Source: NHS England, NHS Scotland, Public Health Wales, Gov.uk dashboard, BBC research
Data for England and Scotland is by local authority, for Wales it is by health board. Comparable Northern Ireland data is not available by region. Data for England and Wales is published weekly.
Population estimates come from the National Immunisation Management Service, Welsh Immunisation System, National Records of Scotland and Northern Ireland Statistics and Research Agency. The actual size of the population in each area may differ and so the percentages are also estimates.