C3.2.17—Herd immunity Topic Practice
C3.2.17—Herd immunity Topic Practice
Students practise evaluating how population-level immunity thresholds protect unvaccinated individuals from infectious disease transmission.
How this is tested
- interpret herd immunity thresholds using R₀ to explain why measles requires >95% immunity but influenza does not
- distinguish between direct protection (vaccination) and indirect protection (herd immunity) in epidemiological