As things stand, less than one in four of the under-30s will have full vaccine protection on 19 July. Many younger groups have only recently become eligible for vaccines, so have not been able to get a second dose.
Older age groups were jabbed first, so have much higher rates of vaccination. However, even in groups that have been eligible for vaccines for months, there remains a proportion of people who are not fully vaccinated. This is lowest among the over-70s: only 6% of those aged 70-79 in England have not had both doses. However, for 50- to 54-year-olds, who have been eligible for vaccines since mid-March, the number not fully vaccinated stands at 19%.