Final answer:
Passive immunity is conferred through breast milk where antibodies produced in the mother's body are passed to the infant, providing temporary protection against common pathogens.
Step-by-step explanation:
Passive immunity is conferred through breast milk, where antibodies produced in the mother's body are passed to the infant.
This type of immunity is naturally acquired and provides temporary protection to the baby against common pathogens in their environment. This allows their immune system to develop and mature.