The results of the study on coronavirus antibodies KoroSero-EST-1 led by the University of Tartu indicate that the prevalence of the virus notably exceeded the national statistics based on nasal swab testing: by ten times in Tallinn and three and a half times in Saaremaa. Only 20% of people who had coronavirus antibodies in their blood had had a symptom of a viral disease. The population-based study on coronavirus antibodies KoroSero-EST-2 has already started. Read the entire article.