A patient gets the AstraZeneca vaccine on Wednesday in London.

LONDON, ENGLAND – MARCH 24: Members of the public receive the AstraZeneca jab at East London Mosque on March 24, 2021 in London, England. After weeks of tensions over Covid vaccine supplies, the UK and the European Union have said they will work together to improve their relationship. The European Commission had proposed tougher export controls on vaccines, amid ongoing tensions over supplies of the Oxford-AstraZeneca jab. (Photo by Dan Kitwood/Getty Images)