Biology GCSE
Herd immunity
What Herd immunity means in Biology GCSE, as defined for AQA.
Definition of Herd immunity
Check what you remember
Read the wording for your board, then hide it and explain Herd immunity in your own words. Rough notes are fine. This is a self-check, with no mark or grade.
Reference: AQA
When a large proportion of a population is immunised, the pathogen cannot easily pass from person to person, so the spread of disease is reduced and unvaccinated people are protected.
Topics that use Herd immunity
- Vaccination (AQA GCSE)
Related terms
- Antigens and antibodies
- Immunity
- immunological memory
- Memory cells
- Specific immune response
- Vaccination
- Antigen–antibody binding
- Prevention of infection
Using Herd immunity in the exam
Check the command word and mark scheme for your exact question. After comparing your explanation with the reference, use the term in an answer on the linked topic. This practice does not predict an exam mark.
Practise Biology questions
Create a free account to answer exam-style questions on this topic and get feedback on your answers.
Start free
All Biology GCSE termsA week of Premium from your first lesson · Then the free plan continues · No card, no charge