Health news from the BBC
Nearly two thirds of people in Wales are estimated to have antibodies to help protect them against Covid-19.
The latest survey by the Office for National Statistics (ONS), which took blood samples from nearly 1,000 people in Wales, estimated that 63.2% have antibodies present.
But this rises for older age groups up to an estimated 90% of those over 80.
Presence of antibodies suggest people have either had the virus already or, in most cases, had a vaccine.