The US vaccine is, along with Pfizer and Astrazeneca, one of three that has currently been approved for use in the UK by the Medicines and Healthcare products Regulatory Agency (MHRA. Doctors are expected to start administering the Moderna jabs within the next three weeks, according to the Mail On Sunday. So far, the UK has managed to give 56.4 percent of adults at least one Covid jab.
The Government hopes that all adults will have been offered a vaccination by the end of July.
The Moderna vaccine is being manufactured by the Swiss-based Lonza biotech company.
Trials have shown that the jab is highly effective at preventing symptomatic infections after the second dose, with an efficacy rate of 94.1 percent.
It comes as Number 10 prepares to roll back more of the Covid restrictions it was forced to put in place to combat the pandemic.
From Monday, up to six people or two full households will be able to meet in parks or in back gardens.
The green light will also be given to weddings, which will no longer be limited to “exceptional circumstances”.
At the same time, the “stay at home” message will be rescinded and people will no longer be confined to their homes.
The Prime Minister said: “As things stand, I can see absolutely nothing in the data to dissuade me from continuing along our roadmap to freedom, unlocking our economy and getting back to the life we love.”
However, he cautioned that it was still too early to claim victory over the virus, pointing to the third wave that was sweeping through Europe.
Mr Johnson told a virtual conference of Tories on Saturday that “bitter experience” had taught him that this could hit the UK in the near future.
“I think the second half of the year will have the potential to be really fantastic,” he said.
He continued: But it depends on things still going right. We depend on the successful vaccine programme and disease not taking off again.
“The question is, is it going to be, this time, as bad it has been in the past? Or have we sufficiently mitigated, muffled [and] blunted impact by the vaccine rollout?
“That’s a question we still don’t really know the answer to.”