Britain Begins Mass COVID Vaccine Campaign

Margaret Keenan, 90, is applauded by staff as she returns to her ward after becoming the first patient in the UK to receive the Pfizer-BioNTech COVID-19 vaccine, at University Hospital, Coventry, England, Dec. 8, 2020.

British Prime Minister Boris Johnson visits Guy's Hospital on the first day of administering a coronavirus vaccine in London, Dec. 8, 2020.

Medical staff in booths prepare to administer the Pfizer-BioNTech COVID-19 vaccine at a vaccination centre in Cardiff, Wales, Dec. 8, 2020.

Medical staff in booths prepare to administer the Pfizer-BioNTech COVID-19 vaccine at a vaccination centre in Cardiff, Wales, Tuesday Dec. 8, 2020. The United Kingdom, one of the countries hardest…

A vial of the Pfizer-BioNTech COVID-19 vaccine, as the mass public vaccination program gets underway, at the NHS Louisa Jordan Hospital in Glasgow, Scotland, Dec. 8, 2020.

Paula McMahon prepares a shot of the Pfizer-BioNTech COVID-19 vaccine, as the mass public vaccination program gets underway, at the NHS Louisa Jordan Hospital in Glasgow, Scotland, Dec. 8, 2020.

Deputy charge nurse Katie McIntosh show information about the Pfizer-BioNTech COVID-19 vaccine to Clinical Lead of Outpatient Theatres Andrew Mencnarowski at the Western General Hospital.

Henry (Jack) Vokes, 98, receives the Pfizer-BioNTech COVID-19 vaccine at Southmead Hospital, Bristol, England, Tuesday Dec. 8, 2020. The United Kingdom, one of the countries hardest hit by the…

Henry (Jack) Vokes, 98, reacts receiving the Pfizer-BioNTech COVID-19 vaccine at Southmead Hospital, Bristol, England, Dec. 8, 2020.

Dr Doreen Brown, 85, receives the first of two Pfizer/BioNTech COVID-19 vaccine jabs administered at Guy's Hospital in London, Dec. 8, 2020.

Care home worker Pillay Jagambrun, 61, receives the Pfizer/BioNTech COVID-19 vaccine in The Vaccination Hub at Croydon University Hospital, south London, on the first day of the largest immunization program in the UK's history, Dec. 8, 2020.

Sister Joanna Sloan receives the Pfizer-BioNTech COVID-19 vaccine, as the first person in Northern Ireland at the Royal Victoria Hospital, in Belfast, Dec. 8, 2020.

A woman walks past graffiti with the words Victory to the NHS (National Health Service) on a wall at the Royal Victoria Hospital.