Eli5: How come immunization shots that a woman gets earlier in her life don’t carry on/pass that immunity to her children when she gives birth?

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E.g. if a woman has a tetanus shot, why does the kid need one? If she has an mmr shot, why does her child need to get one? If the lady also has a shot immunizing herself from chicken-pox, why isn’t the child also immune from chicken-pox?

Wouldn’t the child be immune from the diseases/ sicknesses that the mother already got her shots for?

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Anonymous 0 Comments

The baby is isolated from the mother. They do not share any systems. There is a membrane (placenta) that facilitates the moving of nutrients, proteins and water, but that’s it.

Your immune system is in *your body.* It s a response your cells have learned You can’t pass that on. The baby has its own, isolated body within the mother’s body. A baby and a mother can have 2 different blood types. The mother can have HIV and the baby does not have it because, they are isolated from each other.

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