CIE IGCSE Biology: 复习笔记：10.1.7 Passive Immunity & Breastfeeding

• Passive immunity is a fast-acting, short-term defence against a pathogen by antibodies acquired from another individual
• Antibodies pass from mother to infant via breast milk - this is important as it helps the very young to fight off infections until they are older and stronger and their immune system is more responsive
• The body does not make its own antibodies or memory cells in passive immunity, hence the name

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