Why do we vaccinate people - how does it work?

Vaccination is an important method used in healthcare to prevent people from getting certain diseases. Vaccines contain a dead or weakened (attenuated) form of a pathogen, and the immune system responds to this as if it were a real pathogen. 1) The vaccine is given.2) After an incubation period, white blood cells are stimulated to produce antibodies.3) Antibodies bind to antigens on the surface of the pathogen. 4) Special memory cells remain in the blood and speed up the immune response if the same pathogen is encountered again.

Answered by Ella S. Biology tutor

3034 Views

See similar Biology GCSE tutors

Related Biology GCSE answers

All answers ▸

Describe the course of blood through the heart and lungs, explaining how it becomes oxygenated.


How does natural selection work?


What are the different parts of a plant cell and what are their functions?


Name a product of photosynthesis?


We're here to help

contact us iconContact usWhatsapp logoMessage us on Whatsapptelephone icon+44 (0) 203 773 6020
Facebook logoInstagram logoLinkedIn logo
Cookie Preferences