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CAIE A-Level Biology 11.2.6 Vaccination Programmes

Practise explaining herd immunity through fewer susceptible hosts and interrupted transmission, then evaluate coverage, access, storage, uptake, boosters and pathogen variation.

Syllabus
2028–2030
Course
Biology 9700
Level
AS

Exam points

  • explain herd immunity through fewer susceptible hosts and interrupted transmission
  • connect high coverage with indirect protection of unvaccinated vulnerable people
  • evaluate access, delivery, uptake, boosters and pathogen change as programme constraints

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