More than 10 million people in the UK have received complementary Covid vaccines, figures show, as government sources confirmed they were considering plans to restrict travel for people who do not subscribe to the callback offer.
NHS figures for Sunday showed 10,062,704 people in the UK had received a booster, or a third injection for people with weakened immune systems, with the number in England reaching 8.5 million.
The milestone follows a record day for boosters on Saturday when more than 371,000 people in England received the jabs. However, about 30% of those over 80 and over 60% of those aged 50 and over have not yet received the additional doses.
Health Secretary Sajid Javid urged people to accept the offer of recalls when they become eligible, describing the push as a “national mission” that would help the country “avoid a return to restrictions and take advantage of the Xmas”.