How does a vaccine prevent infection?

  • Google+ icon
  • LinkedIn icon

When vaccine is given small amounts of the dead or inactive pathogen are inserted in to the blood, this activates the body's white blood cells which then produce antibodies. These antibodies destroy the dead or inactive pathogen and by doing so ensures that if the pathogen enters the body again it will be eliminated very quickly.

Rosie B. GCSE Biology tutor, A Level Biology tutor, 13 plus  Biology ...

About the author

is an online GCSE Biology tutor with MyTutor studying at Manchester University

Still stuck? Get one-to-one help from a personally interviewed subject specialist.

95% of our customers rate us

Browse tutors

We use cookies to improve your site experience. By continuing to use this website, we'll assume that you're OK with this. Dismiss