How do vaccines work?

Vaccines teach our bodies’ defences – the immune system – how to protect us from disease. They take advantage of the natural functions of our immune system, which is exposed to and fights off millions of pathogens every single day.

Vaccines teach our bodies’ defences – the immune system – how to protect us from disease. They take advantage of the natural functions of our immune system, which is exposed to and fights off millions of pathogens every single day.