Biology A-Level
duration of protection
What duration of protection means in Biology A-Level, as defined for AQA.
Definition of duration of protection
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Reference: AQA
Active protection lasts for years, whereas passive protection is gone once the introduced antibodies are broken down, usually within weeks.
Topics that use duration of protection
- Cell recognition and the immune system (AQA A-Level)
Related terms
- active immunity
- agglutination
- animal use in production and testing
- antibody
- antigen
- antigen-antibody complex
- antigen-presenting cell
- antigens in vaccines
Using duration of protection in the exam
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