The MMR vaccine is given to children in order to prevent the conditions measles, mumps and rubella. Describe how a vaccine works?
- Vaccines contain dead or inactive forms of a pathogen. - These dead or inactive forms stimulate the white blood cells to produce antibodies against the pathogen. - If a person is infected by the pathogen in the future then the white blood cells can make antibodies more quickly against the bacteria to prevent it making the person ill
VH
Related Biology GCSE answers
All answers ▸What is the difference between a phagocyte and a lymphocyte?
Explain why the number of organisms typically reduces along a food chain
What is the function of the cell nucleus?
Explain how it is possible for two parents without blue eyes (a recessive trait) to have a child with blue eyes