[Determination of umbilical cord blood Ig and its correlation with prenatal infections (author's transl)].

IgG, IgM and IgA were measured in 120 funicular blood samples. At the same time, these determinations were assayed in the mothers. In the serum samples of the newborn, IgA and IgM were found to have levels over 20 mg/100 ml. Antibodies against rubella virus, cytomegalus virus, Listeria monocytogenes and Toxoplasma gondii were measured in order to investigate a possible intrauterine infection. All Ig determinations were performed through the radial immunodiffusion method.