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
