Maternal seroconversion during the seventh month of pregnancy was confirmed by retrospective analysis of maternal serum sample taken monthly for toxoplasmosis testing (IgG < 0.4 UI/l and IgM < 0.9 UI/l on the 7th month of gestation and IgG = 0.7 UI/l and IgM = 2.9 UI/l one month latter) with ETI-CMV-G and ETI-CMV-M assays (DiaSorin, France). Here, CD40LG is linked to toxoplasmosis.