Non-significant trends demonstrated similar IgG (81.8% vs. 87.8% in the non-excretion group, p = 0.458) and IgM positive VIDAS (an automated enzyme-linked fluorescent immunoassay, for the detection CMV IgM antibodies) (78% vs. 85.8% in the non-excretion group, p = 0.399) rates, as well as similar gestational age at CMV infection diagnosis (17.4 vs. 16.4 weeks in the positive excretion group, p = 0.464). This evidence concerns the gene CD40LG and cytomegalovirus infection.