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Infectious Disease and Immunity

Quick questions on Vaccination and herd immunity: H2 Biology Infectious Disease and Immunity

3short Q&A pairs drawn directly from our worked dot-point answer. For full context and worked exam questions, read the parent dot-point page.

What is q1?
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State what a vaccine contains that triggers the immune response. [1 mark]
What is q2?
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Explain why active immunity lasts longer than passive immunity. [2 marks]
What is q3?
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Explain how herd immunity protects a person who has not been vaccinated. [2 marks]

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