COVID-19: Vaccine rollout to be 'considerably slower' until end of July, government advisers say

England's vaccine rollout will be 'considerably slower' until the end of July and could drop to 2.5 million doses a week, the government's scientific advisers have said. Previous modelling for SAGE said the number of COVID-19 vaccine doses was predicted to reach up to 3.9 million doses a week. But in the latest paper, published on Monday, scientists expect to deliver 2.7 million doses per week in England until the end of July and 2 million after that date.