Following their recent report, the authors observed 449 combinations of the mother and her new born baby from the view point of the presence or absence of the isoaggiutinins in the sera of the mother and of the umbilical cord, and the results were compared with the blood groups of the mothers.
The blood groups of the mothers and the serum-types of the new born babies were as iollows:
Aβ, Ao, Bα, Bo, Oα, Oβ, Oαβ, Oo, ABo
In view of the above findings, the authors daubted that the isoagglutinins contained in the serum of the mother is readily transferred to the foetus through the placenta.
