coronavirus variants will likely mean booster vaccinations are needed later in the year after the second round of jabs is completed.During Prime Minister’s Questions in the Commons, Johnson said a 50 million dose deal with pharmaceutical firm Curevac will assist in developing vaccines to respond “at scale to new variants of the virus”.He told MPs: “We’re going to have to get used to vaccinating and then revaccinating in the autumn as we come to face these new variants.”Mutations that give the