It advised that boosters should now be offered to everyone aged 18 and over in order of descending age groups, with priority given to the vaccination of older adults and those in COVID-19 at-risk groups. “Our vaccination programme will continue to pull out all the stops to bring booster doses to all eligible age groups as quickly as possible. “Our booster programme will now in many ways mirror the primary dose vaccination programme which steadily moved its way down through the different age groups over a number of months.