22 Yes, babies are born with weak immunity, but it gets stronger over time. In the first few months, they rely on protection from their mother before their immune system develops. How Do Babies Get Immunity? • Placental Antibodies: Pregnant Mothers pass protective antibodies (called IgG) to their babies through the placenta. These antibodies help defend against infections for the first few months. CHAPTER 3 Do Babies Have Low Immunity?
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