23.6m people in the UK would need to take up a booster vaccination to catch up with current second-dose numbers

50m

End of December

target

40

30

23.1m

20

Cumulative boosters

or third doses

10

0

October

November

December

50m

End of December

target

40

30

23.1m

20

Cumulative boosters

or third doses

10

0

October

November

December

Guardian graphic. Source: UK Health Security Agency