Vaccinating mothers during pregnancy protects their babies from COVID
Source: Medical Xpress
If a pregnant woman catches COVID, it's very rare for the virus to be passed through the placenta to the fetus. But it's long been known that a mother's antibodies can cross the placental barrier to the baby and can also be transferred via breast milk after the baby is born. This is why it's common in many countries for pregnant women to be vaccinated against flu and whooping cough.