How would a vaccine prevent someone getting an infection?

Vaccines are made of dead or inactive pathogens. White blood cells in the body come into contact with the pathogen and produce antibodies which destroy the pathogen. The body produces memory cells which means when it is reinfected by the pathogen, it can quickly produce antibodies to destroy the pathogen before symptoms develop.

ND
Answered by Nathan D. Biology tutor

2834 Views

See similar Biology GCSE tutors

Related Biology GCSE answers

All answers ▸

What is the difference between meiosis and mitosis?


Describe a simple food chain and the trophic levels within it


Briefly describe the key differences and similarities between Prokaryotic and Eukaryotic Cells


Dead plants decay faster in soil containing earthworms compared with soil containing no earthworms. Explain why.


We're here to help

contact us iconContact ustelephone icon+44 (0) 203 773 6020
Facebook logoInstagram logoLinkedIn logo

© MyTutorWeb Ltd 2013–2025

Terms & Conditions|Privacy Policy
Cookie Preferences