Transplacental crossing is not seen in –
Toxic erythma is a normal finding in newborn.
In Rh incompatibility and ABO incompatibility antibodies can cross placenta and cause erythroblastosis fetalis.
Toxoplasmosis can cross placenta.
Iso immune haemolytic anemia
Rh–haemolytic anemia
Toxoplasmosis
Toxic erythema