On this page, you will find infographics to explain how different types of vaccines work, including the Pfizer/BioNTech vaccine, the Moderna vaccine and the Oxford/AstraZeneca vaccine. Scroll down to discover more, click the download link to print the graphic or share on social media tagging @britsocimm to help strengthen public understanding.
As the UK COVID-19 vaccine approval and roll out continues to evolve, these infographics will be updated. They are accurate as of August 2022.
Vaccines train your immune system using a harmless form of the virus, SARS-CoV-2, which causes COVID-19. Vaccines stimulate an immune response without causing illness. Each type of vaccine for COVID-19 works differently to introduce antigens, which are unique features of the SARS-CoV-2 virus, to your body. The antigen triggers a specific immune response and this response builds immune memory, so your body can fight off SARS-CoV-2 in future.
Viral vector vaccines for COVID-19
The University of Oxford/AstraZeneca vaccine uses this technology to protect against COVID-19. This type of vaccine uses an unrelated harmless virus (the viral vector) to deliver SARS-CoV-2 genetic material. When administered, our cells use the genetic material to produce a specific viral protein, which is recognised by our immune system and triggers a response. This response builds immune memory, so your body can fight off the virus in future.