TLR4 and cytomegalovirus infection: Considering TLR4 SNPs, the CC genotype in TLR4 1196 C > T SNP, GC haplotype in both analyzed TLR4 SNPs, as well as GCA multiple variants within the range of TLR4 and TLR9 2848 G > A SNPs, were found to have been correlated with congenital HCMV infection in fetuses and neonates [18].