How do vaccines work?
Vaccines teach your immune system how to create antibodies that protect you from diseases. They do this by showing your body an example of the virus so it knows what to look out for and how to respond in the future.
It's much safer for your immune system to learn this through vaccination than by catching the disease.
Find out more about how vaccines work on the NHS website.
For information in a variety of languages on the Covid-19 vaccine and the importance of having it to protect yourself and reduce the potential of spreading the virus in your community, visit www.eastlondonhcp.nhs.uk/ourplans/covid-explained-in-your-language.htm