rs7975232), Tru9 I in intron 8 (G/A, rs757343), rs739837 (G/T, 3′‐untranslated region [3′‐UTR]), and rs11574129 (G/A, 3′‐UTR) . Single‐nucleotide polymorphisms (SNPs) in the VDR gene have been associated with risk of acute lower respiratory tract infection in young children in Canada, which is consistent with the notion that vitamin D modulates the immune response to viral respiratory tract infections.…”