Question

what do you meant by erythroblastosis foetalis?

Answer 1

Erythroblastosis fetalis is hemolytic anemia in the fetus (or neonate, as erythroblastosis neonatorum) caused by transplacental transmission of maternal antibodies to fetal RBCs. The disorder usually results from incompatibility between maternal and fetal blood groups, often Rh0(D) antigens.

Answer 2

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$\pink\longmapsto\:$ Erythroblastosis foetalsis is an alloimmune condition that develops in an Rh positive foetus whose father is Rh positive and mother is Rh negative.

$\pink\longmapsto\:$ In this order the antibodies developed against the Rh antigen in mother ,cross,placenta and destroy the RBC cells of the Rh positive foetus during second pregnancy.

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