COVID-19 vaccination in the United Kingdom

The COVID-19 vaccination programme in the United Kingdom is an ongoing mass immunisation campaign for coronavirus disease 2019 (COVID-19) during the COVID-19 pandemic in the United Kingdom.

Vaccinations began on 8 December 2020 after Margaret Keenan became the first person in the world (outside trials) to receive her first dose of two of the Pfizer–BioNTech COVID-19 vaccine. There are three vaccines currently in use; following approval of the Pfizer–BioNTech COVID-19 vaccine (Comirnaty), vaccines developed by University of Oxford and AstraZeneca (Vaxzevria), and the United States National Institute of Allergy and Infectious Diseases and Moderna (Spikevax) have been rolled out. As of 13 September 2021, there were four other COVID-19 vaccines on order for the programme, at varying stages of development.

Phase 1 of the rollout prioritised the most vulnerable, in a schedule primarily based on age. The delivery plan was adjusted on 30 December 2020, delaying second doses so that more people could receive their first dose. A target to give all 15 million people in the top four priority groups their first dose by the middle of February 2021 was announced on 4 January 2021, and achieved on 14 February 2021. The next five groups were offered a vaccine by 15 April, and 32 million doses were administered by that point. In June 2021, all adults aged 18+ were able to get their first dose of a vaccine. The vaccine rollout was expanded to adolescent children and booster doses during the later months of that year.