Reports suggested the UK could vaccinate all adults by early June, overtaking the EU by two months.
According to research company Airfinity, the speedy vaccine rollout will save tens of billions of pounds.
The report said the UK is on course to offer every adult at least one jab by June 10 and every person over-40 could be vaccinated by Easter.
Former Brexit secretary David Davis said, “If you wanted a single demonstration of why Brexit was important, you’ve got it. If we were still in the EU now some people would be dead who are not. It’s nothing to crow about, it’s just true.”
Vaccines Minister Nadhim Zahawi previously revealed the UK will see a “rapid increase” in vaccine supply this month.