immune tolerance in pregnancy

It may thus be regarded as insufficient immune tolerance in pregnancy.

Other examples of insufficient immune tolerance in pregnancy are Rh disease and pre-eclampsia:

One of the most important natural kinds of acquired tolerance is immune tolerance in pregnancy, where the fetus and the placenta must be tolerated by the maternal immune system.

HLA-G may play a role in Immune tolerance in pregnancy, being expressed in the placenta, while the classical MHC class I genes HLA-A and HLA-B are not.

Immune tolerance in pregnancy or gestational/maternal immune tolerance is the absence of a maternal immune response against the fetus and placenta, which thus may be viewed as unusually successful allografts, since they genetically differ from the mother.

The Eutherian Fetoembryonic Defense System (eu-FEDS) is a hypothetical model describing a method by which immune systems are capable of recognizing additional states of relatedness like "own species" such as is observed in maternal immune tolerance in pregnancy.