Based on the results of the study “Coronavirus SARS-CoV-2 seroepidemiology in Estonia (a test-study in two different areas). KoroSero-EST-1.” a web article “Seroprevalence of SARS-CoV-2 IgG antibodies in two regions of Estonia (KoroSero-EST-1)” has been published, which shows that about 1% of Tallinn and 6% of Saaremaa residents have antibodies to SARS-CoV-2, and most people with antibodies have not suffered from respiratory diseases. Read more about the methods, analysis and results in the article.