COVID-19 booster vaccinations help the immune system fight SARS-CoV-2
Pirbright research shows that immunity to SARS-CoV-2, the virus that causes COVID-19, decreases over time after vaccination, but that booster vaccinations can help restore immunity and help the immune system recognise new variants of the virus, including Omicron.
Vaccination against SARS-CoV-2 has been pivotal in protecting people across the world, especially older adults and the vulnerable, preventing serious disease and hospitalisations.