As an infant the ability to produce antibodies is?

Answer 1

As an infant, the ability to produce antibodies is initially limited because their immune system is still developing. They rely on maternal antibodies transferred through the placenta during pregnancy and through breast milk after birth for early protection against infections. This passive immunity provides crucial defense until the infant's own immune system matures and begins to produce its own antibodies in response to vaccinations and infections. Over time, usually by around six months of age, infants start to produce their own antibodies as their immune system becomes more functional.