Biology 9700 · AS & A Level · Proteins

Proteins — practice question

Which statement describes how a vaccination programme can reduce the spread of an infectious disease in a population?

  • AUnvaccinated individuals are less likely to meet a vaccinated individual.
  • BUnvaccinated individuals are less likely to meet an infected individual.
  • CVaccinated individuals cannot catch the disease.
  • DVaccinated individuals have natural active immunity.

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