A person wearing a protective mask sits at El Prat airport in Barcelona on March 16, 2020. Image Credit: AFP

Madrid: Results from the final stage of a nationwide antibody study showed some 5.2 per cent of Spain's population has been exposed to the coronavirus, health officials said on Monday, confirming findings from earlier stages.

The study, which tested nearly 70,000 people across Spain three times over the past three months, found the virus' prevalence had not altered significantly since preliminary results were published in May.