More than 85% of adults in England, Wales and Northern Ireland have some protection against Covid-19, new data suggests.
Scotland has the lowest levels of coronavirus protection with 79.1% of adults estimated to have antibodies in their bloodstream.
The presence of Covid antibodies in someone’s blood suggests they have had the infection in the past or received at least one dose of a vaccine.
It takes between two and three weeks after infection or vaccination for the body to make enough antibodies to fight the virus.
Antibodies then remain in the blood at low levels, although these levels can decline over time to the point that tests can no longer detect them.
The figures, from the week beginning June 7, are up from the last data revealed by the Office for National Statistics (ONS), which found that around eight in 10 adults across most of the UK had Covid antibodies.